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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 陳永傳 | |
dc.contributor.author | Chi-Chen Chu | en |
dc.contributor.author | 朱致成 | zh_TW |
dc.date.accessioned | 2021-06-15T05:07:01Z | - |
dc.date.available | 2013-08-22 | |
dc.date.copyright | 2011-08-22 | |
dc.date.issued | 2011 | |
dc.date.submitted | 2011-08-18 | |
dc.identifier.citation | 1. 大和久重雄(黃振賢譯),“熱間模具的熱疲勞龜裂與熱處理”,金屬熱處理,第66 期,pp.68∼73,2000
2. 劉喜政,鋼之熱處理,全華科技圖書,pp.218∼229,1992 3. 高一之、林群新、陳建成、敖仲寧,“熱作工具鋼H10、H11、H12、H13 材料特性之比較”,金屬熱處理,第57 期,pp.44∼50,1998 4. 鄒易康,“可控制冷速之熱處理設備及其在熱作工具鋼淬火之應用”國立台灣大學機械工程學研究所,碩士論文,pp.21∼25、55∼56,2010 5. 歐陽渭城、施議訓,模具熱處理,全華科技圖書,pp.79∼80、146∼151,1993 6. 李正國、李志偉等,熱處理,高立圖書有限公司,pp.17∼135,1991 7. 黃振賢,金屬熱處理,文京圖書有限公司,pp.60∼263,1998 8. 王文雄、李訓杰、吳錫侃,“AISI H13 熱作模具鋼之熱處理”,金屬熱處理,第36 期,pp.15∼30,1993 9. 吳佳霖、李驊登、紀竹旺,“熱作工具鋼系之高溫特性探討”,金屬熱處理,第86 期,pp.15∼24,2005 10. 黃巧伶,“彈簧鋼材的顯微組織及機械性質”,國立台灣大學材料與工程學研究所,碩士論文,pp.48∼58,2006 11. 林國璋,“低錳鑄鋼之淬火-回火熱處理與金相顯微組織及機械性質關係之研究”,逢甲大學機械工程學系,碩士論文,pp.30∼48,2002 12. Nie Yi-Hong , Hui Wei-Jun , Fu Wan-Tang , Weng Yu-Qing , Dong Han , “Effect of isothermal heat treatment on microstructure and mechanical properties of a medium-carbon ultra high strength spring steel” , Kang T'ieh/Iron and Steel (Peking), v 43 , n 4 , pp.75-79 , 2008 13. 賴榮賢,“編織針用碳工具鋼的熱處理”,國立台灣大學機械工程學研究所,碩士論文,pp.22∼33,2000 14. Xu Li-Ke , Sun Wei-Lian , Wang Hui-Qiang , “Effect of tempering cooling rate on impact toughness of heat-resistant steel 2Cr12NiMoNbVN” , Dongbei Daxue Xuebao/Journal of Northeastern University , v 31 , n SUPPL. 2 , pp.78-80 , 2010 15. Toshio Okuno , “Effect of microstructure on the toughness of hot work tool steels ,AISI H13, H10, H19” , Transactions of the Iron and Steel Institute of Japan , v 27 , n1 , pp.51-59,1987 16. M.Gojic , L.Kosec , P.Matkovic , “Effect of tempering temperature on mechanical properties and microstructure of low alloy Cr and CrMo steel” , Journal of Materials Science , v 33 , n 2, pp.395-403 , 1998 17. Liu Yan-Xia , Ma Yong-Qing , Wang Yue-Hua , Zhang Zhan-Ping , Zhang Yang ,“Changes of tempering microstructure and properties of Fe-Cr-V-Ni-Mn-C cast alloys” , Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment , v25 , n 5 , pp.631-634,2004 18. 蔡錫堯,材料實驗,文京圖書公司,p.102,1987 19. 余煥騰,“有關工具鋼熱處理之探討”,金屬熱處理,第65 期,pp.58∼73,2000 20. 楊義雄,熱處理導論-應用篇,全華科技圖書,pp.61∼95,1994 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/46397 | - |
dc.description.abstract | 本實驗以不同淬火溫度、不同持溫時間、不同回火溫度、不同回火持溫時間,將SKD61 之規範鋼以及改良鋼以高速氣冷方式淬火,再回火至相同硬度後比較其衝擊值,並透過觀察顯微組織,以了解鋼料的淬火溫度、持溫時間和合金元素配置對機械性質的影響,並探討何種熱處理及合金配置對機械性質有最佳的結果。實驗結果顯示,SKD61 的改良鋼在不同淬火溫度及不同保溫時間下淬火,若鋼材合金含量越高,則硬化能越高,淬火後硬度值越高。
在回火條件的選擇上,有較高淬火硬度的鋼材,回火至相同硬度的溫度不一定較高,而與合金的配置有關。合金含量較低的規範鋼Z,回火溫度並不隨著淬火溫度和持溫時間的提升而有著明顯的增加;回火持溫時間也不隨著淬火溫度和持溫時間的不同而有顯著差別。但改良鋼B、C 相較於規範鋼Z,大量增加了Mo 含量,所以隨著淬火溫度的提升,Mo 溶入基地的量增加,因而增加了回火軟化抵抗,在回火溫度沒有增加時,無法以二次回火就達到目標硬度值48HRC,需經過第三次回火,硬度才能達到目標值。 從衝擊值的表現上來看,高合金含量的改良鋼B、C,以較低淬火溫度(1000℃)及較短持溫時間(30 分)熱處理後之衝擊值表現較佳,但不論淬火溫度的高低與持溫時間的長短,改良鋼B、C 大多可以具有一定的衝擊值,與硬度值的關聯性較低;而合金元素含量較低的改良鋼A,淬火持溫時間的長短對衝擊值影響很大,尤其當淬火溫度較低時。 | zh_TW |
dc.description.abstract | This article of this study is to investigate the effect of different heat treatment parameters and different alloy elements on the microstructure and mechanical properties such as hardness and impact value of SKD61 and its modified steels. The results show that the modified steels containing higher alloy elements have higher hardenability and possess higher hardness after quenching at different temperatures and in different holding time. Steels with higher hardness after quenching will not always have higher hardness after tempering. It is more relevant to the elements of alloy. The tempering temperature of Z steel, which contains lower alloy elements, does not increase significantly with the quenching temperature and heating time. Its tempering time also changes little for all different quenching temperature and heating time. On the other hand, the modified steel B and C contain much more Mo in comparison to Z steel. The amount of Mo dissolved in the matrix will increase with the raise of quenching temperature, and increase the resistance of softening while tempering. It will take three or more times to temper to target hardness of 48HRC rather than twice if the temper temperature remains unchanged.
In the performance of impact value, high alloy containing steel B and C performed better at the lower quenching temperature of 1000℃ and shorter heating time of 30 minutes. The relevance between hardness and impact value of modified steel B and C is weak, because the materials always possess rather stable impact value. As for the modified steel A, the heating time of quenching affects the impact value markedly especially at the lower quenching temperature of 1000℃ | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T05:07:01Z (GMT). No. of bitstreams: 1 ntu-100-R98522735-1.pdf: 17983847 bytes, checksum: 3274f2efef1c3d7a74912a89293468b4 (MD5) Previous issue date: 2011 | en |
dc.description.tableofcontents | 誌 謝…………………………………………………………………………………..I
摘 要………………………………………………………………………………….II 英文摘要……………………………………………………………………………...III 目 錄…………………………………………………………………………............V 圖目錄……………………………………………………………………………….VII 表目錄…………………………………………………………………………………X 第一章緒 論…………………………………………………………………...1 1.1 前 言........................................................................................................... 1 1.2 實驗動機與目的............................................................................................ 2 第二章 實驗理論............................................................................................... 3 2.1 熱處理簡介.................................................................................................... 3 2.1.1 淬 火................................................................................................. 3 2.1.1.1 淬火溫度對晶粒大小的影響.................................................... 4 2.1.2 回 火................................................................................................. 4 2.1.2.1 高溫回火.................................................................................. 4 2.1.2.2 二次回火.................................................................................. 5 2.1.2.3 回火脆性.................................................................................. 6 2.2 合金元素配置的影響.................................................................................... 6 2.2.1 合金元素對淬火的影響...................................................................... 6 2.2.2 合金元素對顯微組織的影響.............................................................. 7 2.2.3 合金元素對硬度的影響...................................................................... 7 2.2.4 合金元素對硬化能的影響.................................................................. 8 2.2.5 合金元素對韌性的影響...................................................................... 8 2.3 熱處理介質.................................................................................................... 9 2.4 熱處理條件對合金鋼機械性質影響之相關研究.......................................... 9 第三章 實驗設備與方法 ................................................................................. 11 3.1 實驗規劃...................................................................................................... 11 3.2 實驗設備...................................................................................................... 11 3.2.1 試片合金成分與規格........................................................................ 11 3.2.2 淬火設備........................................................................................... 12 3.2.3 回火加熱爐....................................................................................... 12 3.2.4 溫度量測及記錄設備........................................................................ 12 3.2.5 實驗儀器........................................................................................... 13 3.3 實驗方法...................................................................................................... 13 3.3.1 淬 火............................................................................................... 13 3.3.1.1 加熱爐管內之溫度量測......................................................... 13 3.3.1.2 試片淬火前處理..................................................................... 13 3.3.1.3 淬火後冷卻方式..................................................................... 14 3.3.2 溫度記錄器設定方式........................................................................ 14 3.3.3 回 火............................................................................................... 14 3.3.3.1 回火準備................................................................................ 14 3.2.2.2 回火後處理............................................................................. 15 3.4 熱處理前後的試驗...................................................................................... 15 3.4.1 試片的合金元素分析........................................................................ 15 3.4.2 硬度試驗........................................................................................... 15 3.4.2.1 洛氏硬度試驗......................................................................... 15 3.4.2.2 Vickers 微硬度試驗................................................................. 16 3.4.3 韌性試驗........................................................................................... 16 3.4.4 金相觀察........................................................................................... 17 第四章 結果與討論......................................................................................... 18 4.1 淬火後硬度分析.......................................................................................... 18 4.2 回火條件分析.............................................................................................. 19 4.3 回火後試片表層與心部硬度分析............................................................... 20 4.4 顯微組織觀察.............................................................................................. 21 4.5 韌性分析...................................................................................................... 21 第五章 結 論………………………………………………………………….24 參考文獻 ………………………………………………………………………….77 附 錄………………………………………………………………………………….79 | |
dc.language.iso | zh-TW | |
dc.title | 淬火溫度及持溫時間對SKD61及其改良鋼種之機械性質的影響 | zh_TW |
dc.title | Effects of Different Quenching Temperatures and Different Holding Time on the Mechanical Properties of SKD61 and Its Modified Steels | en |
dc.type | Thesis | |
dc.date.schoolyear | 99-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 黃振賢,陳繁雄,周挺正 | |
dc.subject.keyword | 熱作工具鋼,淬火,回火,硬度,衝擊值, | zh_TW |
dc.subject.keyword | quenchin,tempering,hot work tool steel,hardness,microstructure, | en |
dc.relation.page | 80 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2011-08-18 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
顯示於系所單位: | 機械工程學系 |
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