In Situ Neutron Diffraction Study on the Mechanical Behavior of an Ultra-Fine-Grained Steel
The martensitic phase transformation in an ultra fine grained (UFG) TRIP (transformation induced plasticity) steel with combination of high strength and high elongation was investigated during room temperature tensile test using in situ neutron diffraction. Two types of specimens, namely coarse grained (grain size of about 50 μm) and ultra-fine-grained (grain size of about 350 nm) specimens were examined. The lattice strain evolution of the austenite and martensite phases was observed and the load partitioning between the phases was identified.
W. Reimers and S. Quander
K. X. Tao et al., "In Situ Neutron Diffraction Study on the Mechanical Behavior of an Ultra-Fine-Grained Steel", Materials Science Forum, Vols. 524-525, pp. 639-644, 2006