<p>Effect of post-weld heat treatment on a friction stir welded joint between 9Cr-ODS and CLF-1 steels</p>

doi:10.1016/j.matchar.2022.111868

IMR OpenIR

	Effect of post-weld heat treatment on a friction stir welded joint between 9Cr-ODS and CLF-1 steels
	Fu, Haiying 1; Chai, Zongjian 1; Han, Shilei 1; Liu, Danhua 1; Chang, Yongqin 2; Chen, Yuxiang 2; Li, Yanfen 3; Zhang, Jiarong 3; Xu, Yue 4; Zhang, Kuan 1; Liao, Hongbin 1; Wang, Xiaoyu 1; Chen, Jiming 1; Li, Pengyuan 1
通讯作者	Fu, Haiying(fuhy@swip.ac.cn) ; Li, Pengyuan(lipy@swip.ac.cn)
	2022-05-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	187 页码:9
摘要	Dissimilar-metals welding is essential to construction of a fusion reactor by using advanced blanket structural materials of oxide dispersion strengthened (ODS) steels. In the present study, Dissimilar-metals bonding between 9Cr-ODS and CLF-1 steels was carried out by friction stir welding (FSW). Effect of post-weld heat treatment (PWHT) on microstructure and bonding properties of the joint was investigated. The results show that, quenched martensite was found in the weld metal (WM) after FSW. PWHT at 740-800 C can recover the microstructure of the WM to tempered martensite. Mid-size particles and nano-particles were observed and analyzed in the WM. Besides, in the WM on the CLF-1 side, recrystallization was found after PWHT. As the PWHT temperature increased, the recrystallization width and grain size grew up. However, the recrystallization in the WM did not degrade but may be beneficial to the bonding properties of the joint due to support ductile deformation during mechanical tests. The recommend PWHT temperature is 740-760 ? for keeping the mechanical properties of the CLF-1 base metal (BM) as that before FSW.
关键词	Dissimilar-metals bonding Friction stir welding Post-weld heat treatment Recrystallization Mid-size particles Nano-particles
资助者	Nuclear Materials Technologies Innovation Center of National Defense-related Science and Technology Industries of China ; National Key Research and Development Program of China on the In-ternational Scientific Innovation Cooperation among Governments ; Sichuan Science and Technology Planning Program ; Southwestern Institute of Physics
DOI	10.1016/j.matchar.2022.111868
收录类别	SCI
语种	英语
资助项目	Nuclear Materials Technologies Innovation Center of National Defense-related Science and Technology Industries of China[ICNM2020ZH14] ; National Key Research and Development Program of China on the In-ternational Scientific Innovation Cooperation among Governments[2019YFE0191800] ; Sichuan Science and Technology Planning Program[2019YFH0129] ; Southwestern Institute of Physics[202101XWCXRZ001] ; Southwestern Institute of Physics[202102XWCXYD001] ; Southwestern Institute of Physics[202101XWCXRZ002]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:000793611800001
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：4[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/321006/173945
专题	中国科学院金属研究所
通讯作者	Fu, Haiying; Li, Pengyuan
作者单位	1.Southwestern Inst Phys, Ctr Fus Sci, 5 Huangjing Rd, Chengdu 610225, Peoples R China 2.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 10083, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 4.Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Peoples R China
推荐引用方式 GB/T 7714	Fu, Haiying,Chai, Zongjian,Han, Shilei,et al. Effect of post-weld heat treatment on a friction stir welded joint between 9Cr-ODS and CLF-1 steels [J]. MATERIALS CHARACTERIZATION,2022,187:9.
APA	Fu, Haiying.,Chai, Zongjian.,Han, Shilei.,Liu, Danhua.,Chang, Yongqin.,...&Li, Pengyuan.(2022). Effect of post-weld heat treatment on a friction stir welded joint between 9Cr-ODS and CLF-1 steels .MATERIALS CHARACTERIZATION,187,9.
MLA	Fu, Haiying,et al." Effect of post-weld heat treatment on a friction stir welded joint between 9Cr-ODS and CLF-1 steels ".MATERIALS CHARACTERIZATION 187(2022):9.