去应力退火试样上发现了平行轧面的深沟，且沿晶开裂不明显。
The intergranular cracking in relieved-stress annealing samples is not obvious.
碘分压不仅影响腐蚀产物层的厚度，而且碘分压较高时沿晶开裂容易发生。
The partial pressure of iodine influents the thickness of corrosion products, and intergranular cracking is easier to be found when iodine partial pressure is high enough.
结果表明，造成主蒸汽滤网开裂的主要原因是晶界高温氧化，断口呈典型的沿晶开裂特征。
The results show that the main reason for the cracking was high temperature intergranular oxidation, with the fracture morphology being a typical intergranular cracking character.
应用推荐