高级检索
王宇飞, 张金民, 岳宗洪, 周浩, 韩顺昌, 宋琳. 321/Qd370qD爆炸焊接界面渗碳体的微观结构[J]. 焊接学报, 2009, (10): 86-88.
引用本文: 王宇飞, 张金民, 岳宗洪, 周浩, 韩顺昌, 宋琳. 321/Qd370qD爆炸焊接界面渗碳体的微观结构[J]. 焊接学报, 2009, (10): 86-88.
WANG Yufei, ZHANG Jinmin, YUE Zonghong, ZHOU Hao, HAN Shunchang, SONG Lin. Microstructure of cementite beside interface in 321/Qd370qD explosive welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (10): 86-88.
Citation: WANG Yufei, ZHANG Jinmin, YUE Zonghong, ZHOU Hao, HAN Shunchang, SONG Lin. Microstructure of cementite beside interface in 321/Qd370qD explosive welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (10): 86-88.

321/Qd370qD爆炸焊接界面渗碳体的微观结构

Microstructure of cementite beside interface in 321/Qd370qD explosive welding

  • 摘要: 利用透射电镜研究了321/Qd370qD爆炸焊接界面附近渗碳体的微观结构.结果表明,321/Qd370qD爆炸焊接界面奥氏体侧存在大量渗碳体,近界面处的渗碳体内存在大量亚片层,尺寸约几个纳米.这些亚片层相互平行,有的亚片层团互相交叉大约呈70.5°,亚片层团之间符合一定的晶体学取向关系,即相互之间满足绕110α方向旋转180°后或者绕002α方向旋转180°后相重合.如果在一个亚片层团的附近按上述关系生长出新的亚片层团,则其更容易形核与长大,且受阻力最小.相邻亚片层的晶体学取向关系可以推测应用到相邻珠光体团上,相邻珠光体团可能存在以上关系.

     

    Abstract: Cementite near the interface in 321/Qd370qD explosive welding is analyzed by transmission electron microscopy.The results show that there is a lot of cementite in austenitic side of the interface, and a lot of sub-lamellae exist in the cementite beside the interface.These sub-lamellae are about several nanometers and parallel each other.Some sub-lamella groups cross approximately 70.5° and accord with definite crystal tropism relation, which coincide each other when they circumrotate 180° with 110α as axis or with 002α as axis. Thus, a new sub-lamella group can easily grow beside another sub-lamella group.The crystal tropism relation of adjacent sub-lamellae may be applied to adjacent pearlite groups that maybe exist the above relation.

     

/

返回文章
返回