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Erschienen in:
2018 | OriginalPaper | Buchkapitel
Development of a Friction Welded Bimetallic Joints Between Titanium and 304 Austenitic Stainless Steel
verfasst von : Muralimohan Cheepu, V. Muthupandi, B. Srinivas, K. Sivaprasad
Erschienen in: Techno-Societal 2016
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Abstract
Joining of dissimilar materials titanium to stainless steel combination has a particular interest in the nuclear and aerospace industry. Due to the metallurgical incompatibility, it is very difficult to produce reliable joints between these metals due to the formation of FeTi and Fe2Ti brittle intermetallic compounds. Friction welding is an attractive technique compared to conventional joining techniques of dissimilar metals since the heat input is very low and precision are very high. The present study uses the low heat input process friction welding, to insert a aluminum as a interlayer between titanium and stainless steel. Aluminum is compatible with the Ti and Fe, and it has a lower melting point than the two base metals. The joints produced revealed the intermetallic layers between the insert layer and both parent metals. The strength of the joints achieved maximum is 256 MPa and tensile fracture occurs along the intermetallic phases.