金属学报  1998, Vol. 34 Issue (9): 919-922

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TiAl合金细小全层片组织形成机理

张继;张志宏;石建东;邹敦叙;仲增墉

钢铁研究总院高温合金研究室;北京;100081;钢铁研究总院高温合金研究室;北京;100081;钢铁研究总院高温合金研究室;北京;100081;钢铁研究总院高温合金研究室;北京;100081;钢铁研究总院高温合金研究室;北京;100081

TRANSFORMATION MECHANISM OF FINE FULLY LAMELLAR MICROSTRUCTURE IN TiAl ALLOYS

ZHANG Ji; ZHANG Zhihong; SHI Jiandong; ZOU Dunxu; ZHONG Zengyong (Department of Superalloys; Central Iron and Steel Research Institute; Beijing 100081)Correspondent: ZHANG Ji; Doctor; Tel. (010)62181009; Fax: (010)62172725;E-mail: htmrd@public. bta.net.cn

张继;张志宏;石建东;邹敦叙;仲增墉. TiAl合金细小全层片组织形成机理[J]. 金属学报, 1998, 34(9): 919-922.
, , , , . TRANSFORMATION MECHANISM OF FINE FULLY LAMELLAR MICROSTRUCTURE IN TiAl ALLOYS[J]. Acta Metall Sin, 1998, 34(9): 919-922.

摘要 参考文献 相关文章 Metrics 全文: PDF(2032 KB)   摘要: 根据对细小全层片组织及其高温转变中间组织的金相和电镜观察分析结果，提出了一种新的双相钛铝合金全层片组织形成机理，即γ／α层片结构在α单相区温度下沿γ相基体中不同取向｛111｝γ惯习面成束形成，而后在冷却过程中转变为层片团细小的γ／α2全层片组织. 关键词 ： 双相钛铝合金,  细小全层片组织,  层片组织形成机理     Abstract：The fine fully lamellar (FFL) microstructure and intermedium microstructures in the process of forming FFL microstructure were examined under optical and transmission electronic microscopes. Based on the observation results, the transformation mechanism of FFL microstructure was analyzed and proposed as that the fine γ/α lamellar colonies form at the high temperature in the α single phase region through the precipitating of the α plates on the four equivalent habit planes {111}γ, in each γ matrix grain and then evolve to the γ/α2 lamellar colonies of the FFL microstructure. Key words： two-phase TiAl alloy    fine fully lamellar microstructure    mechanism of microstructure transformation 收稿日期: 1998-09-18      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 张继 张志宏 石建东 邹敦叙 仲增墉 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1998/V34/I9/919 1 Kim Y W, Dimiduk M JOM, 1991; 43(8): 40 2 Kim Y W Acta Metall, 1992 40: 1121 3 Chan K S, Kim Y W. Metall Trans, 1992 23A: 1663 4 张继,张志宏,邹敦叙,仲增墉.金属学报,1996,32A:1044(Zhang J,Zhang Z H,Zou D X,Zhong Z Y.Acta Metall Sin, 1996 32A:1663) 5 Zhang J, Zou D X, Wang Y, Zhang Z Y. In: Kim S W, Park S J eds. Proc 3rd IUMRS Int Conf in Asia, vol. 1, Seoul, Korea:MRS of Korea, 1995: 403 6 张继,马万青,邹敦叙,仲增墉,张志宏,曾梅光.金属热处理学报,1996;17(3):16(Zhang J,Ma W Q,Zou D X,Zhong Z Y,Zhang Z H,Zeng M G. Trans Met Heat Treat, 1996;17(3):16) 7 Yang Y S, Wu S K Scr Metall, 1990 24: 1801 8 Jones S A, Kanfman M J. Acta Metall Mater, 1993; 41: 387" [1] 张继;张志宏;邹敦叙;仲增墉. TiAl合金细小全层片组织断裂机理[J]. 金属学报, 1996, 32(10): 1044-1048. Viewed Full text Abstract Cited   Shared      Discussed