|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Phase Transformations and Microstructural Evolution
||Nicholas J. Wengrenovich, Greg Olson
|On-Site Speaker (Planned)
||Nicholas J. Wengrenovich
Recent analysis has shown that steels with retained austenite are able to outperform standard martensitic steels when subjected to fragment simulating projectiles (FSP) in ballistic experiments. It has been shown that the dynamic deformation induces the austenite to martensite phase transformation through the mechanism of transformation induced plasticity (TRIP). To characterize this process, a series of fully austenitic, gamma prime precipitation strengthened steels have been computationally designed through a systems based approach and tested for its FSP ballistic limit. The TRIP steel shows a significant departure from the standard plugging mode of failure. Post-mortem analysis on the impact craters reveals multiple arrested adiabatic shear bands with evidence of a transformation zone of martensite around each band’s termination.
||Planned: A print-only volume