金属学报  1987, Vol. 23 Issue (3): 243-316

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定向凝固合金DZ-38G的滑移形变与断裂

尹万全;高薇;朱桂秋;胡壮麒

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

SLIP DEFORMATION AND FRACTURE OF DIRECTIONALLY SOLIDIFIED DZ-38G SUPERALLOY

YIN Wanquan; GAO Wei; ZHU Guiqiu; HU Zhuangqi (Institute of Metal Research; Academia Sinica; Shenyang) (Manuscript received 3 December. 1985; revised manuscript 11 June; 1986)

尹万全;高薇;朱桂秋;胡壮麒. 定向凝固合金DZ-38G的滑移形变与断裂[J]. 金属学报, 1987, 23(3): 243-316.
, , , . SLIP DEFORMATION AND FRACTURE OF DIRECTIONALLY SOLIDIFIED DZ-38G SUPERALLOY[J]. Acta Metall Sin, 1987, 23(3): 243-316.

摘要 参考文献 相关文章 Metrics 全文: PDF(2808 KB)   摘要: <正> 本文目的是研究定向凝固合金中滑移形变与显微组织的关系,并讨论定向凝固合金的微观结构及柱状晶晶界平直度对裂纹传播和断裂的影响。 Abstract：Directionally solidified DZ-38G superalloy was in situ observed under SEM in order to obtain a better understanding of its slip deformation and fracture process. The slips initiate in matrix and eutectic, and they are able to be transmitted by the eutectic. The slips on dendrite arms are much obvious than those in the interdendritic areas. The slip direction may slightly alter with the change of columnar grain orientation. The microcracks are prone to initiate at transverse grain boundarie, carbides on grain boundaries or eutectic/matrix interfaces. A microcrack usually propagates along a zig-zag path, and it is controlled by the maximum shear stress and tensile stress. The propagation of cracks is closely related to the straightness of columnar grain boundaries. 收稿日期: 1987-03-18      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 尹万全 高薇 朱桂秋 胡壮麒 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1987/V23/I3/243 1 徐永波,穆在勤,刘民治,杨淑华.科学通报,1981:26:1356 2 Yin Wanquan (尹万全), Su Huihe (苏会和), Tong Yingjie (佟英傑), Liu Minzhi (刘民治). Int. Syrup. on Microstructure and Mechani cal Behaviour of Materials, Oct. 1985, Xi'an, China, Sponsored by Xi'an Jiaotong University, 1985; 29 3 林栋梁,黄颂惠.材料科学与工程,1985;(1) :4 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed