Effect of post-weld heat treatment on the mechanical properties of CLAM/31 6L dissimilar joint

被引：16
作者：
Zhang, Junyu [1 ,2 ]
Huang, Bo [1 ]
Wu, Qingsheng [1 ]
Li, Chunjing [1 ]
Huang, Qunying [1 ]
机构：
[1] Chinese Acad Sci, Inst Nucl Energy Safety Technol, Key Lab Neutron & Radiat Safety, Hefei 230031, Anhui, Peoples R China
[2] Univ Sci & Technol China, Hefei 230027, Anhui, Peoples R China
来源：
FUSION ENGINEERING AND DESIGN | 2015年 / 100卷
关键词：
CLAM steel; Dissimilar metal welding; Post-weld heat treatment; Mechanical properties; ACTIVATION MARTENSITIC STEEL; RESEARCH-AND-DEVELOPMENT; CONCEPTUAL DESIGN; FUSION APPLICATION; MATERIAL SELECTION; CHINA; ITER; METAL; MICROSTRUCTURE; PROGRESS;
D O I：
10.1016/j.fusengdes.2015.06.194
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Dissimilar welding between China low activation martensitic (CLAM) steel and 316L austenitic stainless steel was investigated to achieve the reliable connection between test blanket modules (TBMs) and piping system in the international thermonuclear experimental reactor (ITER). The dissimilar joints were welded by tungsten inert gas (TIG) welding process with a filler material type-309. In order to stabilize the microstructure and improve die strength and toughness, post-weld heat treatments (PWHTs) of tempering at 740 degrees C, 780 degrees C and 820 degrees C, respectively, for 2 h were performed. The microstructure observation showed that tempering at 740 degrees C for 2 h was the preferable PWHT rule in this work. After the treatment, the hardening in heat affected zone (HAZ) on the CLAM steel side decreased remarkably. The tensile strength of the joint was roughly the same as that of the base metal. The impact toughness of HAZ on the CLAM steel side was 77% of that of the base metal. The absorbed energy of HAZ of 316L steel decreased by 93J, and that of weld metal (WM) was 110J after the treatment. (C) 2015 Elsevier B.V. All rights reserved.
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页码：334 / 339
页数：6
相关论文
共 25 条
[1]   Status of reduced activation ferritic/martensitic steel development [J].
Baluc, N. ;
Gelles, D. S. ;
Jitsukawa, S. ;
Kimura, A. ;
Klueh, R. L. ;
Odette, G. R. ;
van der Schaaf, B. ;
Yu, Jinnan .
JOURNAL OF NUCLEAR MATERIALS, 2007, 367 (SPEC. ISS.) :33-41
[2]   Microstructure and mechanical properties of dissimilar materials joints between T92 martensitic and S304H austenitic steels [J].
Cao, Jian ;
Gong, Yi ;
Zhu, Kai ;
Yang, Zhen-Guo ;
Luo, Xiao-Ming ;
Gu, Fu-Ming .
MATERIALS & DESIGN, 2011, 32 (05) :2763-2770
[3]   An overview of the welding technologies of CLAM steels for fusion application [J].
Chen, Xizhang ;
Huang, Yuming ;
Madigan, Bruce ;
Zhou, Jianzhong .
FUSION ENGINEERING AND DESIGN, 2012, 87 (09) :1639-1646
[4]   TBM Program implementation in ITER [J].
Chuyanov, V. A. ;
Campbell, D. J. ;
Giancarli, L. M. .
FUSION ENGINEERING AND DESIGN, 2010, 85 (10-12) :2005-2011
[5]   Selection of filler wire for and effect of auto tempering on the mechanical properties of dissimilar metal joint between 403 and 304L(N) stainless steels [J].
Das, C. R. ;
Bhaduri, A. K. ;
Srinivasan, G. ;
Shankar, V. ;
Mathew, S. .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2009, 209 (03) :1428-1435
[6]   Microstructure and creep characteristics of dissimilar T91/TP316H martensitic/austenitic welded joint with Ni-based weld metal [J].
Falat, Ladislav ;
Svoboda, Milan ;
Vyrostkova, Anna ;
Petryshynets, Ivan ;
Sopko, Martin .
MATERIALS CHARACTERIZATION, 2012, 72 :15-23
[7]   Mechanical properties of F82H/316L and 316L/316L welds upon the target back-plate of IFMIF [J].
Furuya, Kazuyuki ;
Ida, Mizuho ;
Miyashita, Makoto ;
Nakamura, Hiroo .
JOURNAL OF NUCLEAR MATERIALS, 2009, 386-88 :963-966
[8]   Recovery and recrystallization in modified 9Cr-1Mo steel weldments after post-weld heat treatment [J].
Gao, Qiuzhi ;
Di, Xinjie ;
Liu, Yongchang ;
Yan, Zesheng .
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 2012, 93-94 :69-74
[9]   Breeding blanket modules testing in ITER:: An international program on the way to DEMO [J].
Giancarli, L ;
Chuyanov, V ;
Abdou, A ;
Akiba, M ;
Hong, BG ;
Lässer, R ;
Pan, C ;
Strebkov, Y .
FUSION ENGINEERING AND DESIGN, 2006, 81 (1-7) :393-405
[10]   Progress in development of China Low Activation Martensitic Steel for fusion application [J].
Huang, Q. ;
Li, C. ;
Li, Y. ;
Chen, M. ;
Zhang, M. ;
Peng, L. ;
Zhu, Z. ;
Song, Y. ;
Gao, S. .
JOURNAL OF NUCLEAR MATERIALS, 2007, 367 :142-146
123