Phase-field study on effects of antiphase domain and elastic energy on evolution of gamma ' precipitates in nickel-based superalloys

IMR OpenIR

	Phase-field study on effects of antiphase domain and elastic energy on evolution of gamma ' precipitates in nickel-based superalloys
	Yang, M.; Wei, H.; Zhang, J.; Zhao, Y.; Jin, T.; Liu, L.; Sun, X. F.; Zhang, J (reprint author), Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China.; Wei, H (reprint author), Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China.
	2017-03-01
发表期刊	COMPUTATIONAL MATERIALS SCIENCE
ISSN	0927-0256
卷号	129 页码:211-219
摘要	The effects of the antiphase domain (APD) and the elastic energy on the morphology evolution of gamma' precipitates in Ni-Al binary alloy during aging process are studied with the phase-field method. The merging-splitting phenomenon between the two neighboring gamma' precipitates is observed. The changes of gamma' area fraction and average 7' size are analyzed for different APDs and for different elastic energies, respectively. It is shown that the merging-splitting phenomenon may occur when the radii of neighboring gamma' precipitates with different APDs are smaller than 24 nm and the critical size for the merged gamma' precipitate splitting is about 108 nm. Besides, the coarsening of gamma' precipitates is significantly impeded by the APDs but accelerated by the elastic energy, and the change of average gamma' size can be divided into two stages with different mechanisms. (C) 2016 Elsevier B.V. All rights reserved.; The effects of the antiphase domain (APD) and the elastic energy on the morphology evolution of gamma' precipitates in Ni-Al binary alloy during aging process are studied with the phase-field method. The merging-splitting phenomenon between the two neighboring gamma' precipitates is observed. The changes of gamma' area fraction and average 7' size are analyzed for different APDs and for different elastic energies, respectively. It is shown that the merging-splitting phenomenon may occur when the radii of neighboring gamma' precipitates with different APDs are smaller than 24 nm and the critical size for the merged gamma' precipitate splitting is about 108 nm. Besides, the coarsening of gamma' precipitates is significantly impeded by the APDs but accelerated by the elastic energy, and the change of average gamma' size can be divided into two stages with different mechanisms. (C) 2016 Elsevier B.V. All rights reserved.
部门归属	[yang, m. ; zhang, j. ; liu, l.] northwestern polytech univ, state key lab solidificat proc, xian 710072, peoples r china ; [wei, h.] nanjing tech univ, coll sci mat & engn, nanjing 211800, jiangsu, peoples r china ; [wei, h. ; jin, t. ; sun, x. f.] chinese acad sci, inst met res, superalloys div, shenyang 110016, peoples r china ; [zhao, y.] shanghai univ, state key lab adv special steel, shanghai 200444, peoples r china
关键词	Antiphase Domain Elastic Energy Gamma ' Precipitates Coarsening Phase-field Methods
学科领域	Materials Science, Multidisciplinary
资助者	National Natural Science Foundation of China [51331005, 51071164, 51371173, 5140118]; Research Fund of State Key Laboratory of Solidification Processing in NWPU [SKLSP201318]
收录类别	SCI
语种	英语
WOS记录号	WOS:000394065000025
引用统计	被引频次：37[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/78267
专题	中国科学院金属研究所
通讯作者	Zhang, J (reprint author), Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China.; Wei, H (reprint author), Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Yang, M.,Wei, H.,Zhang, J.,et al. Phase-field study on effects of antiphase domain and elastic energy on evolution of gamma ' precipitates in nickel-based superalloys[J]. COMPUTATIONAL MATERIALS SCIENCE,2017,129:211-219.
APA	Yang, M..,Wei, H..,Zhang, J..,Zhao, Y..,Jin, T..,...&Wei, H .(2017).Phase-field study on effects of antiphase domain and elastic energy on evolution of gamma ' precipitates in nickel-based superalloys.COMPUTATIONAL MATERIALS SCIENCE,129,211-219.
MLA	Yang, M.,et al."Phase-field study on effects of antiphase domain and elastic energy on evolution of gamma ' precipitates in nickel-based superalloys".COMPUTATIONAL MATERIALS SCIENCE 129(2017):211-219.