研究了YG10硬质合金热冲击疲劳裂纹的形成机制。
The formation mechanism of thermal shock fatigue crack of cemented carbide YG10 was investigated.
热冲击疲劳裂纹的形成与微孔洞的形核、长大和连通有关。
The crack formation of thermal shock fatigue is related to the nucleation, growth and join of microvoid.
研究了金属陶瓷热冲击疲劳特性，重点探讨了裂纹的形成机制。
The thermal shock fatigue character of cermets has been studied and the formative mechanism of crack discussed in detail.
针对涡轮叶片的热冲击疲劳寿命实验，提出了一种新的对比实验方案和措施：将实验叶片和参照叶片组合在同一组试验叶栅上，并且在试验过程中定期对调两种叶片的安装位置。
A new comparative test approach is provided for the thermal fatigue life experiments of turbine blade under thermal shock. The tested blades and reference blades were mounted in a common vane cascade.
铸钢作为冷却壁的材料具有良好的冲击韧度和耐热疲劳性能，并且结构上完全去除了球墨铸铁冷却壁的防渗碳涂层和冷却水管与本体之间的间隙热阻。
Cast steel cooling stave has favorable impact toughness and cyclic-temperature loading fatigue, and it has no thermal resistance of coat and gas gap witch exist in ductile iron cooling stave.
结果表明，精铸热锻模的主要失效形式为热磨损、塑性变形、热疲劳裂纹、冲击疲劳破断和脆性断裂。
The results show that hot-forged cast dies take thermal wear, plastic deformation, thermal fatigue, impact fatigue fracture and brittle fracture as predominant failure patterns.
结果表明，精铸热锻模的主要失效形式为热磨损、塑性变形、热疲劳裂纹、冲击疲劳破断和脆性断裂。
The results show that hot-forged cast dies take thermal wear, plastic deformation, thermal fatigue, impact fatigue fracture and brittle fracture as predominant failure patterns.
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