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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 陳鈞 | |
dc.contributor.author | Chia-Cheng Lin | en |
dc.contributor.author | 林家正 | zh_TW |
dc.date.accessioned | 2021-06-16T10:51:16Z | - |
dc.date.available | 2015-08-17 | |
dc.date.copyright | 2013-08-17 | |
dc.date.issued | 2013 | |
dc.date.submitted | 2013-08-11 | |
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McDonald et. al., Wetting of Molybdenum by Commercial Brazing Filler Alloys, ASM international trends in welding research meeting, 1986, p.795-800. 51. A. Semeniuk and G. R. Brady, Properties of TZM and Nuclear Behavior of TZM Brazements, Welding Research Supplement, Oct. 1974, p.454-s-459-s. 52. K.P. Gupta, The Nb-Ni-Ti(Niobium-Nickel-Titanium)System-Update, Journal of Phase Equilibria and Diffusion, Vol. 29, No. 2, 2008, p. 194-197. 53. T. B. Massalski, Binary Alloy Phase Diagrams, ASM International, Materials Park, 1990. 54. S. Matsumotol et. al., Thermodynamic Analysis of the Phase Equilibria of the Nb-Ni-Ti System, Materials Transactions, Vol. 46, No. 12, 2005, p. 2920 -2930. 55. G. Humpston and D. M. Jacobson, Principles of Soldering and Brazing, ASM International, 1993. 56. 史耀武, 焊接技術手冊, 化學工業出版社, 2009. 57. ASTM, E 855-08, Standard Test Methods for Bend Testing of Metallic Flat Materials for Spring Applications Involving Static Loading. 58. R. E. Gold and D. L. Harrod, Refractory Metal Alloys for Fusion Reactor Applications, Journal of Nuclear Materials, Vol. 85-86, Part 2, 1979, p.805-815. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/61178 | - |
dc.description.abstract | 研究主要係針對多孔鎢基材對多孔鎢基材、鉬基材對鉬基材及多孔鎢基材對鉬基材進行高溫硬銲製程研究,研究中共選用40Ti-35Ni-25Nb (wt%)、50Ti-35Ni-15Nb (wt%)、60Ti-25Ni-15Nb (wt%)、純Pd 、純Ti、Ti-15-3及60Mo-40Ru (wt%)等7種不同的高溫硬銲銲片進行硬銲製程評估,硬銲製程中藉由改變硬銲溫度 、硬銲時間及銲片厚度,用以評估硬銲製程參數與顯微結構之關係。實驗結果顯示40Ti-35Ni-25Nb (wt%)、50Ti-35Ni-15Nb (wt%)及60Ti-25Ni-15Nb (wt%)等3種填料之硬銲溫度係低於1350°C。對於porous W/40Ti-35Ni-25Nb/Mo硬銲件而言,其銲道主要由具延性之相所組成,且40Ti-35Ni-25Nb填料對於多孔鎢基材之熔滲相對於50Ti-35Ni-15Nb填料及60Ti-25Ni-15Nb填料具最小之熔滲深度,因此,40Ti-35Ni-25Nb填料係有可能被用於多孔鎢基材與鉬基材之異材接合。對於Mo/40Ti-35Ni-25Nb/Mo、Mo/50Ti-35Ni-15Nb/Mo及 Mo/60Ti-25Ni-15Nb/Mo等3種硬銲件硬銲後,其銲道具有相似之顯微結構變化,其中Mo/60Ti-25Ni-15Nb/Mo 硬銲件於1250°C/600s硬銲時可獲得最高之彎曲強度(526 MPa)。對於Pd填料而言,研究中成功以Pd銲片完成多孔鎢基材對多孔鎢基材、鉬基材對鉬基材及多孔鎢基材對鉬基材之硬銲接合,接合後之銲道顯微組織無可見之缺陷或介金屬相產生,此外,以1610°C/600s進行硬銲接合時,熔融之Pd填料對於多孔鎢基材之熔滲深度極為輕微(<30 μm),因此,Pd填料相當有潛力被應用在多孔鎢基材與鉬基材之接合。由於銲道出現嚴重之孔洞問題,研究中並無法成功以純Ti或Ti-15-3填料硬銲接合多孔鎢基材與鉬基材。對於Mo/60Mo-40Ru/Mo硬銲件而言,研究中分別以1970°C/600s 及2000°C/600s進行硬銲接合皆可獲得品質良好之接點,其銲道主要係由σ 相和Mo-rich相所組成,而對於porous W/60Mo-40Ru/Mo硬銲件來說,其銲道顯微組織與Mo/60Mo-40Ru/Mo硬銲件相似,但品質良好之接點僅能由硬銲條件2000°C/600s獲得,較低之硬銲溫度並無法獲得良好之硬銲接點,由於60Mo-40Ru填料係可成功進行鉬基材對鉬基材及多孔鎢基材對鉬基材之硬銲接合,因此,60Mo-40Ru填料係可被應用在高溫領域中多孔鎢基材與鉬基材之硬銲接合。 | zh_TW |
dc.description.abstract | The study of high temperature brazing porous W/porous W, Mo/Mo and porous W/Mo has been performed in the experiment. Seven brazing filler foils are used in the experiment, including: 40Ti-35Ni-25Nb in wt%, 50Ti-35Ni-15Nb in wt%, 60Ti-25Ni-15Nb in wt%, pure Pd, pure Ti, Ti-15-3, 60Mo-40Ru in wt%. Microstructural evolution of the joint using various brazing conditions, including brazing temperature, time and thickness of the filler foil has been evaluate in the experiment. The 40Ti-35Ni-25Nb, 50Ti-35Ni-15Nb and 60Ti-25Ni-15Nb filler foils are featured with low brazing temperature of below 1350°C. For the porous W/40Ti-35Ni-25Nb/Mo joint, the brazed joint contains ductile phases and shows least penetration of molten braze into the porous W substrate. The 40Ti-35Ni-25Nb filler foil shows potential in dissimilar brazing porous W and Mo. Similar microstructural evolution is observed for Mo/40Ti-35Ni-25Nb/Mo, Mo/50Ti-35Ni-15Nb/Mo and Mo/60Ti-25Ni-15Nb/Mo joints. The Mo/60Ti-25Ni-15Nb/Mo joint brazed at 1250°C for 600s demonstates the highest bending strength of 526 MPa. For brazing porous W/porous W, Mo/Mo and porous W/Mo joints, successful brazed joints are obtained from using the Pd filler foil. Brazed joints are fully dense and free of any intermetallic phase. Meanwhile, infiltration of the Pd-rich melt into the porous W substrate is trivial, limited below 30 μm for the specimen brazed at 1610°C for 600s. The application of Pd filler metal shows great potential in brazing porous W and Mo. The application of Ti and T15-3 foil in brazing porous W/Mo are not appropriate due to the presence of voids in the brazed joint. For Mo/60Mo-40Ru/Mo joint, sound joint is obtained from brazing at 1970°C and 2000°C for 600s, respectively. The brazed joints are comprised of σ and Mo-rich phases. For Mo/60Mo-40Ru/porous W joint, sound bonding is achieved only from brazing at 2000°C for 600s, and similar microstructure of the joint is obtained. The 60Mo-40Ru braze alloy shows potential in bonding Mo/Mo and porous W/Mo for high temperature applications. | en |
dc.description.provenance | Made available in DSpace on 2021-06-16T10:51:16Z (GMT). No. of bitstreams: 1 ntu-102-D97527010-1.pdf: 15705357 bytes, checksum: ac3f79c426c211a8807ef87e6d838a48 (MD5) Previous issue date: 2013 | en |
dc.description.tableofcontents | 目錄
口試委員會審定書 i 誌謝 ii 中文摘要 iii 英文摘要 iv 第一章 前言 1 第二章 文獻回顧 3 2-1 熔滲式陰極 3 2-2 材料之接合 5 2-3 硬銲基本原理 11 2-4 硬銲方法 14 2-5 鎢及鎢合金硬銲 16 2-6 鉬及鉬合金硬銲 19 第三章 實驗方法 22 3-1 實驗材料 22 3-2 實驗流程 22 3-3 顯微組織觀察及成分分析 26 3-4 熔滲深度觀察 26 3-5 三點彎曲測試 26 3-6 微硬度測試 27 第四章 結果與討論 31 4-1 Porous W/Ti-Ni-Nb/Porous W硬銲件 31 4-2 Mo/Ti-Ni-Nb/Mo硬銲件 31 4-2-1 Mo/40Ti-35Ni-25Nb/Mo硬銲件顯微結構 31 4-2-2 Mo/50Ti-35Ni-15Nb/Mo硬銲件顯微結構 38 4-2-3 Mo/60Ti-25Ni-15Nb/Mo硬銲件顯微結構 42 4-2-4 Mo/Ti-Ni-Nb/Mo硬銲件微硬度測試 44 4-2-5 Mo/Ti-Ni-Nb/Mo硬銲件三點彎曲測試 48 4-3 Porous W/Ti-Ni-Nb/Mo硬銲件 51 4-3-1 Porous W/40Ti-35Ni-25Nb/Mo硬銲件顯微結構 51 4-3-2 Porous W/50Ti-35Ni-15Nb/Mo硬銲件顯微結構 56 4-3-3 Porous W/60Ti-25Ni-15Nb/Mo硬銲件顯微結構 58 4-3-4 Porous W/Ti-Ni-Nb/Mo硬銲件熔滲深度 60 4-3-5 Porous W/Ti-Ni-Nb/Mo硬銲件微硬度測試 64 4-4 Porous W/Pd/Porous W硬銲件 68 4-4-1 Porous W/Pd/Porous W硬銲件顯微結構 68 4-4-2 Porous W/Pd/Porous W硬銲件熔滲深度 73 4-4-3 Porous W/Pd/Porous W硬銲件微硬度測試 73 4-5 Mo/Pd/Mo硬銲件 77 4-5-1 Mo/Pd/Mo硬銲件顯微結構 77 4-5-2 Mo/Pd/Mo硬銲件微硬度測試 81 4-5-3 Mo/Pd/Mo 硬銲件三點彎曲測試 81 4-6 Porous W/Pd/Mo硬銲件 87 4-6-1 Porous W/Pd/Mo硬銲件顯微結構 87 4-6-2 Porous W/Pd/Mo硬銲件熔滲深度 91 4-6-3 Porous W/Pd/Mo硬銲件微硬度測試 91 4-7 Porous W/Ti/Porous W硬銲件 96 4-7-1 Porous W/Ti/Porous W硬銲件顯微結構 96 4-8 Mo/Ti/Mo硬銲件 96 4-8-1 Mo/Ti/Mo硬銲件顯微結構 96 4-9 Porous W/Ti/Mo硬銲件 98 4-9-1 Porous W/Ti/Mo硬銲件顯微結構 98 4-10 Mo/Ti-15-3/Mo硬銲件 102 4-10-1 Mo/Ti-15-3/Mo硬銲件顯微結構 102 4-11 Mo/60Mo-40Ru/Mo硬銲件 104 4-11-1 Mo/60Mo-40Ru/Mo硬銲件顯微結構 109 4-11-2 Mo/60Mo-40Ru/Mo硬銲件微硬度測試 109 4-12 Porous W/60Mo-40Ru/Mo硬銲件 113 4-12-1 Porous W/60Mo-40Ru/Mo硬銲件顯微結構 113 4-12-2 Porous W/60Mo-40Ru/Mo硬銲件微硬度測試 113 第五章 結論 119 參考文獻 121 | |
dc.language.iso | zh-TW | |
dc.title | 多孔鎢與鉬高溫硬銲之研究 | zh_TW |
dc.title | Study of High Temperature Brazing Porous Tungsten and Molybdenum | en |
dc.type | Thesis | |
dc.date.schoolyear | 101-2 | |
dc.description.degree | 博士 | |
dc.contributor.coadvisor | 薛人愷 | |
dc.contributor.oralexamcommittee | 蔡履文,吳憲政,施修正 | |
dc.subject.keyword | 多孔鎢,鉬,高溫硬銲,顯微結構,熔滲, | zh_TW |
dc.subject.keyword | Porous Tungsten,Molybdenum,High Temperature Brazing,Microstructure,Infiltration, | en |
dc.relation.page | 126 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2013-08-12 | |
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 |
顯示於系所單位: | 材料科學與工程學系 |
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