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, Zhi 1,2; Ji, Jinjin 3; Liu, Dexue 2; Guo, Tingbiao 2; Ding, Yutian 2
刊名	ADVANCED ENGINEERING MATERIALS
	2019-11-08
卷号	22 期号:3
关键词	dislocations dynamic recrystallization grain boundaries nickel-based superalloys texture evolution
ISSN号	1438-1656
DOI	10.1002/adem.201900892
英文摘要	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.
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
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000495093400001
状态	已发表
内容类型	期刊论文
源URL	[http://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
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).