請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/79107
完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 林新智 | |
dc.contributor.author | Ting-Yi Wang | en |
dc.contributor.author | 王婷儀 | zh_TW |
dc.date.accessioned | 2021-07-11T15:44:28Z | - |
dc.date.available | 2023-08-21 | |
dc.date.copyright | 2018-08-21 | |
dc.date.issued | 2018 | |
dc.date.submitted | 2018-08-09 | |
dc.identifier.citation | 1. T. Dursun and C. Soutis, Recent developments in advanced aircraft aluminium alloys. Materials & Design (1980-2015), 2014. 56: p. 862-871.
2. A. Heinz, et al., Recent development in aluminium alloys for aerospace applications. Materials Science and Engineering: A, 2000. 280(1): p. 102-107. 3. N. Birbilis and R.G. Buchheit, Electrochemical characteristics of intermetallic phases in aluminum alloys: An experimental survey and discussion. Journal of the Electrochemical Society, 2005. 152(4): p. B140-B151. 4. R. G. Buchheil, A Compilation of Corrosion Potentials Reported for Intermetallic Phases in Aluminum Alloys. Journal of the Electrochemical Society, 1995. 142(11): p. 3994-3996. 5. A. Villuendas, J. Jorba, and A. Roca, The role of precipitates in the behavior of Young's modulus in aluminum alloys. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 2014. 45(9): p. 3857-3865. 6. B. L. Jiang and Y. M. Wang, Surface Engineering of Light Alloys: Aluminium, Magnesium and Titanium Alloys. H. Dong, Editor. 2010, Woodhead Publishing. p. 110-154. 7. W. Tian, et al., Pitting corrosion of naturally aged AA 7075 aluminum alloys with bimodal grain size. Corrosion Science, 2016. 113: p. 1-16. 8. S. Jain, et al., Spreading of intergranular corrosion on the surface of sensitized Al-4.4Mg alloys: A general finding. Corrosion Science, 2012. 59: p. 136-147. 9. X. Y. Sun, et al., Correlations between stress corrosion cracking susceptibility and grain boundary microstructures for an Al–Zn–Mg alloy. Corrosion Science, 2013. 77: p. 103-112. 10. S. P. Knight, et al., Correlations between intergranular stress corrosion cracking, grain-boundary microchemistry, and grain-boundary electrochemistry for Al–Zn–Mg–Cu alloys. Corrosion Science, 2010. 52(12): p. 4073-4080. 11. N. Birbilis and R. G. Buchheit, Investigation and discussion of characteristics for intermetallic phases common to aluminum alloys as a function of solution pH. Journal of the Electrochemical Society, 2008. 155(3): p. C117-C126. 12. K. Niԟancioğlu, Electrochemical behavior of aluminum-base intermetallics containing iron. Journal of the Electrochemical Society, 1990. 137(1): p. 69-77. 13. N. Birbilis, M. K. Cavanaugh, and R. G. Buchheit, Electrochemical behavior and localized corrosion associated with Al7Cu2Fe particles in aluminum alloy 7075-T651. Corrosion Science, 2006. 48(12): p. 4202-4215. 14. Ugur Malayoglu, et al., An investigation into the mechanical and tribological properties of plasma electrolytic oxidation and hard-anodized coatings on 6082 aluminum alloy. Materials Science and Engineering: A, 2011. 528(24): p. 7451-7460. 15. L. Krishna Rama, A. Purnima Sudha, and G. Sundararajan, A comparative study of tribological behavior of microarc oxidation and hard-anodized coatings. Wear, 2006. 261(10): p. 1095-1101. 16. L. Shao, et al., A comparative study of corrosion behavior of hard anodized and micro-arc oxidation coatings on 7050 aluminum alloy. Metals, 2018. 8(3). 17. A. K. Vijh, Sparking voltages and side reactions during anodization of valve metals in terms of electron tunnelling. Corrosion Science, 1971. 11(6): p. 411-417. 18. S. Ikonopisov, Theory of electrical breakdown during formation of barrier anodic films. Electrochimica Acta, 1977. 22(10): p. 1077-1082. 19. S. Ikonopisov, A. Girginov, and M. Machkova, Post-breakdown anodization of aluminium. Electrochimica Acta, 1977. 22(11): p. 1283-1286. 20. W. Krysmann, et al., Process characteristics and parameters of Anodic Oxidation by spark discharge (ANOF). Crystal Research and Technology, 1984. 19(7): p. 973-979. 21. A. L. Yerokhin, et al., Discharge characterization in plasma electrolytic oxidation of aluminium. Journal of Physics D: Applied Physics, 2003. 36(17): p. 2110. 22. E. Matykina, et al., Real-time imaging of coating growth during plasma electrolytic oxidation of titanium. Electrochimica Acta, 2007. 53(4): p. 1987-1994. 23. F. Jaspard-Mécuson, et al., Tailored aluminium oxide layers by bipolar current adjustment in the Plasma Electrolytic Oxidation (PEO) process. Surface and Coatings Technology, 2007. 201(21): p. 8677-8682. 24. A. L. Yerokhin, et al., Spatial characteristics of discharge phenomena in plasma electrolytic oxidation of aluminium alloy. Surface and Coatings Technology, 2004. 177-178: p. 779-783. 25. F. Mécuson, et al., Diagnostics of an electrolytic microarc process for aluminium alloy oxidation. Surface and Coatings Technology, 2005. 200(1-4): p. 804-808. 26. R. Arrabal, et al., Characterization of AC PEO coatings on magnesium alloys. Surface and Coatings Technology, 2009. 203(16): p. 2207-2220. 27. C. S. Dunleavy, et al., Characterisation of discharge events during plasma electrolytic oxidation. Surface and Coatings Technology, 2009. 203(22): p. 3410-3419. 28. J. M. Albella, et al., Dielectric breakdown processes in anodic Ta2O5 and related oxides. Journal of Materials Science, 1991. 26(13): p. 3422-3432. 29. A. Hickling and M.D. Ingram, Contact glow-discharge electrolysis. Transactions of the Faraday Society, 1964. 60(0): p. 783-793. 30. A. L. Yerokhin, et al., Plasma electrolysis for surface engineering. Surface and Coatings Technology, 1999. 122(2): p. 73-93. 31. R. Liu, et al., Analyses of reinforcement phases during plasma electrolytic oxidation on magnesium matrix composites. Surface and Coatings Technology, 2015. 269: p. 212-219. 32. J. Jovović, et al., Spectroscopic characterization of plasma during electrolytic oxidation (PEO) of aluminium. Surface and Coatings Technology, 2011. 206(1): p. 24-28. 33. J. Jovović, et al., Spectroscopic study of plasma during electrolytic oxidation of magnesium- and aluminium-alloy. Journal of Quantitative Spectroscopy and Radiative Transfer, 2012. 113(15): p. 1928-1937. 34. R. O. Hussein, et al., Spectroscopic study of electrolytic plasma and discharging behaviour during the plasma electrolytic oxidation (PEO) process. Journal of Physics D: Applied Physics, 2010. 43(10): p. 105203. 35. R. O. Hussein, X. Nie, and D.O. Northwood, Influence of process parameters on electrolytic plasma discharging behaviour and aluminum oxide coating microstructure. Surface and Coatings Technology, 2010. 205(6): p. 1659-1667. 36. J. E. Sansonetti and W.C. Martin, Handbook of Basic Atomic Spectroscopic Data. Journal of Physical and Chemical Reference Data, 2005. 34(4): p. 1559-2259. 37. Y. L. Cheng, et al., New findings on properties of plasma electrolytic oxidation coatings from study of an Al–Cu–Li alloy. Electrochimica Acta, 2013. 107: p. 358-378. 38. X. Yang, et al., Optical emission spectroscopy of plasma electrolytic oxidation process on 7075 aluminum alloy. Surface and Coatings Technology, 2017. 324: p. 18-25. 39. W. Gebarowski and S. Pietrzyk, Influence of the Cathodic Pulse on the Formation and Morphology of Oxide Coatings on Aluminium Produced by Plasma Electrolytic Oxidation / Wpływ Impulsu Katodowego Na Tworzenie I Morfologie Warstw Tlenkowych Na Aluminium Otrzymywanych Na Drodze Plazmowego Utleniania Elektrolitycznego. Archives of Metallurgy and Materials, 2013. 58(1). 40. J. H. Wang, et al., Effects of the ratio of anodic and cathodic currents on the characteristics of micro-arc oxidation ceramic coatings on Al alloys. Applied Surface Science, 2014. 292: p. 658-664. 41. A. Melhem, et al., Changes induced by process parameters in oxide layers grown by the PEO process on Al alloys. Surface and Coatings Technology, 2011. 205: p. S133-S136. 42. A. Vladimirovich Timoshenko and Y. Vladimirovna Magurova, Application of oxide coatings to metals in electrolyte solutions by microplasma methods. Revista de Metalurgia, 2000. 36(5): p. 323-330. 43. O. P. Terleeva, et al., Quantitative Parameters and Definition of Stages of Anodic-Cathodic Microplasma Processes on Aluminum Alloys. MATERIALS TRANSACTIONS, 2005. 46(9): p. 2077-2082. 44. W. Gębarowski and S. Pietrzyk, Growth Characteristics of the Oxide Layer on Aluminium in the Process of Plasma Electrolytic Oxidation. Archives of Metallurgy and Materials, 2014. 59(1). 45. A. B. Rogov and V. R. Shayapov, The role of cathodic current in PEO of aluminum: Influence of cationic electrolyte composition on the transient current-voltage curves and the discharges optical emission spectra. Applied Surface Science, 2017. 394: p. 323-332. 46. A. B. Rogov, A. Yerokhin, and A. Matthews, The Role of Cathodic Current in Plasma Electrolytic Oxidation of Aluminum: Phenomenological Concepts of the 'Soft Sparking' Mode. Langmuir, 2017. 33(41): p. 11059-11069. 47. T. W. Clyne and S. C. Troughton, A review of recent work on discharge characteristics during plasma electrolytic oxidation of various metals. International Materials Reviews, 2018: p. 1-36. 48. D. Vahid, Surface Modification of Aluminum Alloys by Plasma Electrolytic Oxidation. Electronic Thesis and Dissertation, 2014. 49. W. Xue, et al., Growth regularity of ceramic coatings formed by microarc oxidation on Al–Cu–Mg alloy. Thin Solid Films, 2000. 372(1): p. 114-117. 50. R. O. Hussein, X. Nie, and D.O. Northwood, An investigation of ceramic coating growth mechanisms in plasma electrolytic oxidation (PEO) processing. Electrochimica Acta, 2013. 112: p. 111-119. 51. J. Li, et al., The outward–inward growth behavior of microarc oxidation coatings in phosphate and silicate solution. Materials Letters, 2010. 64(19): p. 2102-2104. 52. E. P. G. T. van de Ven and H. Koelmans, The Cathodic Corrosion of Aluminum. Journal of The Electrochemical Society, 1976. 123(1): p. 143-144. 53. E. V. Koroleva, et al., Surface morphological changes of aluminium alloys in alkaline solution:: effect of second phase material. Corrosion Science, 1999. 41(8): p. 1475-1495. 54. L. O. Snizhko, et al., Anodic processes in plasma electrolytic oxidation of aluminium in alkaline solutions. Electrochimica Acta, 2004. 49(13): p. 2085-2095. 55. M. M. S. Al Bosta, K. J. Ma, and H. H. Chien, The effect of MAO processing time on surface properties and low temperature infrared emissivity of ceramic coating on aluminium 6061 alloy. Infrared Physics & Technology, 2013. 60: p. 323-334. 56. S. M. Moon and S. I. Pyun, The corrosion of pure aluminium during cathodic polarization in aqueous solutions. Corrosion Science, 1997. 39(2): p. 399-408. 57. H. X. Li, R. G. Song, and Z. G. Ji, Effects of nano-additive TiO2 on performance of micro-arc oxidation coatings formed on 6063 aluminum alloy. Transactions of Nonferrous Metals Society of China, 2013. 23(2): p. 406-411. 58. K. Wang, et al., Effects of Hybrid Voltages on Oxide Formation on 6061 Al-alloys During Plasma Electrolytic Oxidation. Chinese Journal of Aeronautics, 2009. 22(5): p. 564-568. 59. R. McPherson, Formation of metastable phases in flame- and plasma-prepared alumina. Journal of Materials Science, 1973. 8(6): p. 851-858. 60. T. Wei, F. Yan, and J. Tian, Characterization and wear- and corrosion-resistance of microarc oxidation ceramic coatings on aluminum alloy. Journal of Alloys and Compounds, 2005. 389(1-2): p. 169-176. 61. P. S. Santos, H. S. Santos, and S. P. Toledo, Standard transition aluminas. Electron microscopy studies. Materials Research, 2000. 3: p. 104-114. 62. R. Q. Wang, et al., An investigation about the evolution of microstructure and composition difference between two interfaces of plasma electrolytic oxidation coatings on Al. Journal of Alloys and Compounds, 2018. 753: p. 272-281. 63. Y. Zhang, et al., Micro-structures and growth mechanisms of plasma electrolytic oxidation coatings on aluminium at different current densities. Surface and Coatings Technology, 2017. 321: p. 236-246. 64. H. Guo, et al., Formation of oxygen bubbles and its influence on current efficiency in micro-arc oxidation process of AZ91D magnesium alloy. Thin Solid Films, 2005. 485(1-2): p. 53-58. 65. R. H. U. Khan, A. L. Yerokhin, and A. Matthews, Structural characteristics and residual stresses in oxide films produced on Ti by pulsed unipolar plasma electrolytic oxidation. Philosophical Magazine, 2008. 88(6): p. 795-807. 66. R. H. U. Khan, et al., Residual stresses in plasma electrolytic oxidation coatings on Al alloy produced by pulsed unipolar current. Surface and Coatings Technology, 2005. 200(5-6): p. 1580-1586. 67. J. A. Curran and T. W. Clyne, Thermo-physical properties of plasma electrolytic oxide coatings on aluminium. Surface and Coatings Technology, 2005. 199(2-3): p. 168-176. 68. X. Nie, et al., Abrasive wear/corrosion properties and TEM analysis of Al2O3 coatings fabricated using plasma electrolysis. Surface and Coatings Technology, 2002. 149(2): p. 245-251. 69. R. O. Hussein and D.O. Northwood, Production of Anti-Corrosion Coatings on Light Alloys (Al, Mg, Ti) by Plasma-Electrolytic Oxidation (PEO). 2014. 70. J. A. Curran and T. W. Clyne, Porosity in plasma electrolytic oxide coatings. Acta Materialia, 2006. 54(7): p. 1985-1993. 71. Y. Guan, Y. Xia, and G. Li, Growth mechanism and corrosion behavior of ceramic coatings on aluminum produced by autocontrol AC pulse PEO. Surface and Coatings Technology, 2008. 202(19): p. 4602-4612. 72. E. Matykina, et al., Investigation of the growth processes of coatings formed by AC plasma electrolytic oxidation of aluminium. Electrochimica Acta, 2009. 54(27): p. 6767-6778. 73. P. Zhang, et al., TEM analysis and tribological properties of Plasma Electrolytic Oxidation (PEO) coatings on a magnesium engine AJ62 alloy. Surface and Coatings Technology, 2010. 205(5): p. 1508-1514. 74. E. Matykina, et al., Transmission electron microscopy of coatings formed by plasma electrolytic oxidation of titanium. Acta Biomater, 2009. 5(4): p. 1356-66. 75. E. K. Tillous, T. Toll-Duchanoy, and E. Bauer-Grosse, Microstructure and 3D microtomographic characterization of porosity of MAO surface layers formed on aluminium and 2214-T6 alloy. Surface and Coatings Technology, 2009. 203(13): p. 1850-1855. 76. K. Tillous, et al., Microstructure and phase composition of microarc oxidation surface layers formed on aluminium and its alloys 2214-T6 and 7050-T74. Surface and Coatings Technology, 2009. 203(19): p. 2969-2973. 77. C. Liu, et al., An investigation of the coating/substrate interface of plasma electrolytic oxidation coated aluminum. Surface and Coatings Technology, 2015. 280: p. 86-91. 78. Y. Zou, et al., Plasma electrolytic oxidation induced ‘local over-growth’ characteristic across substrate/coating interface: Effects and tailoring strategy of individual pulse energy. Surface and Coatings Technology, 2018. 342: p. 198-208. 79. J. Tian, et al., Structure and antiwear behavior of micro-arc oxidized coatings on aluminum alloy. Surface and Coatings Technology, 2002. 154(1): p. 1-7. 80. L. Wang and X. Nie, Silicon effects on formation of EPO oxide coatings on aluminum alloys. Thin Solid Films, 2006. 494(1-2): p. 211-218. 81. J. He, et al., Influence of silicon on growth process of plasma electrolytic oxidation coating on Al–Si alloy. Journal of Alloys and Compounds, 2009. 471(1-2): p. 395-399. 82. A. E. Gulec, Y. Gencer, and M. Tarakci, The characterization of oxide based ceramic coating synthesized on Al–Si binary alloys by microarc oxidation. Surface and Coatings Technology, 2015. 269: p. 100-107. 83. M. Tarakci, Plasma electrolytic oxidation coating of synthetic Al–Mg binary alloys. Materials Characterization, 2011. 62(12): p. 1214-1221. 84. Y. Gencer and A. E. Gulec, The effect of Zn on the microarc oxidation coating behavior of synthetic Al–Zn binary alloys. Journal of Alloys and Compounds, 2012. 525: p. 159-165. 85. S. Ono, et al., Effect of Electrolyte Concentration on the Structure and Corrosion Resistance of Anodic Films Formed on Magnesium through Plasma Electrolytic Oxidation. Electrochimica Acta, 2017. 240: p. 415-423. 86. S. Ikonopisov, A. Girginov, and M. Machkova, Electrical breaking down of barrier anodic films during their formation. Electrochimica Acta, 1979. 24(4): p. 451-456. 87. C. C. Tseng, et al., The influence of sodium tungstate concentration and anodizing conditions on microarc oxidation (MAO) coatings for aluminum alloy. Surface and Coatings Technology, 2012. 206(16): p. 3437-3443. 88. Y. Liu, et al., Influences of Additive on the Formation and Corrosion Resistance of Micro-arc Oxidation Ceramic Coatings on Aluminum Alloy. Physics Procedia, 2012. 32: p. 107-112. 89. M. Tang, et al., Influence of K2TiF6 in electrolyte on characteristics of the microarc oxidation coating on aluminum alloy. Current Applied Physics, 2012. 12(5): p. 1259-1265. 90. X. M. Zhang, et al., Modulation Effects of K2ZrF6 Additive on Microstructure and Heat Resistance of Micro-arc Oxide Coatings Fabricated on LY12 Alumi-num Alloy. Journal of Inorganic Materials, 2010. 25(8): p. 865-870. 91. F. Liu, et al., Effect of potassium fluoride on the in-situ sealing pores of plasma electrolytic oxidation film on AM50 Mg alloy. Materials Chemistry and Physics, 2015. 162: p. 452-460. 92. H. Li, Y. Sun, and J. Zhang, Effect of ZrO2 particle on the performance of micro-arc oxidation coatings on Ti6Al4V. Applied Surface Science, 2015. 342: p. 183-190. 93. K. M. Lee, et al., Electrochemical response of ZrO2-incorporated oxide layer on AZ91 Mg alloy processed by plasma electrolytic oxidation. Surface and Coatings Technology, 2011. 205(13-14): p. 3779-3784. 94. T. Arunnellaiappan, et al., Fabrication of corrosion-resistant Al2O3–CeO2 composite coating on AA7075 via plasma electrolytic oxidation coupled with electrophoretic deposition. Ceramics International, 2016. 42(5): p. 5897-5905. 95. X. Lu, et al., Plasma electrolytic oxidation coatings on Mg alloy with addition of SiO2 particles. Electrochimica Acta, 2016. 187: p. 20-33. 96. W. Yang, et al., Characterization of self-sealing MAO ceramic coatings with green or black color on an Al alloy. RSC Advances, 2017. 7(3): p. 1597-1605. 97. S. Xin, et al., Influence of cathodic current on composition, structure and properties of Al2O3 coatings on aluminum alloy prepared by micro-arc oxidation process. Thin Solid Films, 2006. 515(1): p. 326-332. 98. P. Wang, et al., Characterization of micro-arc oxidation coatings on aluminum drillpipes at different current density. Vacuum, 2017. 142: p. 21-28. 99. Q. B. Li, et al., Growth mechanism and adhesion of PEO coatings on 2024Al alloy. Surface Engineering, 2016. 33(10): p. 760-766. 100. J. Martin, et al., Effects of electrical parameters on plasma electrolytic oxidation of aluminium. Surface and Coatings Technology, 2013. 221: p. 70-76. 101. V. Dehnavi, et al., Effect of duty cycle and applied current frequency on plasma electrolytic oxidation (PEO) coating growth behavior. Surface and Coatings Technology, 2013. 226: p. 100-107. 102. F. Monfort, et al., Development of anodic coatings on aluminium under sparking conditions in silicate electrolyte. Corrosion Science, 2007. 49(2): p. 672-693. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/79107 | - |
dc.description.abstract | 鋁合金因其質量輕、高比強度、價格便宜、成型性佳、優良的導電及導熱性質、可回收利用等特性常應用於民生、3C產品上,若能提升鋁合金的抗腐蝕性與耐磨耗性將使鋁合金更廣泛用於汽車、船舶與航太工業等嚴苛之環境。
微弧氧化為一種電化學表面改質技術其特色是施以高電壓在鋁合金表面形成一氧化膜,此氧化膜相較於一般陽極處理或硬質陽極處理有較高之膜層硬度以及較佳之附著性、抗蝕性與耐磨耗性。 本研究以鋁合金7075作為基材分別使用鋁酸鈉和偏矽酸鈉基礎之電解液探討在不同電參數下對微弧氧化膜層性質之影響。本實驗利用掃描式電子顯微鏡、X光繞射儀、電子探針微分析儀觀察與分析膜層之微觀形貌、化學成分和結晶組成;使用維氏硬度測試膜層之硬度並利用磨耗試驗機評估膜層耐磨耗性;透過電化學極化曲線來評估膜層抗腐蝕性。 研究結果顯示微弧氧化製程中之陰極電流密度與占空比增加能提升膜層緻密性且擁有厚度較後之膜層,因此在相同電解液系統中其膜層耐磨耗與抗腐蝕性質亦愈佳。在鋁酸鈉系統中隨著陰極電流密度增加可觀察到膜層表面鬆餅組織變少取而代之的是許多小孔洞密集分布在膜層表面,表面變得較平坦且表面粗糙度變小。經由XRD結果分析,鋁酸鈉系統中膜層主要是由α-Al2O3與γ-Al2O3組成;而偏矽酸鈉系統膜層主要是由γ-Al2O3以及少量的α-Al2O3、Mullite與非晶相所組成,因此鋁酸鈉系統其膜層硬度值可達1300~1500 HV且耐磨耗性質比偏矽酸鈉系統佳。 | zh_TW |
dc.description.abstract | Aluminum alloys are widely used in a variety of industries nowadays for their high strength-to-weight ratio, good formability, low density and recyclability. However, the applications of aluminum alloys are restricted by their poor corrosion and wear resistance properties.
Micro arc oxidation (MAO) essentially combines electrochemical oxidation with a high voltage spark which is applied to obtain hard oxide coatings on aluminum alloys. The coatings formed during the MAO process are superior to anodic oxide coatings on plenty properties, such as excellent adhesion to the substrate, high thickness, hardness, corrosion and wear resistance. This study investigated the effects of electrical parameters and electrolyte compositions on the structures and properties of the coating. The MAO coatings on 7075 Al alloys were obtained in aluminate-based and silicate-based electrolytes by using a bipolar pulsed power supply. The morphology, microstructure and compositions of the MAO coatings were characterized by using Scanning electron microscope (SEM), X-ray diffraction (XRD), electron probe micro-analyzer (EPMA). Furthermore, the measurements of microhardness, corrosion- and wear- resistance were also conducted. Experimental results showed that with increasing cathodic current and duty ratio, the MAO coatings become more compact and thicker, which significantly improve the wear- and corrosion- resistance. The microstructural observations of the aluminate-based coatings revealed that with increasing cathodic current, the presence of pancake-like structure is significantly reduced and a lot of small pores appear on the top of the coatings, meaning the coatings became smoother. Moreover, the aluminate-based coatings are mainly composed of α-Al2O3 and γ-Al2O3, the silicate-based coatings mainly consist of γ-Al2O3 and a small amount of α-Al2O3, mullite and amorphous phase. Due to the phase compositions, the microhardness of the aluminate-based coatings can reach 1300~1500 HV and exhibit better wear resistance than silicate-based coatings. | en |
dc.description.provenance | Made available in DSpace on 2021-07-11T15:44:28Z (GMT). No. of bitstreams: 1 ntu-107-R05527052-1.pdf: 7922974 bytes, checksum: ed00870d58cd459704a23b38cd6fbfac (MD5) Previous issue date: 2018 | en |
dc.description.tableofcontents | 誌謝 ii
摘要 iii Abstract iv 目 錄 vi 圖目錄 viii 表目錄 xii 第一章 前言 1 第二章 文獻回顧 2 2.1 鋁與鋁合金 2 2.1.1 鋁合金分類與介紹 2 2.1.2 鋁與鋁合金腐蝕行為 7 2.2 微弧氧化 10 2.2.1微弧氧化與陽極處理 11 2.2.2微弧氧化原理 16 2.2.3微弧氧化放電特性 17 2.2.4微弧氧化膜層成長機制 25 2.2.5微弧氧化膜層微觀結構 30 2.2.6製程參數之影響 35 第三章 實驗方法 42 3.1 實驗流程 42 3.2 試片製備 43 3.3 微弧氧化設備與製程 45 3.4 微弧氧化膜層結構與成分分析 46 3.4.1 掃描式電子顯微鏡 (Scanning Electron Microscopy, SEM) 46 3.4.2 電子探針微分析儀 (Electron Probe X-Ray Microanalyzer, EPMA) 47 3.4.3 X光繞射分析儀 (X-ray Diffraction, XRD) 47 3.5 微弧氧化膜層性質分析 48 3.5.1 表面粗糙度 (Surface Roughness) 48 3.5.2 維氏硬度測試 (Vickers Hardness Test) 49 3.5.3 磨耗性質分析 50 3.5.4 腐蝕性質分析 50 第四章 結果與討論 51 4.1 鋁酸鈉系統下電參數對微弧氧化膜層之影響 51 4.1.1 微弧氧化放電行為 51 4.1.2 膜層巨觀與微觀結構分析 54 4.1.3 成分與結構之分析 65 4.1.4 磨耗性質分析 68 4.1.5 腐蝕性質分析 74 4.2 偏矽酸鈉系統下電參數對微弧氧化膜層之影響 77 4.2.1 微弧氧化放電行為 77 4.2.2 膜層巨觀與微觀結構分析 79 4.2.3 成分與結構之分析 85 4.2.4 磨耗性質分析 89 4.2.5 腐蝕性質分析 92 第五章 結論 94 參考文獻 96 | |
dc.language.iso | zh-TW | |
dc.title | 雙極脈衝電參數及電解液成分對7075鋁合金微弧氧化膜層性質之影響 | zh_TW |
dc.title | Effects of Bipolar Pulsed Electrical Parameters and Electrolyte Compositions on the Micro-Arc Oxidation Coatings on 7075 Aluminum Alloy | en |
dc.type | Thesis | |
dc.date.schoolyear | 106-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 周棟勝,楊木榮,洪衛朋 | |
dc.subject.keyword | 7075鋁合金,微弧氧化,微觀結構,抗蝕性,耐磨耗性, | zh_TW |
dc.subject.keyword | 7075 aluminum alloy,Micro-arc oxidation,Microstructure,Corrosion resistance,Wear resistance, | en |
dc.relation.page | 106 | |
dc.identifier.doi | 10.6342/NTU201802857 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2018-08-09 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 材料科學與工程學研究所 | zh_TW |
dc.date.embargo-lift | 2023-08-21 | - |
顯示於系所單位: | 材料科學與工程學系 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-107-R05527052-1.pdf 目前未授權公開取用 | 7.74 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。