Accommodation of Plastic Deformation by Ultrasound-Induced Grain Rotation

作者：Dutta R K^*; Petrov R H; Hermans M J M; Richardson I M

来源：Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science, 2015, 46A(8): 3414-3422.

DOI：10.1007/s11661-015-2910-8

Electron backscatter diffraction was used to investigate the softening effect in low-carbon steel [Fe-0.051C-0.002Si-0.224Mn-0.045Al (wt pct)] during tensile deformation with in situ ultrasonic treatment. A bimodal grain size distribution is observed with relatively small equiaxed grains with an average diameter of 10 mu m at the grain boundaries of large elongated grains. The formation of these relatively small equiaxed grains is interpreted in terms of dynamic recrystallization by lattice and sub-grain rotation.

• 出版日期2015-8