利用热模拟试验机和透射电镜,研究了不同轧后保温时间和变形温度对低碳高铌微合金钢析出行为的影响.结果表明:变形后适宜的保温可使Nb(C,N)在奥氏体中大量应变诱导析出,相应地降低了固溶铌含量,使固溶铌降低γ→α相变温度的作用大大削弱;而适当降低变形温度可使Nb(C,N)在铁素体中大量析出,在条件适宜时还可发生相间析出,从而使析出相发挥重要的析出强化作用.
参考文献
| [1] | 雍岐龙;马鸣图;吴宝榕.微合金钢-物理和力学冶金[M].北京:机械工业出版社,1989:405-517. |
| [2] | Senuma T .Present status of future prospects for precipitation research in the steel industry[J].ISIJ International,2002,4(01):1-12. |
| [3] | 东涛,付俊岩.试论我国钢的微合金化发展方向[J].中国冶金,2002(05):16-19. |
| [4] | Douglas G Stalheim.The Use of High Temperature Processing(HTP)steel for High Strength Oil and Gas Transmission Pipeline Applications[A].Beijing:The Metallurgieal Prees,2005:699-704. |
| [5] | Anthony J Deardo.铌在钢中物理冶金基本原理[A].北京:冶金工业出版社,2003:271-313. |
| [6] | 雍岐龙.钢铁材料中的第二相[M].北京:冶金工业出版社,2006:372-378. |
| [7] | 陆匠心,王国栋.一种Nb-Ti微合金钢微合金碳氮化物析出行为的研究[J].钢铁,2005(09):69-72. |
| [8] | Pandit A;Murugaiyan A;Podder AS;Haldar A;Bhattacharjee D;Chandra S;Ray RK .Strain induced precipitation of complex carbonitrides in Nb-V and Ti-V microalloyed steels[J].Scripta materialia,2005(11):1309-1314. |
| [9] | Hodgson P D .Models of the recrystallisation behavior of CMn and mieroalloyed steels during hot working processes[J].Materials Forum,1993,17:403-408. |
| [10] | Radko Kaspar;Josef Siegf ried Distl;Klans Joachim et al.Changes in austenite grain structure of mieroalloyed plate steels due to multiple hot deformation[J].Steel Research International,1998,57(06):271-448. |
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