The possibility of friction stir welding of high nitrogen-containing austenitic stainless steel

被引：0
|
作者：
Miyano Y. [1 ]
Fujii H. [2 ]
Sun Y. [2 ]
Ieko K. [3 ]
Katada Y. [4 ]
Kamiya O. [3 ]
机构：
[1] Faculty of Educational Systems and Studies, Akita University, Akita-city, AKITA, 1-1, Tegatagakuen-Machi
[2] Joining and Welding Research Institute, Osaka University, Suita, Osaka 565-0871
[3] Faulty of Engineering and Resource Science, Akita University, Akita-city, AKITA, 1-1, Tegatagakuen-Machi
[4] National Institute for Materials Science, Tsukuba-city Ibaraki 305-0047
来源：
International Journal of the Society of Material Engineering for Resources | 2010年 / 17卷 / 02期
关键词：
α; formation; Austenite; Butt-welding; Electro-slag remelting methods; Friction stir welding;
D O I：
10.5188/ijsmer.17.197
中图分类号：
学科分类号：
摘要：
To develop the practical use of high nitrogen-containing austenitic stainless steels (HNS), the possibility of using friction stir welding (FSW) of HNS was examined. In this report, butt-welding of 2 mm thick HNS steel plates was performed using a load-controlled FSW machine. Two types of welding tool materials were used in this study, namely, a Si3N4-based material and a WC-Co-based material. For FSW with Si3N4, fullpenetrated and defect-free butt welding joints were successfully produced. On the other hand, for FSW with WC-Co, the tool was deformed and the stir zone did not completely reach the bottom. The stir zone produced by the Si3N4 tool showed a Vicker's hardness higher than the base metal and displayed a fine microstructure due to recrystallization. The yield strength and the tensile strength of the welds produced by the Si3N4 tool exceeded that of the base metal. © 2010 Soc. Mater. Eng. Resour.
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页码：197 / 200
页数：3
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