钢的中温(贝氏体)等温处理获得的上、下贝氏体和粒状组织,都具有各自独立的C曲线;在转变初期均能获得单一的组织,而在转变的中、后期通常可获得相邻两组织的复合体.必须用单一组织和Arrhenius关系求相变产物的体激活能.将体激活能、组织形貌和体自由能曲线相结合可诠释下述论点:下或上贝氏体是碳原子扩散控制下在奥氏体中的贫碳或极贫碳区,进行"军队型"(队列式)原子无扩散马氏体样切变相变;而粒状组织是碳原子扩散控制下在奥氏体中的最贫碳区,发生"平民型"(非队列式)原子无扩散界面控制相变.
参考文献
| [1] | Davenport E S,Bain E C.Trans AIME,1930;90:117 |
| [2] | Ko T(柯俊),Cottrel S A.J Iron Steel Inst,1952;172:307 |
| [3] | Hillert M.Acta Metall,1959;7:653 |
| [4] | Vasudevan P,Graham LW,Axon H J.JIronSteellnst,1958;190:386 |
| [5] | Radcliffe S V,Rollason E C.J Iron Steel Inst,1959;191:56 |
| [6] | Yu D G,Shi D K.In:Heat Treatment Institution of CMES,ed.,Proc First Conf Heat Treatment Institution of CMES.Beijing:China Machine Press,1996:105(俞德刚,石德珂.见:中国机械工程学会热处理学会主编,中国机械工程学会热处理学会第1届年会论文集,北京:机械工业出版社,1966:105) |
| [7] | Barford J.J Iron Steel Inst,1966;204:609 |
| [8] | Kang M K,Chen D M,Yang S P,Hu G L.Metall Trans,1992;23A:785 |
| [9] | Borgenstam A,Hillert M.Acta Mater,1997;45:651 |
| [10] | Gupta C,Dey G K,Chakravatty J K,Srivatav D,Banerjee S.Scr Mater,2005;53:559 |
| [11] | Venkatraman M,Mohanty O N,Ghosh R N.Scand J Metall,2001;30:8 |
| [12] | Kang M K,Zhu M.Acta Metall Sin,2005;41:673(康沫狂,朱明.金属学报,2005;41:673) |
| [13] | Xu N K,Guan D H,Kang M K.Phys Test Chem Anal (Phys Test),1983;19(4):2(许念坎,管敦惠,康沫狂.理化检验(物理分册),1983;19(4):21 |
| [14] | Kang M K,Sun J L,Yang Q M.Metall Trans,1990;21A:853 |
| [15] | Kang M K,Zhu M,Zhang M X.J Mater Sci Technol,2005;21:437 |
| [16] | Wmanski R S,Fikelxichian B N,Blanger M E,Kixiskin S T,Fastov N S,Golerik S S.Physical Mctallography.Moscow:Metallurgist,1955:376(УманскийЯС,ФинкельштейнБН,БлантерМЕ,КишкинСТ,ФастовНС,ГореликСС.ФизическоеМеталловедние.Москва:Металлургиздата,1955:376) |
| [17] | Porter D A,Easterling K E.Phase Transformation in Metals and Alloys.New York:Van Nostrand Reinhold Company,1981:172,349 |
| [18] | Hillert M;translated by Lai H Y,Liu G X.Diffusion and Thermodynamics in Alloys.Teaching Materials in Beijing Science and Technology University,Beijing:Metallurgical Industry Press,1984:122(Hillet M著;赖和怡,刘国勋译.合金扩散和热力学.在北京科技大学讲学稿,北京:冶金工业出版社,1984:122) |
| [19] | Bhadeshia H K D H,Edmonds D V.Metall Trans,1979;10A:895 |
| [20] | Hou Z S,Zhao X G,Hou W Y,Liang W.Trans Mater Heat Treat,2005;26(3):6(侯增寿,赵兴国,侯文义,梁伟.材料热处理学报,2005;26(3):6) |
| [21] | Wits J J,Kop T A,van Leeuwen Y,Seitsma J,van der Zwaag S.Mater Sci Eng,2000;A283:234 |
| [22] | Entin P M;translated by Li P L.Austenite Transformation in Steels.Beijing:China Industry Press.1965:167(Ентин R I著;李培良译.钢中奥氏体转变.北京:中国工业出版社,1965:167) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%