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Meeting 11th Conference on Trends in Welding Research + Additive Manufacturing (TWR+AM)
Symposium 11th Conference on Trends in Welding Research + Additive Manufacturing (TWR+AM)
Presentation Title Dissimilar Metal Laser Welding of 304L Stainless Steel and Ti-6Al-4V with Vanadium Directed Energy Deposition Interlayers
Author(s) Erin Barrick, Leah Mills, Daniel Leseberg, Austin Pisani, Landon Schnebly, Robert Craig, Pat Carrion, Amanda Jones
On-Site Speaker (Planned) Erin Barrick
Abstract Scope Dissimilar metal welding of stainless steel to titanium remains one of the most challenging combinations as direct welding is not feasible without the formation of brittle intermetallic phases. In this work, vanadium was utilized as an interlayer between 304L stainless steel and Ti-6Al-4V. Laser beam directed energy deposition (LB-DED) was used to fabricate interlayers to enable geometric flexibility of the interlayer; V sheet-insert interlayers will be compared to LB-DED interlayers. V deposited onto 304L resulted in the formation of sigma phase near the build plate/interlayer interface. Successful interlayers were achieved with V deposition onto Ti-6Al-4V and subsequent laser welding to 304L. Various laser welding processes and parameters were used to evaluate microstructure and mechanical properties. The results demonstrate the viability of vanadium as an interlayer for the stainless steel/Ti dissimilar combination with flexibility for multiple interlayer manufacturing processes. SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525
Proceedings Inclusion? Undecided

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