Effects of initial microstructure on the grain boundary network during grain boundary engineering in Hastelloy N alloy
Cao, W; Xia, S; Bai, Q; Zhang, WZ; Zhou, BX; Li, ZJ; Jiang, L
2017
发表期刊JOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
卷号704页码:724-733
文章类型期刊论文
摘要Grain boundary engineering (GBE) was carried out on Hastelloy N alloy which is an important structural material used for molten salt reactor. The proportion of low Sigma coincidence site lattice (CSL) grain boundaries of the Hastelloy N alloy can be enhanced to more than 70% with the formation of large-size highly-twinned grain-cluster microstructure which was formed through extensive multiple twinning events during recrystallization. The effects of cold deformation amounts and subsequent annealing on the grain boundary character distribution (GBCD) were investigated. The effects of initial grain size and the primary carbide distribution which was affected by the content of silicon on the grain boundary network evolution were discussed. It was determined that the initial grain size and primary carbide distribution will affect the recrystallization kinetics and hence influence the formation of highly twinned grain-cluster microstructure and the GBCD. The particle stimulated nucleation (PSN) caused by the primary carbides has a detrimental effect on the promotion of low Sigma CSL grain boundaries. (C) 2017 Elsevier B.V. All rights reserved.
关键词Hastelloy n Grain Boundary Engineering Primary Carbide Particles Grain Boundary Network Distribution Particle Stimulated Nucleation
DOI10.1016/j.jallcom.2017.02.009
收录类别SCI
语种英语
WOS记录号WOS:000396950900090
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/27305
专题中科院上海应用物理研究所2011-2018年
推荐引用方式
GB/T 7714
Cao, W,Xia, S,Bai, Q,et al. Effects of initial microstructure on the grain boundary network during grain boundary engineering in Hastelloy N alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,704:724-733.
APA Cao, W.,Xia, S.,Bai, Q.,Zhang, WZ.,Zhou, BX.,...&Jiang, L.(2017).Effects of initial microstructure on the grain boundary network during grain boundary engineering in Hastelloy N alloy.JOURNAL OF ALLOYS AND COMPOUNDS,704,724-733.
MLA Cao, W,et al."Effects of initial microstructure on the grain boundary network during grain boundary engineering in Hastelloy N alloy".JOURNAL OF ALLOYS AND COMPOUNDS 704(2017):724-733.
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