Texture Evolution and Dislocation Behavior in a Nickel-Based Superalloy during Hot Compression

doi:10.1002/adem.201900892

	Texture Evolution and Dislocation Behavior in a Nickel-Based Superalloy during Hot Compression
	Gao, Zexi 1; Jia, Zhi1,2 ; Ji, Jinjin 3; Liu, Dexue2 ; Guo, Tingbiao2 ; Ding, Yutian2
	2019-11-08
发表期刊	ADVANCED ENGINEERING MATERIALS
ISSN	1438-1656
卷号	22 期号:3
摘要	Texture evolution and dislocation behavior of Ni-based superalloys at various temperatures and strain rate of 1 s(-1) are studied using electron backscatter diffraction (EBSD) technique and transmission electron microscope (TEM). It can be concluded that no significant texture is formed at high deformation temperature, especially for the occurrence of completed dynamic recrystallization (DRX). In addition, texture weakening is easy to realize by conducting DRX process on the Ni-based superalloys, whereas a slight strengthening is observed during grain growth. Based on the TEM images, the original grain boundary with high orientation gradient at low temperature provides an excellent position for DRX nuclei, which is strongly related with the dislocation motion. Moreover, it is concluded that the dislocation behavior plays a significant role in the plastic deformation of the Ni-based superalloys. Herein, theoretical guidance for the application of nickel-based superalloys and furthermore enhancement of their plastic deformation properties is provided.
关键词	dislocations dynamic recrystallization grain boundaries nickel-based superalloys texture evolution
DOI	10.1002/adem.201900892
收录类别	SCI ; SCIE
语种	英语
资助项目	National Nature Science Foundation of China[51665032] ; Science Foundation for Distinguished Young Scholars of Gansu Province[18JR3RA134] ; Research Exploration Project for Postgraduate Students of Lanzhou University of Technology[256016][G0503022] ; Nation Natural Science Foundation of China[51664041]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000495093400001
出版者	WILEY-V C H VERLAG GMBH
EI入藏号	20194607686598
EI主题词	Nickel alloys
EI分类号	531 Metallurgy and Metallography - 531.1 Metallurgy - 548.1 Nickel - 548.2 Nickel Alloys - 641.1 Thermodynamics - 933.1.2 Crystal Growth
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/64133
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Jia, Zhi
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China; 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China; 3.Lanzhou Inst Technol, Sch Mat Engn, Lanzhou 730050, Gansu, Peoples R China
第一作者单位	材料科学与工程学院
通讯作者单位	材料科学与工程学院; 省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位	材料科学与工程学院
推荐引用方式 GB/T 7714	Gao, Zexi,Jia, Zhi,Ji, Jinjin,et al. Texture Evolution and Dislocation Behavior in a Nickel-Based Superalloy during Hot Compression[J]. ADVANCED ENGINEERING MATERIALS,2019,22(3).
APA	Gao, Zexi,Jia, Zhi,Ji, Jinjin,Liu, Dexue,Guo, Tingbiao,&Ding, Yutian.(2019).Texture Evolution and Dislocation Behavior in a Nickel-Based Superalloy during Hot Compression.ADVANCED ENGINEERING MATERIALS,22(3).
MLA	Gao, Zexi,et al."Texture Evolution and Dislocation Behavior in a Nickel-Based Superalloy during Hot Compression".ADVANCED ENGINEERING MATERIALS 22.3(2019).