其冲击断口微观形貌由室温时的韧窝断口逐渐变为低温下的塑性沿晶断口。
The fracture appearance is dimple at room temperature, it changes into intercrystalline fracture at low-temperature.
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.
拉伸过程中形成的氧化物夹杂成为裂纹源，断口表现为沿晶断裂。
The fracture surface appeared intergranular crack, due to the oxide formed during tensile test.
结果表明：弹性垫圈断口为典型的沿晶断裂，在断裂的晶面上有细小的爪状纹和微孔。此为高强度钢氢脆断口的特征。
The result shows that it was the typical intergranular fracture, and there were scrappy claw and tiny pore in the fracture of crystal face.
随着时效时间的延长，拉伸断口逐渐由韧窝穿晶型向沿晶突脊型及沿晶韧窝型过渡。在固溶状态下，当拉伸应力超过届服强度以后，出现平直滑移带及交叉滑移带；
In the as-quenched condition, straight slip bands and cross slip bands are shown on the surface of specimens after tensile stress has reached the yield stress;
随着时效时间的延长，拉伸断口逐渐由韧窝穿晶型向沿晶突脊型及沿晶韧窝型过渡。在固溶状态下，当拉伸应力超过届服强度以后，出现平直滑移带及交叉滑移带；
In the as-quenched condition, straight slip bands and cross slip bands are shown on the surface of specimens after tensile stress has reached the yield stress;
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