|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Advanced Characterization Techniques for Quantifying and Modeling Deformation
||Delayed Cracking and Earing Phenomena in Deep-drawn Stainless Steel Alloys: Interplay among Microstructure, Texture, Transformation Kinetics, Residual Stress, and Load Partitioning
||Peijun Hou, Yuan Li, Dongchul Chae, Yang Ren, Ke An, Hahn Choo
|On-Site Speaker (Planned)
The microstructure and residual stress are important factors that influence the formability and integrity of stainless steel alloys during a deep drawing process. In this work, the combined effects of grain morphology, texture, strain-induced transformation kinetics, residual stress, and load partitioning between ferrite and austenite on the cracking or earing phenomena in various deep-drawn stainless steel (SS) alloy cups have been studied. Three different alloys, namely, stable austenite, metastable austenite (TRIP), and metastable duplex SS alloys, were investigated using synchrotron x-ray and neutron diffraction techniques for phase fraction, texture, and residual stress analyses in addition to basic microstructural, mechanical, and dimensional analyses. The earing and cracking behavior are then correlated to the chemical composition and constitutive properties of these SS alloys for the basic understanding of critical roles the key microstructural features play during the deep-drawing process.
||Planned: Supplemental Proceedings volume