The dislocation helices might result from the cross slip of some segments on an initial screw dislocation from (111)plane to (112) plane.

• 普通位错形成这种螺旋状曲线是交滑移的结果，即原先在(111)密排面滑移的螺位错的部分位错段交滑移到(112)非密排面。