Effects of Substrate Crystallographic Orientations on Microstructure in Laser Surface-Melted Single-Crystal Superalloy: Theoretical Analysis

IMR OpenIR

	Effects of Substrate Crystallographic Orientations on Microstructure in Laser Surface-Melted Single-Crystal Superalloy: Theoretical Analysis
	Wang, GW; Liang, JJ; Zhou, YZ; Jin, T; Sun, XF; Hu, ZQ; Zhou, YZ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
	2016-08-01
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
卷号	29 期号:8 页码:763-773
摘要	A geometric analysis technique for crystal growth and microstructure development in single-crystal welds had been previously developed. And the effect of welding conditions on the tendency of stray grains formation during solidification was researched. In the present work, these analytical methods were further extended. Combined with an original vectorization method, a 3D Rosenthal solution was used to determine thermal conditions of the welds. Afterward, the dendrite growth orientation, the dendrite growth velocity and the thermal gradient along dendrite direction were calculated and lively plotted. Finally, the tendency of stray grains formation in the solidification front was forecasted and its distribution was presented with a 3D plot. The results indicate that substrate orientation has some impacts on the crystal growth pattern, dendrite growth velocity, distribution of thermal gradient and stray grain. Based on the research methods proposed in this work, any substrate crystallographic orientation can be studied, and predicted stray grains distribution can be visualized.
部门归属	[wang, guo-wei ; liang, jing-jing ; zhou, yi-zhou ; jin, tao ; sun, xiao-feng ; hu, zhuang-qi] chinese acad sci, inst met res, shenyang 110016, peoples r china ; [wang, guo-wei] univ sci & technol china, sch mat sci & engn, hefei 230026, peoples r china
关键词	Single Crystal Laser Surface Remelting Weld Repair Modeling Stray Grains Distribution
学科领域	Metallurgy & Metallurgical Engineering
资助者	National Natural Science Foundation of China [51401210, 51271186]; National High Technology Research and Development Program of China [2014AA041701]
收录类别	sci
语种	英语
WOS记录号	WOS:000383635900010
引用统计	被引频次：12[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/321006/76313
专题	中国科学院金属研究所
通讯作者	Zhou, YZ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Wang, GW,Liang, JJ,Zhou, YZ,et al. Effects of Substrate Crystallographic Orientations on Microstructure in Laser Surface-Melted Single-Crystal Superalloy: Theoretical Analysis[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2016,29(8):763-773.
APA	Wang, GW.,Liang, JJ.,Zhou, YZ.,Jin, T.,Sun, XF.,...&Zhou, YZ .(2016).Effects of Substrate Crystallographic Orientations on Microstructure in Laser Surface-Melted Single-Crystal Superalloy: Theoretical Analysis.ACTA METALLURGICA SINICA-ENGLISH LETTERS,29(8),763-773.
MLA	Wang, GW,et al."Effects of Substrate Crystallographic Orientations on Microstructure in Laser Surface-Melted Single-Crystal Superalloy: Theoretical Analysis".ACTA METALLURGICA SINICA-ENGLISH LETTERS 29.8(2016):763-773.