铝含量对钢渗碳动力学和贝氏体相变动力学的影响
Influence of Aluminium Content on Carburization Dynamics and Kinetics of Bainite Transformation in Steel
摘 要
采用井式渗碳炉和Gleeble3500型热模拟试验机测试了4种不同铝含量贝氏体钢的渗碳动力学和贝氏体相变动力学, 研究了铝含量对其渗碳及贝氏体相变动力学的影响。结果表明: 该钢的渗碳动力学方程为ξ=e(11.3－QRT)τ0.5, 改变钢中铝含量对钢的渗碳动力学没有明显影响; 随钢中铝含量增加, 其贝氏体相变驱动力增大, 使贝氏体转变加快, CCT曲线向左上方移动。
贝氏体
相变
铝
动力学
carburization
bainite
transformation
aluminium
dynamics
Abstract
Using pit furnace and Gleeble3500 type thermal simulator to test the carburization dynamics and kinetics of bainite transformation in four Al-containing steels with different contents. The effect of Al content was studied. The results show that the carburization dynamics equation of the steel was ξ=e(11.3－QRT)τ0.5, there was no obvious effect of changing the Al content on the carburization dynamics. With the increase of the Al content, the kinetics of bainite transformation increased, which fastened the bainite transformation and shifted the CCT curves to left upper side.
中图分类号 TG161
所属栏目 试验研究
基金项目 国家杰出青年科学基金资助项目(50925522); 国家自然科学创新群体基金资助项目(50821001); 河北省杰出青年基金资助项目(E2009001632)
收稿日期 2010/12/17
修改稿日期 2011/8/2
网络出版日期
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备注闫志刚(1983-), 男, 江苏徐州人, 硕士研究生。
引用该论文: YAN Zhi-gang,ZHANG Fu-cheng,ZHANG Peng,ZHENG Chun-lei,LIU Feng-chao,ZHANG Ming. Influence of Aluminium Content on Carburization Dynamics and Kinetics of Bainite Transformation in Steel[J]. Materials for mechancial engineering, 2012, 36(1): 31～34
闫志刚,张福成,张朋,郑春雷,刘峰超,张明. 铝含量对钢渗碳动力学和贝氏体相变动力学的影响[J]. 机械工程材料, 2012, 36(1): 31～34
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参考文献
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【3】王锐, 刘宏, 韦永德.稀土对渗碳动力学及渗碳钢的组织和性能的影响[J]. 稀土, 1986(6): 41-44.
【4】QUIDORT D, BRECHET Y.The role of carbon on the kinetics of bainite transformation in steels[J]. Scripta Materialia, 2002, 47: 151-156.
【5】YANG J R, HUANG C Y, HSIEH W H, et al.Mechanical stabilization of austenite against bainitec reaction in Fe-Mn-Si-C bainitic steel [J]. Materials Transactions JIM, 1996, 37(4), 579-585.
【6】GIRAULT E, JACQUES P, RATCHEV P, et al.Study of the temperature dependence of the bainitic transfornlation rate in a muhiphase TRIP — asisted steel[J]. Materials Science & Engineering A, 1999, 273: 471-476.
【7】KONG Jun-hua, XIE Chang-sheng.Effect of molybdenum on continuous cooling bainite transformation of low-carbon microalloyed steel[J]. Materials & Design, 2006, 27(10): 1169-1173.
【8】李忠义, 张建, 柳得橹, 等. 1.20%铝冷轧TRIP钢的合金设计、工艺和力学性能[J]. 钢铁, 2010, 45(2): 78-94.
【9】MERTNS A, JACQUES P J, ZHAO L, et al.On the influence of aluminium and silicon contents on the kinetics of bainite transformation of intercritical austenite[J]. Journal De Physique. IV: JP, 2003, 112: 305-308.
【10】ZHANG F C, WANG T S, ZHANG P, et al.A novel method for the development of a low-temperature bainitic microstructure in the surface layer of low-carbon steel[J]. Scripta Mater, 2008, 59(3): 294-296.
【11】DE COOMAN B C.Structure-properties relationshio in TRIP steels containing carbide-free bainite[J]. Current Opinion in Solid State and Materials Science, 2004, 8(3): 285-303.
【12】SUH D W, PARK S J, OH C S, et al.Influence of partial replacement of Si by Al on the change of phase fraction during heat treatment of TPIP steels[J]. Scripta Materialia, 2007, 57(12): 1097-1100.
【13】马幼平.金属凝固原理及技术[M]. 北京: 冶金工业出版社, 2008.
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