热浸渗铝钢中Al_4C_3相的晶体学特征  

The crystallographic features of Al_4C_3 phase in hot-dip aluminized steel

作　　者：文九巴[1] 张金民[1] 张伟[2] 张智强[3] 张永辉[3] 张海峰[3] 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471003 [2]洛阳工业高等专科学校材料系,河南洛阳471003 [3]洛阳船舶材料研究所电镜实验室,河南洛阳471039

出　　处：《材料热处理学报》2006年第2期75-78,共4页Transactions of Materials and Heat Treatment

基　　金：河南省高校杰出科研人才创新工程项目(2001kycx009)

摘　　要：利用透射电子显微镜(TEM)研究了热浸镀渗铝钢中Al4C3相的微观结构。结果表明,热浸渗铝钢中存在杆状和近似圆形状Al4C3相。发现Al4C3相以孪晶方式存在,六方晶系中存在以(003)面为孪晶面,以[001]方向为旋转轴的180°二次旋转孪晶。Al4C3相的(003)面平行于杆的长轴方向,[001]方向垂直于杆的长轴方向,杆的长轴生长方向为[210]。Al4C3相是以(003)为孪晶面,以[001]方向为旋转轴的180°二次旋转孪晶。The microstructure of Al_4C_3 phase in hot-dip aluminized steel was investigated by TEM.The results show that the Al_4C_3 phases in hot-dip aluminized steel are rod-shaped and approximately sphericized.The twinned Al_4C_3 phases exist in hot-dip aluminized steel.In hexagonal system, there is 180° secondary rotation twin with(003)as twinning plane and direction as twinning axis.The long axis direction of rod-shaped Al_4C_3 is parallel to(003) plane and perpendicular to direction.The long axis direction of rod-shaped Al_4C_3 is direction.The Al_4C_3 phases are 180° secondary rotation twins with(003)as twinning plane and direction as twinning axis.

关 键 词：热浸镀铝钢 Al4C3相 孪晶 六方晶系 

分 类 号：TG174.443[金属学及工艺—金属表面处理]