Friction welding of TiNi alloy to stainless steel using Ni interlayer

被引：70

作者：

Fukumoto, S. ^{[1
]}

Inoue, T.

Mizuno, S.

Okita, K. ^{[2
]}

Tomita, T. ^{[3
]}

Yamamoto, A. ^{[4
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan

[2] Osaka Sangyo Univ, Osaka 5748530, Japan

[3] Hyogo Prefectural Inst Technol, Kobe, Hyogo 6540037, Japan

[4] Univ Hyogo, Grad Sch Engn, Himeji, Hyogo 6712201, Japan

来源：

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2010年 / 15卷 / 02期

关键词：

Friction welding; Austenitic stainless steel; Shape memory alloy; Interlayer; Reaction layer; SHAPE-MEMORY ALLOY; ALUMINUM;

D O I：

10.1179/136217109X12577814486692

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Friction welding was carried out between TiNi alloy and austenitic stainless steel with and without a Ni interlayer. When TiNi alloy was welded to stainless steel without the Ni interlayer, a large amount of brittle Fe2Ti intermetallic compound was formed at the weld interface. The formation of this brittle compound led to degradation of the joint strength. The Ni interlayer changed the microstructures at the weld interface and improved the joint strength. A fracture occurred at the interface between Ni and TiNi. The interface between Ni and TiNi was free from Fe2Ti and consisted of mainly TiNi3 and TiNi. After TiNi3 was formed as the reaction layer, a eutectic reaction occurred between the TiNi3 and TiNi base alloy. A reaction layer with a eutectic structure tends to form at the periphery, where the temperature would be higher than that of the central region.

引用

页码：124 / 130

页数：7

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