金属学报  1985, Vol. 21 Issue (1): 118-128

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低碳锰铌钢的热加工性能

李正升;郑芝兰;王培兴;张关云

上海钢铁研究所;上海钢铁研究所;上海钢铁研究所;上海钢铁研究所

ON THE HOT WORKABILITY OF LOW-CARBON Mn-Nb STEEL

LI Zhengsheng;ZHENG Zhilan;WANG Peixing;ZHANG Guanyun Shanghai Institute of Iron and Steel Research

李正升;郑芝兰;王培兴;张关云. 低碳锰铌钢的热加工性能[J]. 金属学报, 1985, 21(1): 118-128.
, , , . ON THE HOT WORKABILITY OF LOW-CARBON Mn-Nb STEEL[J]. Acta Metall Sin, 1985, 21(1): 118-128.

摘要 参考文献 相关文章 Metrics 全文: PDF(827 KB)   摘要: 用扭转实验方法,对低碳锰铌钢进行了研究.建立了幂函数形式的本构方程.确定了稳态流变应力与热塑性之间的关系.考虑到累积应变效应,对动态再结晶过程进行了初步研究.分析了温度、应变率、Nb(CN)沉淀对动态软化百分数的影响.动态再结晶过程中,激活能和应力指数的变化,在一定程度上反映了Nb(CN)的沉淀.定义(?)/(?)为沉淀指数,用以定量地说明温度,应变率对Nb(CN)沉淀过程的影响.此外,还对应变率敏感系数与温度,剪切应变之间的关系进行了研究. Abstract：The hot torsion tests on low-carbon Mn-Nb steel were carried out of the es-tablishment of the constitutive equation of the power function and of the deter-mination of the relationship between flow stress of a steady state and hot ductility.An approach to the process of dynamic recrystallization was also made after con-sideration in the effect of strain accumulation.The influences of temperature,strain rate,Nb(CN)precipitation on the dynamic fractional softening have beenanalyzed.During dynamic recrystallization,the variation of activation energy orstress exponent reflects the precipitation of Nb(CN)to a certain extent.The effectof temperature and strain rate on the Nb(CN)precipitation may be quantitativelyillustrated by(?) which is defined as so-called precipitation exponent.Furthermore,the correlation among the strain rate sensitivity,temperature and shear strain hasalso been studied. 收稿日期: 1985-01-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 李正升 郑芝兰 王培兴 张关云 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1985/V21/I1/118 1 Microalloying 75,Proc.of the Symp.,Oct.1-3,1975,Washington,D.C.,Sponsored by Union Carbide Corp.,etc,New York,Union Carbide Corp.,1977,p.2-192． 2 张作梅;李建华,金属学报,1(1956) ,87． 3 沈如璋;沈彼德;林有祚;王家禄;向德渊;叶崇发;李述创;栾凤英,钢铁,16(1981) ,№ 8,26． 4 Ed.Ballance,J.B.,The Hot Deformation of Austenite,New York,AIME,1977,p.1-409． 5 Sankar,J.;Hawkins,D.;McQueen,H.J.,Met.Technol.,6(1979) ,325． 6 Ouchi,C.;Okita,T.;Ichihara,T.;Ueno,Y.,Trans.Iron Steel Inst.Jpn.,20(1980) ,833． 7 Fields,D.S.;Backofen,W.A.,Proc.Am.Soc.Test.Mater.,57(1957) ,1259． 8 李正升;李缙继,金属和合金的变形抗力,《轧制理论文集》,冶金工业出版社,1982,p.299． 9 Sellars,C.M.;Tegart,W.J.McG.,Int.Metall.Rev.,17(1972) ,1． 10 Jonas,J.J.;Sellars,C.M.;Tegart,W.J.McG.,Int.Metall.Rev.,14(1969) ,1． 11 Tegart,W.J.McG.,Ductility,ASM,Metals Park,Ohio,1968,p.133． 12 Rossard,C.,The Microstructure and Design of Alloys,Proc.of the Conf.on the Strength of Metals and Alloys,3rd.Cambridge,Eng.,20-25 Aug.,1973,Sponsored by The Inst.Met.and the Iron and Steel Inst.,Vol.2,p.175． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed