Base material properties for TRIP800 have been characterized under different automotive manufacturing and operating temperatures ranging from -40°C to 93°C, as well as strain rates ranging from 1/sec to 400/sec. Transformation kinetics for material points undergone high rate deformation has been quantified using a modified X-ray diffraction technique. The results clearly indicate the temperature dependency of the TRIP steel dynamic performance. At room temperature, the total elongation is around 33%, similar to those under quasi-static loading conditions. Under higher or lower temperature, however, TRIP800 has reduced ductility under dynamic loading.
Revised: January 17, 2008 |
Published: January 3, 2008
Citation
Sun X., E.V. Stephens, and M.A. Khaleel. 2008.STRAIN RATE AND TEMPERATURE DEPENDENT BEHAVIORS FOR TRANSFORMATION INDUCED PLASTICITY (TRIP) STEELS. In Mechanics & Mechanisms of Finite Plastic Deformation. 14th International Symposium on Plasticity & its Current Applications, Jan. 3-8, 2008, Kona, Hawaii, 247-249. Clarksville, Maryland:NEAT Press.PNNL-SA-58198.