In the transition area,new grains nucleate at the intersections of grain boundaries.During the competitive growth process,the grains with the inferior or...

• 多晶生长暂停拉伸时；新晶粒将在柱状晶顶部晶界夹角处形核并长大；而且新晶粒的晶格取向与原有晶粒的取向无关.