Spark Plasma Welding of Austenitic Stainless Steel AISI 304L to Commercially Pure Titanium
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- 作者：N. Naveen Kumar ; G. D. Janaki Ram…
- 关键词：Dissimilar welding ; Stainless steel ; Titanium ; Spark plasma sintering
- 刊名：Transactions of the Indian Institute of Metals
- 出版年：2015
- 出版时间：September 2015
- 年：2015
- 卷：68
- 期：2-supp
- 页码：289-297
- 全文大小：5,347 KB
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G. D. Janaki Ram (1)
S. S. Bhattacharya (1)
H. C. Dey (2)
S. K. Albert (2)
1. Department of Metallurgical and Materials Engineering, IIT Madras, Chennai, 600 036, India
2. Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, India - 刊物类别：Chemistry and Materials Science
- 刊物主题：Materials Science
Metallic Materials
Materials Science, general
Tribology, Corrosion and Coatings - 出版者：Springer India
- ISSN：0975-1645
文摘
In modern fast-breeder nuclear power plants, on-site fusion welding of austenitic stainless steel AISI 304L and commercially pure titanium pipes is called for. The application imposes stringent requirements on these joints in terms of tensile strength, bend ductility, and corrosion resistance in boiling nitric acid. However, fusion welding of stainless steel to titanium directly is a near impossibility because of inevitable brittle intermetallic formation between iron and titanium and, consequently, serious weld cracking problem. All things considered, the best way to realize these joints is to make use of solid-state welded stainless steel/titanium (SS/Ti) dissimilar pipe joining inserts or adaptors. Towards this end, many solid-state welding techniques such as diffusion bonding, friction welding, and explosive welding have been tried in past, but without much success. In the current study, solid-state welding of SS rods to Ti rods was attempted in spark plasma sintering equipment. The potential of this new process, termed spark plasma welding, for dissimilar metal welding are discussed.