The fracture surface appeared intergranular crack, due to the oxide formed during tensile test.
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 oxidation degree of grain boundaries and crack propagation are qualitatively analyzed based on crack density and percentage of intergranular crack.
用裂纹密度和晶界裂纹的比例对晶界氧化的程度及裂纹扩展情况定性地加以分析。
The results show that the precipitates on the grain boundaries and precipitate free zone (PFZ) were the main factor to enhance the intergranular crack of the alloy.
结果发现，时效造成的沿晶析出及伴随产生的沉淀物无析出带是促使合金发生沿晶开裂的主要因素。
The results show that the crack is formed by acting of center void and intergranular cracks. Some technic modifcation of the smelting process is raise to prevent nucleation of the cracks.
经检验分析认为这种裂纹是缩孔与晶间裂纹的结合体，并提出了一些解决方法。
Intergranular fracture. Fracture of polycrystalline materials by crack propagation along grain boundaries.
多晶材料裂纹沿着晶界扩展而断裂。
Micro characteristic of cracks propagation research: the path of crack propagation in the heat-affected zone and weld metal is the mix of transgranular and intergranular.
裂纹扩展的微观特征研究：在热影响区与焊缝区的裂纹扩展均为沿晶与穿晶混合型。
The chemical compositions, mechanical properties, solidification crack risistance and intergranular corrosion risistance of HT-105 electrode for welding of 690 alloy are introduced in this paper.
介绍了焊接690合金焊条HT-105的化学成分、力学性能、抗热裂性能和抗晶间腐蚀性能。
Intergranular carbide source is broken, so the mold when used as a front steel, intergranular carbides increased tendency to crack.
晶间碳化物是破裂源，因此，锋钢作为模具使用时，晶间碳化物增加裂纹倾向性。
Intergranular carbide source is broken, so the mold when used as a front steel, intergranular carbides increased tendency to crack.
晶间碳化物是破裂源，因此，锋钢作为模具使用时，晶间碳化物增加裂纹倾向性。
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