<strong>fcc</strong>和<strong>bcc</strong>钢板在超高速撞击下的微观组织差异

fcc和bcc钢板在超高速撞击下的微观组织差异

孙欢腾, 马运柱, 蔡青山, 王健宁, 段有腾, 张梦祥

Differential Microstructure Between fcc and bcc Steel Plates Under Hyper-Velocity Impact

SUN Huanteng, MA Yunzhu, CAI Qingshan, WANG Jianning, DUAN Youteng, ZHANG Mengxiang

图12 304不锈钢板撞击后穿孔附近的TEM表征结果

Fig.12 TEM characterizations of 304 stainless steel plate near the perforation
(a) HRTEM image
(b) high magnified image and fast Fourier transform (inset) of region 1 in Fig.12a (d

_{(1 \bar{1} \bar{1})}

—(

1 \bar{1} \bar{1}

) interplanar spacing, d

_{(11 \bar{1})}

—(

11 \bar{1}

) interplanar spacing)
(c) filtering image of region 1 in Fig.12a (Inset shows the atomic structure image of yellow grid area)
(d) fast Fourier transform spot calibration image of region 1 in Fig.12a
(e) martensitic nucleus and twin in austenite
(f) selected area electron diffraction pattern of region 2 in Fig.12e (Subscripts M and T represent matrix and twin, respectively)
(g) schematic of the d

_{(1 \bar{1} \bar{1})}

measurement