|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing of Large-scale Metallic Components
||Wire Arc Additive Manufacturing of Stainless Steels: Kinetics Modeling of Phase Transformations Using Differential Scanning Calorimetry
||Md Moniruzzaman , Ali Nasiri, Amir Hadadzadeh
|On-Site Speaker (Planned)
Metal additive manufacturing (AM) is known as a breakthrough for the fabrication of components with enhanced mechanical properties. The AM processes are categorized into two main groups: powder bed fusion (PBF) and directed energy deposition (DED). The deposition rate in the DED processes is substantially higher than that in the PBF processes and the build volume is unconstrained. Therefore, large AM components could be fabricated using the DED processes within a reasonable period. One promising DED process is wire arc additive manufacturing (WAAM). In this study, SS410S and Fe-Cr-Ni-Al CX stainless steels were fabricated through WAAM. Both materials were characterized using differential scanning calorimetry (DSC) to analyze their phase transformations, including austenite reversion (in both) and precipitation (in CX). Both continuous heating and isothermal DSC curves were used to develop kinetics models. The findings of this study will provide significant insight into developing optimum heat treatment cycles for these materials.
||Additive Manufacturing, Iron and Steel, Phase Transformations