Effect of post-weld heat treatment and neutron irradiation on a dissimilar-metal joint between F82H steel and 316L stainless steel

被引：15

作者：

Fu, Haiying ^{[1
]}

Nagasaka, Takuya ^{[1
,2
]}

Kometani, Nobuyuki ^{[3
]}

Muroga, Takeo ^{[1
,2
]}

Guan, Wenhai ^{[4
]}

Nogami, Shuhei ^{[4
]}

Yabuuchi, Kiyohiro ^{[4
]}

Iwata, Takuya ^{[4
]}

Hasegawa, Akira ^{[4
]}

Yamazaki, Masanori ^{[5
]}

Kano, Sho ^{[6
]}

Satoh, Yuhki ^{[6
]}

Abe, Hiroaki ^{[6
]}

Tanigawa, Hiroyasu ^{[7
]}

机构：

[1] SOKENDAI, Toki, Gifu, Japan

[2] Natl Inst Nat Sci, Natl Inst Fus Sci, Toki, Gifu 5095292, Japan

[3] Nagoya Univ, Nagoya, Aichi 4648601, Japan

[4] Tohoku Univ, Sendai, Miyagi 980, Japan

[5] Tohoku Univ, Inst Mat Res, Int Res Ctr Nucl Mat Sci, Sendai, Miyagi 980, Japan

[6] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 980, Japan

[7] Japan Atom Energy Agcy, Rokkasho, Japan

来源：

FUSION ENGINEERING AND DESIGN | 2015年 / 98-99卷

关键词：

F82H steel; 316L stainless steel; Electron beam welding; Post-weld heat treatment; Neutron irradiation;

D O I：

10.1016/j.fusengdes.2015.06.079

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：

A dissimilar-metal joint between F82H steel and 316L stainless steel was fabricated by using electron beam welding (EBW). By microstructural analysis and hardness test, the heat-affected zone (HAZ) of F82H was classified into interlayer area, fine-grain area, and coarse-carbide area. Post-weld heat treatment (PWHT) was applied to control the hardness of HAZ. After PWHT at 680 degrees C for 1 h, neutron irradiation at 300 degrees C with a dose of 0.1 dpa was carried out for the joint in Belgian Reactor II (BR-II). Compared to the base metals (BMs) and weld metal (WM), significant irradiation hardening up to 450HV was found in the fine-grain HAZ of F82H. However, the impact property of F82H-HAZ specimens, which was machined with the root of the V-notch at HAZ of F82H, was not deteriorated obviously in spite of the significant irradiation hardening. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：1968 / 1972

页数：5

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