It holds that main causes promoting crack on martensite stainless steel are gross martensite and crystal boundary carburet and secondary phase distributed along crystal boundary.

文章认，马氏体组织、晶界碳化物以及沿晶界分布“第二相”组织是促使马氏体不锈钢产生裂纹主要原因。

The crack initiates at stress concentration point in the root of weld, where has much more martenite, carbide and inclusion, and the serious hydrogen segregation.

裂纹在焊缝根部应力集中处萌生，该处马氏体含量比较，碳化物及夹杂物较多，氢偏聚现象严重。

The high wearing resistance of the samples after hydrocooling and air cooling was partially attributed to martensite transformation and work-hardening.

经水和空样具有高耐磨性重要原因是其在磨损过程中诱发了马氏体相变,出现加工硬化现象。

The structural parameter for austenitic phasetransformation has a great effect on the characteristic of martensitic transformation.

发现奥氏体相变结构参数对马氏体相变特性有很影响。