[IS] International Session(2)　Cutting-Edge Science and Technology in Additive Manufacturing（2）

[IS18] Post-treatments of Laser Metal Deposited Inconel 738 LC Weld

*H.W. CHEN¹, M.S. LEU², *J.K. CHEN³ (1. National Taipei Univ. of Technology, Taiwan (Graduate Student), 2. Industrial Technology Research Institute, Taiwan, 3. National Taipei Univ. of Technology, Taiwan)

Keywords:Inconel 738 LC、Laser Metal Deposition (LMD)、Solutionization and Aging、Microhardness

γ' phase was inhibited in LMDed Inconel 738LC weld. Direct aging treatment increases the microhardness by 31% to 522.4 HV. Low temperature treatment can have less effects on the repair parts.