利用光学显微镜(OM)、扫描电镜(SEM)、透射电镜(TEM)和拉伸试验等方法观察和测定了00Cr12Ti铁素体不锈钢退火后的显微组织和力学性能,研究了工艺、组织和性能之间的关系.结果表明:经850℃保温2 min的退火后,00Cr12Ti铁素体不锈钢具有最佳的综合力学性能,屈服强度为230 MPa,抗拉强度为425 MPa,伸长率为35％.退火后00Cr12Ti铁素体不锈钢的组织由无畸变的再结晶铁素体和析出相粒子组成,其中析出相粒子由微米级的复合夹杂物和纳米级的析出物TiC构成.夹杂物破坏了基体的连续性,对其力学性能产生不利的影响.TiC有利于提高了00Cr12Ti铁素体不锈钢的强度,但降低了塑性.
参考文献
| [1] | Haitao Yan;Hongyun Bi;Xin Li .Microstructure and texture of Nb+Ti stabilized ferritic stainless steel[J].Materials Characterization,2008(12):1741-1746. |
| [2] | 毕洪运,潘国强,李鑫.宝钢汽车排气系统用铁素体不锈钢产品开发[J].宝钢技术,2011(02):6-11. |
| [3] | YOU Xiang-mi,JIANG Zhou-hua,LI Hua-bing.Ultra-Pure Ferritic Stainless Steels-Grade, Refining Operation, and Application[J].钢铁研究学报（英文版）,2007(04):24-30. |
| [4] | Sim GM;Ahn JC;Hong SC;Lee KJ;Lee KS .Effect of Nb precipitate coarsening on the high temperature strength in Nb containing ferritic stainless steels[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2005(1/2):159-165. |
| [5] | Lagier J;Rombeaux P;Ragot J.Ferritic stainless steels in exhaust systems[J].Innovation Stainless Steel,1993(01):159-164. |
| [6] | 李学锋.汽车用00Cr12Ti钢的性能优化[J].钢铁,2004(07):54-57. |
| [7] | 毕洪运,武勇,李鑫.汽车排气系统用铁素体不锈钢的应用及腐蚀失效评价[J].宝钢技术,2010(02):7-11. |
| [8] | 李永红;李超;任世宏.铁素体不锈钢410的TIG焊接[J].现代焊接,2009(09):16-20. |
| [9] | A K Lakshminarayanan,V Balasubramanian.Evaluation of Microstructure and Mechanical Properties of Laser Beam Welded AISI 409M Grade Ferritic Stainless Steel[J].钢铁研究学报：英文版,2012(01):72-78. |
| [10] | Zahurul Islam S M;Ben Young .Ferritic stainless steel tubular members strengthened with high moduls CFRP plate subjected to web crippling[J].Journal of Constructional Steel Research,2012,77:107-118. |
| [11] | 孙智;霓宏昕;彭竹琴.现代钢铁材料及其工程应用[M].北京:机械工业出版社,2006 |
| [12] | 雍岐龙.钢铁材料中的第二相[M].北京:冶金工业出版社,2006 |
| [13] | 王立军,蔡庆伍,武会宾,余伟.回火温度对1500MPa级直接淬火钢组织与性能的影响[J].北京科技大学学报,2010(09):1150-1156,1162. |
| [14] | 周玉;武高辉.材料分析测试技术-材料X射线衍射与电子显微分析[M].哈尔滨:哈尔滨工业大学出版社,2007 |
| [15] | 余永宁;杨平;强文江.材料科学基础[M].北京:高等教育出版社,2006 |
| [16] | Chen, CY;Yen, HW;Kao, FH;Li, WC;Huang, CY;Yang, JR;Wang, SH .Precipitation hardening of high-strength low-alloy steels by nanometer-sized carbides[J].Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing,2009(1/2):162-166. |
| [17] | El-Bitar, T.;Gamil, M.;Mousa, I.;Helmy, F. .Development of carbon-Low alloy steel grades for low temperature applications[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2011(18):6039-6044. |
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%