%0 Journal Article
%T Deformation Mechanisms of Twinning-Induced Plasticity Steel under Shock-Load: Investigated by Synchrotron X-ray Diffraction
%J Quantum Beam Science | An Open Access Journal from MDPI
%D 2019
%R https://doi.org/10.3390/qubs3030015
%X As an ideal candidate material for automobiles, twinning-induced plasticity (TWIP) steels possess excellent formability, high strength and high energy absorption ability during collision. This is attributed to its deformation mechanism of mechanical twinning, resulting in a high work hardening rate. In the current study, deformation mechanisms of low-stacking fault energy TWIP steel, under different strain rates between 0.01/s to 1581/s, were investigated by high-energy X-ray diffraction. After compression, grains with {110}||compression direction became favourable. Higher intensity was observed near brass and A components in the selected orientation distribution function (ODF) section ( ¦Õ 2 = 45¡ã) for all the compressed specimens. The activity of twinning was found to be the highest in the specimens that had been compressed with medium¨Chigh strain rates (e.g., 100/s and 10/s), while the texture component related to slip had stronger intensity in the specimen deformed with a quasi-static strain rate (0.01/s). View Full-Tex
%U https://www.mdpi.com/2412-382X/3/3/15