金属学报  1987, Vol. 23 Issue (4): 274-399

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Mg-5%Zn-Al合金时效过程的晶体学研究

徐根保;许顺生

中国科学院上海冶金研究所;中国科学院上海冶金研究所

A CRYSTALLOGRAPHIC INVESTIGATION ON THE AGE-HARDENING PROCESS OF Mg-5wt-%Zn-Al ALLOY

by XU Genbao; XU Shunsheng (S. S. Hsu) (Shanghai Institute of Metallurgy; Academia Sinica) (Manuscript received 18 January; 1986; revised manuscript 22 July; 1986)

徐根保;许顺生. Mg-5%Zn-Al合金时效过程的晶体学研究[J]. 金属学报, 1987, 23(4): 274-399.
, . A CRYSTALLOGRAPHIC INVESTIGATION ON THE AGE-HARDENING PROCESS OF Mg-5wt-%Zn-Al ALLOY[J]. Acta Metall Sin, 1987, 23(4): 274-399.

摘要 参考文献 相关文章 Metrics 全文: PDF(3580 KB)   摘要: X射线衍射、电子显微镜和硬度的研究结果表明。淬火态合金析出平行(0001)_(Mg)和{1010)Mg面的溶质原子聚集区.150和220℃的时效过程分别为:过饱和固溶体→β’_1→重溶→β’_2→β’_2→+β,和过饱和固溶体→β’_2→β’_2→+β.β’_1显二维和三维形态,而β’_2以垂直(0001)Mg面的一维细杆物析出.150℃时效初期析出β’_1,存在时间极短,后期β’_2和β长期共存.初步测定了β’_1和β’_2的结构参数及取向关系. 添加Al促进时效析出,并提高β’_2的热稳定性. Abstract：Plate-like solute atom clusters parallal to (0001)_(Mg) and {1010}_(Mg) planes have been observed in the as-quenched alloy. The age-hardening process of the alloy at 150℃ is: super-saturated solid solution→β_1'→redissolved→β_2'→β_2'+β; and that at 220℃ is: super-saturated solid solution→β_2'→β_2'+β. The results show that β_1' pocesses two-and three-dimensinal morphologies and β_2' is one-dimensional rod precipitates perpendicular to (0001)_(Mg) plane. β_1' particles precipitated out from the matrix at the initial stage of 150℃ aging, which exist only for a very short period. However, β_2' and β coexisted for a long time at the later stage. The structural parameters of β_1' and β_2' as well as their orientational relationships with the matrix have also been determined. The addition of Al promotes the age-hardening process and enchances the thermal stability of β_2'. 收稿日期: 1987-04-18      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 徐根保 许顺生 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1987/V23/I4/274 1 Sturkey L, Clark J B.J Inst Met, 1959/60; 88: 177 2 Murakami Y, Kawano O, Tamura H.Mem Fac Eng Kyoto Univ, 1962; 24 (1) : 93; (见Metallurgical Abstracts, 1962; 30: 192) 3 Clark J B. Acta Metall, 1965; 13: 1281 4 美馬源次郎,田中靖三.日本金属学会誌,1969;33:796 5 美馬源次郎,田中靖三.日本金属学会誌,1971;35:345 6 胡素辉,苏千武,许顺生.金属学报,1965;8;475 7 许顺生,苏千武.金属学报,1980;16:73 8 苏千武,许顺生.物理学报.1980;29:25 9 高橋恒夫,小岛陽,鹰西清。轻金属,1973;23:376 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed