| 释义 |
- 准解理断裂：一种介于解理断裂和韧性断裂之间的断裂类型，具有解理断裂的平面特征和韧性断裂的形状特征。
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能源科学技术 准解理断裂 For notch bending specimens,ductile fracture is dominitaed at above -100℃,brittle quasi-cleavage fracture is domainated at -196℃. 在-100℃及以上温度时,此材料的缺口弯曲断裂形态为韧性断裂;在-196℃时,为脆性准解理断裂。 准解理断口 Macro-fracture surface of the fatigue specimens includes the crack initiation,the crack extension and the ultimate fracture,and presents obviously crack front edge. Micro-fracture surface presents typical quasi-cleavage fracture characterization. 其疲劳试样宏观断口包括裂纹萌生、裂纹扩展及最终断裂3个阶段,存在明显的裂纹前沿;微观断口具有典型的准解理断口特征。
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The results by SEM results show that AZ91D alloy by addition rare earth elements possess the features of quasi-cleavage fracture. 扫描电镜分析结果显示添加稀土的镁合金疲劳断口呈现出准解理断裂特征。 - 2
According to analysis result of tubes' cracks fracture observation, it proves that the fracture is quasi-cleavage fracture which is characterized by river pattern. 通过对管束大量电子断口的观察分析，证明了断口为准解理断裂，具有河流花样的特征。 - 3
The stress corrosion cracking sensitivity of the steel was low, and the fractography of its stress corrosion cracking showed transgranular and quasi-cleavage fracture with secondary cracks. 研究表明该钢具有较好的抗应力腐蚀性能，其应力腐蚀断裂形貌为穿晶、解理断裂，并有二次裂纹。
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