<strong>Fe-Mn-Al-C</strong>低密度高锰钢的晶粒尺寸对其低温变形的影响

Fe-Mn-Al-C低密度高锰钢的晶粒尺寸对其低温变形的影响

扬帆, 张宇琦, 潘嘉文, 陈俊

Effect of Grain Size on Cryogenic Deformation Behavior of a Low-density High-Mn Steel FeMnAlC

YANG Fan, ZHANG Yuqi, PAN Jiawen, CHEN Jun

图6 FG实验钢在-196 ℃拉伸变形后的典型TEM照片

Fig.6 Typical TEM images of the FG steel after tensile deformation at -196 ^oC. (a, b, d, f) Bright-field TEM images. (c, e) Selected area electron diffraction patterns obtained from the outlined regions A and B in Fig.6b and d, respectively. (g, j) High resolution TEM lattice fringe images of slip bands in Fig.6f. (h, k) Fast Fourier transform patterns of the Fig.6g and j. (i, l) One dimensional inverse fast Fourier transform lattice fringe images reconstructed using the ( $11 \bar{1}$ ) and ( $\bar{1} \bar{1} 1$ ) as well as ( $\bar{1} 1 \bar{1}$ ) and ( $1 \bar{1} 1$ ) reflections