金属学报  1985, Vol. 21 Issue (3): 54-152

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碳素双相钢拉伸断裂过程的动态观察

沈显璞;雷廷权;刘剑壮

哈尔滨工业大学;哈尔滨工业大学;哈尔滨工业大学

THE SEM IN SITU OBSERVATION OF TENSILE FRACTURE PROCESSES IN PLAIN CARBON DUAL-PHASE STEELS

SHEN Xianpu;LEI Tingquan;LIU Jianzhuang Harbin Institute of Technology

沈显璞;雷廷权;刘剑壮. 碳素双相钢拉伸断裂过程的动态观察[J]. 金属学报, 1985, 21(3): 54-152.
, , . THE SEM IN SITU OBSERVATION OF TENSILE FRACTURE PROCESSES IN PLAIN CARBON DUAL-PHASE STEELS[J]. Acta Metall Sin, 1985, 21(3): 54-152.

摘要 参考文献 相关文章 Metrics 全文: PDF(4700 KB)   摘要: 在备有拉伸装置的扫描电镜下,连续观察了双相钢的微观断裂过程,并讨论了裂纹扩展条件及其影响因素,认为裂纹扩展是拉应力和塑性切应变综合作用的结果.采用位错塞积模型能较好地解释马氏体含量,马氏体含碳量及低温回火对裂纹萌生方式的影响.最后,从断裂特征角度分析了影响双相钢延性的因素. Abstract：The dynamic microprocesses of fracture in martensite-ferrite dual-phase steelswere observed by the in situ technique in SEM equipped with tensile platform.The mechanism of crack nucleation has been clarified.The conditions of crack prop-agation and affecting factors have been discussed.It is believed that the propaga-tion of the microcracks depends on the combined effect of both tensile stress andplastic shear strain.The dislocation pile-up model can be successfully used for ex-plaining the effect of the volume fraction of martensite,the carbon content in itand the low temperature tempering on crack nucleation.Furthmore,the factorsaffecting the ductility of dual-phase steels were analyzed according to the specificfeatures of fracture processes. 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 沈显璞 雷廷权 刘剑壮 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1985/V21/I3/54 1 Rashid,M.S.,Formable HSLA and Dual-Phase Steel,Ed.Davenport,A.T.,TMS-AIME,New York,1977,p.1． 2 Speich,G.R.;Miller,R.L.,Structure and Properties of Dual-Phase Steel,Eds.Kot,R.A.;Morris,J.W.,TMS-AIME,New York,1979,p.145． 3 Gerbase,J.;Emburry,J.D.;Hobbs,R.M.,ibid.,p.118． 4 Korzekwa,D.A.;Lawson,R.D.;Matlock,D.K.;Krauss,G.,Scr.Metall.,11(1980) ,1023． 5 Szewzyk,A.F.;Gurland,J.,Metall.Trans.,13A(1982) ,1821． 6 雷廷权;沈显璞;潘杰,钢铁,18(1983) ,№7,46． 7 雷廷权;沈显璞,金属学报,18(1982) ,75． 8 Kim,N.J.;Thomas,G.,Metall.Trans.,12A(1981) ,483． 9 Stevenson,R.,Formable HSLA and Dual-Phase Steel,Ed.Davenport,A.T.,TMS-AIME New York 1977,p.99． 10 徐永波;刘民治,金属学报,18(1982) ,58． 11 Tamura,I.;Tomota,Y.;Akao,A.;Yamaoka,Y.;Ozawa,M.;Kanoton,S.,Trans.Iron Steel Inst.Jpn,13(1973) ,283． 12 Davies,R.G.,Metall.Trans.,9A(1978) ,671． 13 Marder,A.R.;Bramfitt,B.L.,Structure and Properties of Dual-Phase Steel,Eds.Kot,R.A.;Morris,J.W.,TMS-AIME,New York,1979,p.242． 14 Stroh,A.N.,Proc.Phys.Soc.,B66(1953) 1． 15 哈宽富,金属力学性质的微观理论,科学出版社,1983,p.33． 16 Lei,T.C.(雷廷权);Shen,H.P.(深显璞),Paper Presented at the Fourth Risoe Int.Symp.on Metallurgy and Materials Science,Denmark,5-9 Sept.1983． 17 Araki K.;Takada,Y.;Nakaoka,K.,Trans.Iron Steel Inst.Jpn,17(1977) ,710．6 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed