采用CCT-AY-Ⅱ型钢板退火模拟实验机对一种含钒TRIP800钢进行连续退火,研究了贝氏体区等温温度对试验钢的组织和力学性能的影响.利用SEM、TEM和EDS等微观分析方法对试验钢进行了组织结构和成分表征,利用XRD法测量残留奥氏体量,通过拉伸试验机测试试验钢的单轴拉伸性能.结果表明,随贝氏体区等温温度升高,贝氏体和残留奥氏体含量增加,伸长率与屈服强度先上升后下降,抗拉强度先下降后上升;经410℃等温处理后,TRIP800钢抗拉强度达890 MPa,伸长率高达29.29%,强塑积达26068 MPa·%,综合力学性能优异;含钒TRIP钢的主要析出物为V(C,N),且主要在软相铁素体中析出.
参考文献
[1] | Zackay V F;Parker E R;Fahr D et al.The enhancement of ductility on high-strength steels[J].Trans ASM Soc Mat,1967,60(02):252-259. |
[2] | 江海涛,唐荻,米振莉.汽车用先进高强度钢的开发及应用进展[J].钢铁研究学报,2007(08):1-6. |
[3] | 康永林.现代汽车板工艺及成形理论与技术[M].北京:冶金工业出版社,2009 |
[4] | O. Bouaziz;C.P. Scott;G. Petitgand .Nanostructured steel with high work-hardening by the exploitation of the thermal stability of mechanically induced twins[J].Scripta materialia,2009(8):714-716. |
[5] | Seung Chul BAIK;Seongju KIM;Young Sool JIN .Effects of Alloying Elements on Mechanical Properties and Phase Transformation of Cold Rolled TRIP Steel Sheets[J].ISIJ International,2001(3):290-297. |
[6] | Lee C G;Kim S;Oh C et al.Effects of heat treatment and Si addition on the mechanical properties of 0.1 wt% C TRIP-aided cold-rolled steels[J].ISIJ International,2002,42(10):1162-1168. |
[7] | E.V. Pereloma;K.F. Russell;M.K. Miller .Effect of pre-straining and bake hardening on the microstructure of thermomechanically processed CMnSi TRIP steels with and without Nb and Mo additions[J].Scripta materialia,2008(12):1078-1081. |
[8] | Sung-Joon KIM;Chang Gil LEE;Tae-Ho LEE .Effects of Copper Addition on Mechanical Properties of 0.15C-1.5Mn-1.5Si TRIP-aided Multiphase Cold-rolled Steel Sheets[J].ISIJ International,2002(12):1452-1456. |
[9] | S. JIAO;F. HASSANI;R.L. DONABERGER .The Effect of Processing History on a Cold Rolled and Annealed Mo-Nb Microalloyed TRIP Steel[J].ISIJ International,2002(3):299-303. |
[10] | De Cooman BC .Structure-properties relationship in TRIP steels containing carbide-free bainite[J].Current opinion in solid state & materials science,2004(3/4):285-303. |
[11] | E. V. Pereloma;I. B. Timokhina;P. D. Hodgson .Transformation behaviour in thermomechanically processed C-Mn-Si TRIP steels with and without Nb[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1999(0):448-452. |
[12] | Fabien PERRARD;Colin SCOTT .Vanadium Precipitation During Intercritical Annealing in Cold Rolled TRIP Steels[J].ISIJ International,2007(8):1168-1177. |
[13] | Scott C;Perrard F;Barges P.Microalloying with vanadium for improved cold rolled TRIP steels[A].Suzhou,China,2005:13-25. |
[14] | 刘宗昌;任慧平;宋义全.金属固态相变教程[M].北京:冶金工业出版社,2003 |
[15] | 周玉.材料分析方法[M].北京:机械工业出版社,2006 |
[16] | Sugimoto K.;Sakaguchi J. .Stretch-flangeability of a High-strength TRIP Type Bainitic Sheet Steel[J].ISIJ International,2000(9):920-926. |
[17] | 李振 .低碳中锰TRIP钢组织演变与锰配分规律[D].北京,2012. |
[18] | 兰纳伯格·R;等;杨才福;柳书平.钒在微合金钢中的作用[M].北京:钢铁研究总院,2000 |
[19] | Taylor K A .Solubility products for titanium-,vanadium-,and niobium-carbide in ferrite[J].Scripta Metallurgica et Materialia,1995,32(01):7-12. |
[20] | 齐俊杰;黄运华;张跃.微合金化钢[M].北京:冶金工业出版社,2006 |
[21] | 史文 .含钒低碳低硅相变诱发塑性钢的组织和性能的研究[D].上海大学,2006. |
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