通过TMCP研究了低碳锰钢和添加微量Nb的低碳锰铌钢的组织和力学性能的影响因素.研究了Nb对实验钢显微组织和力学性能的影响.Nb的添加能够细化铁素体晶粒,促进铁素体转变,对贝氏体形成有一定的抑制作用.相对低碳锰钢来说,铌的加入减少了贝氏体的体积分数,贝氏体强化效果减弱,钢的屈强比升高.通过增加冷速和降低卷取温度,可以使低碳锰铌钢获得一定量的贝氏体,综合性能较佳.低碳锰铌钢的主要强化机制有细晶强化、贝氏体相变强化和析出强化.
参考文献
| [1] | Hurley P J;Muddle B C;Hodgson P D .Nucleation site for ultrafine ferrite produced by deformation of austenite during single2pass strip rolling[J].Metallurgical and Materials Transactions,2001,32A(06):1507. |
| [2] | 李维娟,杜林秀,张红梅,刘相华,王国栋.应变诱发铁素体相变对低碳钢晶粒细化的影响[J].钢铁研究学报,2000(05):36-39. |
| [3] | P.D.Hodgson;M.R.Hickson;R.K.Gibbs .ULTRAFINE FERRITE IN LOW CARBON STEEL[J].Scripta materialia,1999(10):1179-1184. |
| [4] | Hurley PJ;Muddle BC;Hodgson PD .Analysis and characterisation of ultra-fine ferrite produced during a new steel strip rolling process[J].Scripta materialia,1999(4):433-438. |
| [5] | 杨忠民,赵燕,王瑞珍,陈其安,车彦民,齐长发,杜明山.普通碳素钢超细晶临界奥氏体控轧工艺研究[J].钢铁,2001(08):43-47. |
| [6] | 董瀚,孙新军,刘清友,翁宇庆.变形诱导铁素体相变现象与理论[J].钢铁,2003(10):56-67,55. |
| [7] | Beynon J H;Gloss R;Hodgson P D .The production of ultrafine equiaxed ferrite in a low carbon steel and microalloyed steel by thermomechanical[J].Materials Forum,1992,16:37. |
| [8] | A.I. Fernandez;P. Uranga;B. Lopez .Dynamic recrystallization behavior covering a wide austenite grain size range in Nb and Nb-Ti microalloyed steels[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):367-376. |
| [9] | 徐平光,方鸿生,白秉哲,杨志刚.仿晶界型铁素体/粒状贝氏体复相组织的韧性[J].金属学报,2002(03):255-260. |
| [10] | LI Long;DING Hua;DU Lin-xiu et al.Effect of Mn content and TMCP on microstructures and mechanical properties of C-Mn steels[J].Iron & Steel,2005,40(zk):274-277. |
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%