Weldability of 9Cr-ODS and JLF-1 Steels for Dissimilar Joining with Hot Isostatic Pressing and Electron Beam Welding*)

被引：0

作者：

Fu, Haiying ^{[1
]}

Nagasaka, Takuya ^{[1
,2
]}

Muroga, Takeo ^{[1
,2
]}

Guan, Wenhai ^{[3
]}

Nogami, Shuhei ^{[3
]}

Hasegawa, Akira ^{[3
]}

Serizawa, Hisashi ^{[4
]}

机构：

[1] SOKENDAI (The Graduate University for Advanced Studies), 322-6 Oroshi-cho, Toki

[2] National Institute for Fusion Science, 322-6 Oroshi-cho, Toki

[3] Tohoku University, 6-6-01-2 Aramaki-aza-Aoba, Aoba-ku, 980-8578, Sendai

[4] Joining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaraki

来源：

Plasma and Fusion Research | 2015年 / 10卷

关键词：

electron beam welding; hot isostatic pressing; joining strength; post-weld heat treatment;

D O I：

10.1585/pfr.10.3405015

中图分类号：

学科分类号：

摘要：

Dissimilar joints between 9Cr-ODS and JLF-1 were fabricated by hot isostatic pressing (HIP) and by electron beam welding (EBW), respectively. Compared to the HIP at 1000◦C, HIP at higher temperatures of 1050◦C and 1100◦C is effective to improve the joining strength of the joints. All the as-HIPed joints fractured at the interface during tensile tests. 1050◦C-HIP showed the best joining strength and reduction of area. Post-weld heat treatment (PWHT) with normalization and tempering (N&T) could further improve the joining properties of the HIPed joints. The joints fractured outside the interface at the JLF-1 base metals. EBW showed better weld-ability than HIP, because the joint made by EBW did not fracture at the weld metal during tensile tests, but always fractured at JLF-1 side. However, the properties of the HIPed joints were improved after PWHT with N&T, and were comparable to that made by EBW. © 2015 The Japan Society of Plasma Science and Nuclear Fusion Research

引用

页码：1 / 4

页数：3

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