金属学报  1986, Vol. 22 Issue (3): 38-42

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超高强度钢中拉伸白点的形成

罗恩洲;刘民治;陈廉;肖耀天

中国科学院金属研究所;中国科学院金属研究所;中国科学院金属研究所;中国科学院金属研究所

FORMATION OF TENSILE FLAKE IN SUPER STRENGTH STEEL

by LUO Enzhou; LIU Minzhi; CHEN Lian; XIAO Yaotian (Institute of Metal Research; Academia Sinica; Shenyang)

罗恩洲;刘民治;陈廉;肖耀天. 超高强度钢中拉伸白点的形成[J]. 金属学报, 1986, 22(3): 38-42.
, , , . FORMATION OF TENSILE FLAKE IN SUPER STRENGTH STEEL[J]. Acta Metall Sin, 1986, 22(3): 38-42.

摘要 参考文献 相关文章 Metrics 全文: PDF(887 KB)   摘要: 本文采用慢拉伸、扫描电镜和离子探针等综合研究了30CrMnSiNi2A超高强度钢中拉伸白点的形成过程。结果表明:拉伸白点是钢在形变过程中形成的氢损伤,并对应一定的临界形变量ε_0~c。在等氢含量([H]=5.0cm~3/100g)和等应变速率(ε=3×10~(-5)/s)下,回火马氏体组织的ε_0~c=4.0％,下贝氏体组织的ε_0~c=5.0％。拉伸白点显微特征是氢脆的准解理断裂形态,白点表面的氢含量比基体的高。 Abstract：The process of tensile flake formation in super strength steel 30CrMnSiNi2A under tensile elongation at low strain rate was studied by SEM and IMMA. It is shown that the formation of tensile flake is from the dislocation transportation deduced hydrogen damage but not from the diffusion of hydrogen. The critical deformation, ε_o~c, forming tensile flake of tempered martensite or lower bainite of the steel is about 4.0 or 5.0% respectively under the same hydrogen content 5.0 cm~3/100g and same strain rate 3×10~(-5)/s. The microfeature of tensile flake is a fracture mode of quasi-cleavage with hydrogen tearing trace. A higher hydrogen content on the fracture surface of tensile flake than that of the matrix is indicated by IMMA. 收稿日期: 1986-03-18      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 罗恩洲 刘民治 陈廉 肖耀天 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1986/V22/I3/38 1 夏纬通;刘民治;陈廉,材料科学进展--纪念李薰逝世三周年,科学出版社,1986年,p.41-50． 2 刘民治;陈廉;尹万全;刘盛炎;苏会和;万耀光;柏森;陈泉浴;刘守箴等,中国金属学会1979-80年优秀论文选集,第四分册,冶金工业出版社,1984,p.21-55． 3 Oriani, R.A.; Josephic, P.H., Acta Metall., 22 (1974) , 1065． 4 Tien, J.K.; Thompson, A.W.; Bernstein, I.M.; Richards, R.J., Metall. Trans., 7 (1976) , 821． 5 徐祖耀,马氏体与马氏体相变,科学出版社,1980年. 6 Gibala, R., Demiglio. D.S., Hydrogen Effects in Metals, Proc. of the 3rd Int. Conf., Wyming, Eds. Bernstein, I.M.; Thompson, I.M., AIME, 1981． 7 Lee, J.Y.; Lee, J.L.; Choo, W.Y., Current Solutions to Hydrogen Problems in Metals, Proc. Conf. Washington D.C., 1982, p. 423． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed