Dynamic tensile behavior of laser-directed energy deposition and additive friction stir-deposited AerMet 100
Zackery McClelland,
Haley Peterson,
Kyle Dunsford
Abstract:Quasi-static and high-rate tensile experiments were used to examine the strain rate sensitivity of laser-directed energy deposition (L-DED)- and additive friction stir deposition (AFSD)-formed AerMet 100 ultrahigh-strength steel-additive manufactured builds. Electron backscattered diffraction (EBSD) revealed similar as-deposited grain sizes between the two AM processes at approximately 24 μm and 17 μm for the L-DED and AFSD samples, respectively. The strain hardening rate, θ, revealed little change in the over… Show more
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