請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/63549完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 陳永傳(Yong-Chwang Chen) | |
| dc.contributor.author | Po-Han Chu | en |
| dc.contributor.author | 朱柏翰 | zh_TW |
| dc.date.accessioned | 2021-06-16T17:13:52Z | - |
| dc.date.available | 2015-08-20 | |
| dc.date.copyright | 2012-08-20 | |
| dc.date.issued | 2012 | |
| dc.date.submitted | 2012-08-20 | |
| dc.identifier.citation | 1.黃振賢,機械材料,文京圖書公司,1990,pp.168-210
2.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研究所,碩士論文,2010 3.朱致成,“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”,國立台灣大學機械工程研究所,碩士論文,2011 4.Toshino Okuno,“Effect of Microstructure on the Toughness of Hot Work Tool Steels,AISI H13,H10,and H19”,Trans.Iron Steel Inst.Jpn. Vol.27, No.1,Jan.1987, pp.51-59 5.西村富隆(黃紹雄譯) ,“淬火冷卻速度對於模具鋼之硬度及韌性之影響”,金屬熱處理,第54期, 1997, pp.85-89 6.邱六合,葉書宏,羅萬中,黃建龍,“淬冷速率對JIS SKD61 熱作模具鋼碳化物析出及韌性之影響”,金屬熱處理,101期, 2011, pp.45-51 7.S.Mayer,C.Scheu,H.Leitner,H.Clemens and I.Siller,“Influence of the Cooling Rate on the Mechanical Properties of a Hot-work Tool Steel”,BHM,Vol.152,Issue:5,2007,pp.132-136 8.鋼及其熱處理,家恩出版社,1974,pp.286-287 9.日本熱處理協會編著(劉文泉譯),熱處理指南,機械工業出版社出版,1987,pp.286 10.Yan.G,Huang.X,Wang.Y,Qin.X,Yang.M,Chu.Z and Jin.Kang,“Effects of Heat Treatment on Mechanical Properties of H13 Steel”,Metal Science and Heat Treatment,Vol.52,Nos.7–8,2010,pp.393-395 11.黃振賢,金屬熱處理,文京圖書公司,2000,p.97 12.蔡大和,江益璋,金屬材料組織,全華科技圖書股份有限公司,1993,p.81 13.歐陽渭城,施儀訓,模具熱處理,全華科技圖書股份有限公司,1993,p.147 14.Robert Wilson,Metallurgy and Heat Treatment of Tool Steels,六合出版社 McGraw-Hill Book Company(UK),1971,pp.70-76 15.Ali M.Rashidi,M.Moshrefi-Torbati,“Effect of Tempering Conditions on the Mechanical Properties of Ductile Cast Iron with Dual Matrix Structure(DMS)”,Materials Letters ,Vol.45,2000,pp.203-207 16.Hossein Arabi,Shamseddin Mirdamadi and A.R.Abdolmaleki,'Temper Embrittlement Sensitivities of 3Cr–1Mo and 2.25Cr–1Mo Low Alloy Steels',ISIJ International,Vol.47,No.9,2007,pp.1363–1367 17.胡翔,林顏盛,黃正安,馮干江,許玉賢,“5Cr2NiMoVSi大截面熱作模具鋼的组織及回火脆化”,金屬學報,Vol.23,No.5,1987,pp.369-373 18.R.A.Mulford,C.J.Mcmahon,Jr.,D.P.Pope, H.C.Feng,“Temper Embrittlement of Ni-Cr Steels by Phosphorus”,Metallurgical Transactions A,Vol.7A,August 1976,pp.1183-1195 19.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,1993,pp.15-30 20.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,2005,pp.15-24 21.鋼之熱處理技術,余煥騰,六合出版社,1983,pp.60-72 22.周健,馬黨參,劉寶石,康愛君,李向陽,'H13鋼帶狀偏析演化規律研究',鋼鐵研究學報,Vol.24,2012,pp.47-52 23.霍曉陽,'影響H13熱作模具鋼等向性的因素',鋼鐵研究學報,Vol.20,NO.11,2008,pp.47-50 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/63549 | - |
| dc.description.abstract | 本研究是以SKD61之規範鋼及改變規範鋼中某些合金元素含量的五種改良鋼材為實驗材料,在固定的淬火溫度和保溫時間下,用不同的冷卻速度淬火,再以590℃鹽浴爐分成0.5hr、3hr、6hr、10hr四個不同的回火持溫時間,各施以兩次回火,回火完成後水冷至室溫。最後量測各個試片之硬度值和衝擊值,以比較不同熱處理條件下各材料的機械性質,並以光學顯微鏡、SEM與EPMA分析各試片之顯微組織與化學組成,探討淬火冷卻速度和回火持溫時間對各材料顯微組織的影響。
研究結果顯示,淬火冷速較快的試片其硬度值和衝擊值幾乎都比淬火冷速較慢的試片高,其中若含有較多碳、鉻、錳元素的試片,其硬度值也較好。隨著回火持溫時間的增長,各材料的硬度值都會跟著下降,含有較多釩、鉻、鉬的材料下降幅度較小,抵抗回火軟化的能力較佳。 此外,影響衝擊值主要有三個因素:(1)硬度值的下降使韌性變好,衝擊值提升;(2)回火時間增長或淬火冷速變慢,使較多碳化物在晶界上生成,造成韌性下降,衝擊值降低;(3)合金成份在回火時對韌性的影響。上述三個因素在不同的回火持溫時間下的效果強弱各有不同。 | zh_TW |
| dc.description.abstract | In this study, the effect of different quenching cooling rates and tempering holding times on the mechanical properties of hot work tool steels was investigated. SKD61 and its modified steels were used as experimental materials. Quenching temperature and holding time are fixed at 1030℃ and 1hr, respectively. There are two kinds of cooling rate during quenching. After quenching, specimens were dipped in a 590℃ salt bath for tempering, with four different holding times of 0.5, 3, 6 and10 hours. All specimens were tempered twice. Then the hardness and impact toughness of these specimens were measured. In addition, the microstructure and chemical compositions were examined using OM, SEM and EPMA, and the relationships between different heat treatment parameters and mechanical properties were revealed.
As results, the specimens which were cooled faster during quenching have higher hardness and impact toughness mostly, and the specimens which contained more carbon, chromium and manganese possess higher hardness value. We found out that there are three main factors affecting the impact toughness value: (1) Impact toughness increases due to the decrease of hardness. (2) Impact toughness decreases because of the precipitation of carbides on the grain boundaries, when the tempering holding time gets longer or the quenching rate becomes slower. (3) the influence of alloy element on the toughness during tempering. The effect of the three factors will vary with the tempering holding time. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-16T17:13:52Z (GMT). No. of bitstreams: 1 ntu-101-R99522730-1.pdf: 9114033 bytes, checksum: 4e82c46f8025bd50af27e85166457841 (MD5) Previous issue date: 2012 | en |
| dc.description.tableofcontents | 目 錄
誌 謝 I 摘 要 II Abstract III 目 錄 IV 圖 目 錄 VI 表 目 錄 IX 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 2-2 淬火 3 2-2-1 本實驗的淬火條件之說明 3 2-2-2淬火冷速對機械性質的影響 4 2-3 回火 5 2-3-1本實驗回火條件之說明 5 2-3-2高溫回火 5 2-3-3二次回火 6 2-4 合金元素配置的影響 6 2-4-1合金元素對淬火之影響 6 2-4-2合金元素對回火之影響 7 2-4-3合金元素對顯微組織之影響 7 2-4-4其他與本實驗有關之參考文獻 8 第三章 實驗設備與方法 9 3-1 實驗規劃 9 3-2 實驗設備 10 3-2-1 淬火設備 10 3-2-2 回火設備 11 3-2-3 溫度量測及記錄設備 11 3-2-4 其他設備 11 3-3 實驗方法 12 3-3-1 試片合金成份與規格 12 3-3-2 熱處理-淬火 12 3-3-3 熱處理-回火 14 3-4 熱處理後的分析及試驗 15 3-4-1 硬度測試 15 3-4-2 金相顯微組織觀察 16 3-4-3 衝擊試驗 17 第四章 結果與討論 18 4-1淬火後分析 18 4-1-1 淬火後硬度分析 18 4-1-2 淬火後顯微組織觀察 19 4-2 淬火回火後分析 20 4-2-1 淬火回火後硬度分析 20 4-2-3 淬火回火後顯微組織觀察 31 第五章結論 33 圖表區 35 參考文獻 80 | |
| dc.language.iso | zh-TW | |
| dc.subject | 衝擊值 | zh_TW |
| dc.subject | 熱作工具鋼 | zh_TW |
| dc.subject | 機械性質 | zh_TW |
| dc.subject | 淬火 | zh_TW |
| dc.subject | 回火 | zh_TW |
| dc.subject | Tempering | en |
| dc.subject | Hot work tool steel | en |
| dc.subject | Mechanical properties | en |
| dc.subject | Quenching | en |
| dc.subject | Impact toughness | en |
| dc.title | 淬火冷卻速度及回火持溫時間對熱作工具鋼機械性質之影響 | zh_TW |
| dc.title | Effects of Different Quenching Cooling Rates and Tempering Holding Times on the Mechanical Properties of Hot Work Tool Steels | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 100-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 黃振賢,周挺正 | |
| dc.subject.keyword | 熱作工具鋼,機械性質,淬火,回火,衝擊值, | zh_TW |
| dc.subject.keyword | Hot work tool steel,Mechanical properties,Quenching,Tempering,Impact toughness, | en |
| dc.relation.page | 81 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2012-08-20 | |
| 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 | |
文件中的檔案:
| 檔案 | 大小 | 格式 | |
|---|---|---|---|
| ntu-101-1.pdf 未授權公開取用 | 8.9 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。
