Creep resistance of Zr-Sn-Nb-Fe-Cr alloy

被引：3
作者：
Li, ZK [1 ]
Wang, WS
Zhang, JJ
Lian, Z
机构：
[1] Xi An Jiao Tong Univ, Xian 710049, Peoples R China
[2] NW Inst Nonferrous Met Res, Xian 710016, Peoples R China
来源：
PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5 | 2005年 / 475-479卷
关键词：
zirconium based alloy; creep; precipitate; dislocation cell;
D O I：
10.4028/www.scientific.net/MSF.475-479.1405
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The creep resistance of one kind of Zirconium based alloy with Niobium, Iron, Chromium, Tin alloying elements was investigated, the creep curve ( epsilon-t) was obtained in stress levels of 117MPa, 137MPa, 157MPa respectively by holding 200 hours at 400 degrees C. The results show that the creep resistance of this alloy is much better than that of Zircaloy-4. The microstructure of post- creep test was observed by TEM, which shows that the dislocation morphology is changed from dislocation lines to dislocation cells with strain increasing, and some precipitates grow larger. It is concluded that the creep is controlled by dislocation climb-glide diffusion mechanism.
引用
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页码：1405 / 1408
页数：4
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