Inclusion, gas holes and micro-crack can not be found in the welded joint. Further analysis of TEM indicates that substructures of acicular martensite are composed of cellular substructure and microtwinning.
进一步的接头TEM分析表明,组织中针状马氏体的亚结构由胞状亚结构和微孪晶组成。
参考来源 - 齿科钛金属的激光焊接性及接头应力有限元模拟