用应力松驰法研究微合金钢碳氮化物的应变诱导析出行为
Research on Strain-induced Precipitation Behavior in Microalloyed Steel by Stress Relaxation
摘 要
应用应力松驰法在Gleeble2000热力模拟机上研究了新型非调质油井管用钢33Mn2V在600~950 ℃内含钒碳氮化物的应变诱导析出行为.结果表明：该钢PTT曲线具有双“C”型特征,碳氮化物析出孕育期最短的温度分别约为850 ℃和600 ℃;析出相形貌主要为方形和圆角方形,其中方形颗粒是均热过程中未溶解的TiN,圆角方形颗粒是由钒、碳、氯原子以TiN为基底外延生长析出形成的TixV1-xCyN1-y.
钒
碳氮化物
析出
stress relaxation
vanadium
carbonitride
precipitation
Abstract
The strain induced precipitation behavior of steel 33Mn2V for oil well tubes in austenite region in the range of 600-950 ℃ was investigated by the stress relaxation method using Gleeble2000 thermal-mechanical simulator.The results show that the shape of precipitation-temperature-time (PTT) is a “double C” curve;the “nose” temperatures of the precipitation curve are about 850 ℃ and 650 ℃,respectively.Two types of precipitates in austenite,cubic and oblong ovate,were observed.The cubic particles are mostly TiN undissoved during reheating,while the oblong ovate precipitates are complex TixV1-xCyN1-y formed by V,C and N epitaxially growing on the substrate of TiN particle.
中图分类号 TG335.71 TG142.4
所属栏目
基金项目 国家自然科学基金资助项目(50271009)
收稿日期 2005/10/17
修改稿日期 2005/12/28
网络出版日期
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备注刘胜新(1968-),女,河北藁城人,副教授,博士.
引用该论文: LIU Sheng-xin,CHEN Yong,LIU Guo-quan,LI Qing-kui,NIU Ji-tai,GUAN Shao-kang. Research on Strain-induced Precipitation Behavior in Microalloyed Steel by Stress Relaxation[J]. Materials for mechancial engineering, 2006, 30(10): 84～87
刘胜新,陈永,刘国权,李庆奎,牛济泰,关绍康. 用应力松驰法研究微合金钢碳氮化物的应变诱导析出行为[J]. 机械工程材料, 2006, 30(10): 84～87
被引情况:
【1】陈建华,张喜燕,刘攀,蓝秀琼,刘兴智, "低碳微合金钢中碳化钛的等温析出行为",机械工程材料 38, 48-51(2014)
【2】方琪,董元,耿宽宽,孙伟,王家南, "含稀土高铌钢的等温弛豫行为",机械工程材料 40, 107-110(2016)
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参考文献
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【2】Liu W J,Jonas J J.A stress relaxation method for following carbonitride precipitation in austenite at hot working temperatures[J].Metallurgical Transaction A,1983,19A(6):1403-1413.
【3】牛济泰.材料热加工领域的物理模拟技术[M].北京:国防工业出版社,1999.
【4】王照东,曲锦波,刘湘华,等.松驰法研究微合金钢中碳氮化物的应变诱导析出行为[J].金属学报,2000,36(6):618-621.
【5】Liu S,Liu G,Zhong Y L,et al.Transformation characteristics and application of steel 33Mn2V for non-quenched/tempered oil-well tubes[J].Materials Science and Technology,2004,20:357-362.
【6】刘胜新.中碳微合金热轧非调质无缝油井管钢的组织演化规律研究[D].北京:北京科技大学,2004.
【7】Zajac S.Precipitation and grain refinement in vanadium-containing steels[A].International symposium 2001 on vanadium application technology[C].Beijing:Chinese Society for Metals,2001.62-82.
【8】龚维幂,杨才福,张永权,等.低碳钒氮微合金钢中V( C,N)在奥氏体中的析出动力学[J].钢铁研究学报,2004,16(6):41-46.
【9】Lagneborg R,Siwecki T,Zajac S,et al.The role of Vanddium in microalloyed steels[J].Scandinavian Journal of Metallurgy,1999,28:186-241.
【10】Sundman B,Jansson B,Andersson J O.Thermocalc databank system[J].Calphad,1985,(9):153-159.
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