Fracture behaviour of Zr(Fe,Cr)2 Laves phase precipitates in Zircaloy-4 subjected to β forging

被引：5
|
作者：
Ali, Muhammad [1 ,2 ]
Han, Fuzhou [1 ,2 ]
Guo, Wenbin [1 ,2 ]
Ren, Jie [1 ,2 ]
Zhang, Yingdong [1 ,2 ]
Yuan, Fusen [1 ,2 ]
Wang, Qichen [1 ,2 ]
Hu, Jianan [1 ,2 ]
Liu, Chengze [1 ,2 ]
Gu, Hengfei [2 ,3 ]
Li, Geping [2 ]
机构：
[1] Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
[2] Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China
[3] Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2023年 / 952卷
关键词：
Zircaloy-4; Scanning; transmission electron microscopy (STEM); Laves phase; Fracture; STACKING-FAULTS; PARTICLES;
D O I：
10.1016/j.jallcom.2023.170007
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Fractured C14 (hexagonal close-packed) Laves phase Zr(Fe,Cr)2 precipitates were found in beta forged Zircaloy4. Transmission electron microscopy observations showed that the precipitates were initially a single entity and, during hot forging, underwent fracture along the planes where Peierls stress possibly exceeded fracture stress. Narrow interfacial width of a few nanometres and small misorientation angle in case of each fractured precipitate also implied that the precipitate retained brittle nature at high temperature. The fracture mainly occurred along the c-axes of Laves phase precipitates. (c) 2023 Elsevier B.V. All rights reserved.
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页数：6
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