|About this Abstract
||Materials Science & Technology 2019
||Formability and Fracture of Metal Sheets
||Deformation Mode Effects on Austenite Stability of Quenched-and-Partitioned Steel Measured via X-ray Diffraction and Electron Backscattered Diffraction
||Jun Hu, Ana L. Araujo, Kavesary Raghavan, Grant Thomas
|On-Site Speaker (Planned)
Stability of retained austenite is an important consideration during metal stamping and subsequent crash performance in the next generation of advanced high strength steels. In this study samples from a 1000 MPa UTS retained austenite containing steel grade were deformed in several nominally linear strain paths including uniaxial compression, uniaxial tension, simple shear, plane strain and balanced biaxial. X-ray diffraction measurement of retained austenite is presented as a function of effective strain along the different strain paths to provide insight into strain path effects on austenite stability. Electron backscatter diffraction scans were obtained to provide information on microstructural evolution at different strain paths and strains. A plasticity model was also implemented to fit the strain path dependency of the transformation for future finite element simulation.
||Definite: At-meeting proceedings