金属学报  1985, Vol. 21 Issue (3): 7-148

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低碳马氏体钢的透射电镜分析

谈育煦

西安交通大学

TEM STUDY OF SIX REPRESENTATIVE LOW CARBON MARTENSITI STEELS

TAN Yuxu Xi'an Jiaotong University

谈育煦. 低碳马氏体钢的透射电镜分析[J]. 金属学报, 1985, 21(3): 7-148.
. TEM STUDY OF SIX REPRESENTATIVE LOW CARBON MARTENSITI STEELS[J]. Acta Metall Sin, 1985, 21(3): 7-148.

摘要 参考文献 相关文章 Metrics 全文: PDF(3425 KB)   摘要: 本文用透射电子显微镜研究了具有代表性的六种低碳马氏体钢的显微组织,结果表明:含碳量较低的马氏体钢(指0.1—0.25wt-%C),淬火后一般都存在薄膜状残余奥氏体,低碳马氏体钢淬火时不可避免有自回火现象,自回火沉淀出的碳化物是六方晶格的ε碳化物,六种钢都能找到具有局部孪晶亚结构的板条晶,低碳马氏体在350—400℃回火时,ε转化成Fe_3C;回火温度提高至500℃时,孪晶消失,但马氏体板条晶的轮廓在600℃时仍可维持原状. Abstract：Six representative low carbon martensitic steels were analyzed under TEM,Observations showed as follow:The thin retained austenite films usually exist in the structure of the low car-bon(namely,0.1—0.25 wt-%C)martensitic steels;ε-carbides formed in auto-tempering precipitate on the matrix of the lath mar-tensites;Internal twins exist in part of some lath matrix of the six steels;ε-carbides transform into cementites when tempered at 300-400℃.Cementitesform in three sites,lath boundaries,{110}_M planes and twin boundaries;Twins disappear when tempering temperature raise to 500℃ but the outlineof lath boundaries still keeps its original shape. 收稿日期: 1985-03-18      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 谈育煦 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1985/V21/I3/7 1 松田昭一;井上泰;三村宏;冈村义弘,钢の强韧性,日本铁钢学会,日本金属学会编,Climax Molybdenum Development Co.(Jpn) Ltd.,1971,p.45． 2 Naylor,J.P.,Metall.Trans.,10A(1979) ,861． 3 Sandvik,B.P.J.;Wayman,C.M.,Metallography,16(1983) ,199． 4 Clark,R.A.;Thomas,G.,Metall.Trans.,6A(1975) ,696． 5 Bhadeshia,H.K.D.H.;Edmonds,D.V.,Met.Sci.,13(1979) ,325． 6 Speich,G.R.;Leslie,W.C.,Metall.Trans.,3(1972) ,1043． 7 Chilton,J.M.;Kelly,P.M.,Acta Metall.,16(1968) ,637． 8 Raghavan,M.;Thomas,G.,Metall.Trans.,10(1979) ,1665． 9 弘津祯彦,热处理,14(1974) ,323． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed