Solute segregation and nanoparticle dispersion induced super high stability in a bulk nanocrystalline W-based alloy

doi:10.1016/j.jmrt.2023.07.237

	Solute segregation and nanoparticle dispersion induced super high stability in a bulk nanocrystalline W-based alloy
	Zhang, T.2; Deng, H. W.2; Xie, Z. M.1; Zhuang, Y. W.2; Peng, S. Y.2; Hu, G.2; Lin, H.2
刊名	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
	2023-09-01
卷号	26
关键词	Super high thermal stability Irradiation resistance stability Grain boundary segregation In-situ formation of nanoprecipitation W-based alloys
ISSN号	2238-7854
DOI	10.1016/j.jmrt.2023.07.237
通讯作者	Zhang, T.(zhangtao@gzhu.edu.cn) ; Xie, Z. M.(zmxie@issp.ac.cn)
英文摘要	Improvement of the stability of nanocrystalline (NC) materials is always a challenge. In this paper, the high thermal stability is achieved in a representative NC W alloy by combining nano-segregation of Ti solute to W grain boundary (GBs), and in-situ formation of nano Ti-Zr-O particles, which provide both thermodynamic and kinetic stabilization effects through solute dragging and particle pinning. The recrystallization temperature of this bulk NC W alloy reaches up to 1600 degrees C, and these nanometric microstructures maintain stable under a long-time and high-temperature ordeal up to 1200 degrees C for 120 h. And its microhardness and micro-compressive yield strength are similar to 17.0 and 5.14 GPa, respectively. In addition, this bulk NC W alloy has high irradiation stability due to the high densities of stabled GBs and phase boundaries. This work demonstrates the possibility of attaining high-stability bulk NC materials in terms of segregation of solutes at GBs and in-situ formation of ultrafine nanoparticles with a coherent interface with the W matrix. (C) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
资助项目	National Key Research and Development Program of China[2022YFE03140000] ; National Key Research and Development Program of China[2019YFE03110200] ; R amp; D Program of Joint Institute of GZHU amp; ICoST[GI202109] ; R amp; D Program of Joint Institute of GZHU amp; ICoST[GI202110]
WOS关键词	TUNGSTEN ; KINETICS ; RECRYSTALLIZATION ; RESISTANCE ; BEHAVIOR ; DAMAGE
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:001071247200001
资助机构	National Key Research and Development Program of China ; R amp; D Program of Joint Institute of GZHU amp; ICoST
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/132540]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, T.; Xie, Z. M.
作者单位	1.Chinese Acad Sci, Key Lab Mat Phys, Inst Solid State Phys, Hefei 230031, Anhui, Peoples R China 2.Guangzhou Univ, Sch Phys & Mat Sci, Guangzhou, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zhang, T.,Deng, H. W.,Xie, Z. M.,et al. Solute segregation and nanoparticle dispersion induced super high stability in a bulk nanocrystalline W-based alloy[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2023,26.
APA	Zhang, T..,Deng, H. W..,Xie, Z. M..,Zhuang, Y. W..,Peng, S. Y..,...&Lin, H..(2023).Solute segregation and nanoparticle dispersion induced super high stability in a bulk nanocrystalline W-based alloy.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,26.
MLA	Zhang, T.,et al."Solute segregation and nanoparticle dispersion induced super high stability in a bulk nanocrystalline W-based alloy".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 26(2023).