The effect of deformation temperature on recrystallization in a Ni-based single crystal superalloys

doi:10.1016/j.matdes.2022.111042

IMR OpenIR

	The effect of deformation temperature on recrystallization in a Ni-based single crystal superalloys
	Xiong, Wei 1,2; Huang, Zaiwang 1; Xie, Guang 2; Ge, Zhicheng 2,3; Wang, Xin 1; Lu, Yuzhang 2; Zheng, Wei 2; Lou, Langhong 2; Zhang, Jian 2
通讯作者	Xie, Guang(gxie@imr.ac.cn) ; Zhang, Jian(jianzhang@imr.ac.cn)
	2022-10-01
发表期刊	MATERIALS & DESIGN
ISSN	0264-1275
卷号	222 页码:18
摘要	A series of experiments have been carried out to investigate the effect of deformation temperature on the recrystallization of nickel-based single crystal superalloys using isothermal (compression) and non -isothermal (directional solidification) deformation. The recrystallization features induced by accumu-lated plastic strain in two temperature ranges (1300 & ndash;1150 degrees C and 600 & ndash;400 degrees C) are distinctly different from that induced by deformation in one temperature range (1300 & ndash;1150 degrees C). The different recrystallized features (area and number of grains) induced by isothermal deformation at temperatures ranging from room temperature to solidus can be attributed to different dislocation features, such as slip band, KW -lock, y/y & rsquo; interfacial dislocations and Low Angle Boundary. Microscopic observations disclose that inter-actions of multiple slip systems have higher tendency of recrystallization. A close view between deformed and recrystallized samples of different deformation temperatures reveals that the critical ker-nel average misorientation (KAM) to induce recrystallization is about 0.4 degrees. Furthermore, the number of recrystallized grains is proportional with the average KAM value based on the experimental measure-ments in a wide temperature range. Isolated recrystallized grains are observed at the stress concentration locations in the low plastic strain zone due to local high misorientation. (c) 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http:// creativecommons.org/licenses/by/4.0/). Superscript/Subscript Available
关键词	Single crystal superalloys Recrystallization Directional solidification Deformation temperature Compression
DOI	10.1016/j.matdes.2022.111042
收录类别	SCI
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000859855100001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：23[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/321006/175743
专题	中国科学院金属研究所
通讯作者	Xie, Guang; Zhang, Jian
作者单位	1.Cent South Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China 3.Inst Corros Sci & Technol, Guangzhou 510530, Peoples R China
推荐引用方式 GB/T 7714	Xiong, Wei,Huang, Zaiwang,Xie, Guang,et al. The effect of deformation temperature on recrystallization in a Ni-based single crystal superalloys[J]. MATERIALS & DESIGN,2022,222:18.
APA	Xiong, Wei.,Huang, Zaiwang.,Xie, Guang.,Ge, Zhicheng.,Wang, Xin.,...&Zhang, Jian.(2022).The effect of deformation temperature on recrystallization in a Ni-based single crystal superalloys.MATERIALS & DESIGN,222,18.
MLA	Xiong, Wei,et al."The effect of deformation temperature on recrystallization in a Ni-based single crystal superalloys".MATERIALS & DESIGN 222(2022):18.