热疲劳性能优于球墨铸铁和灰铸铁。
活塞的热疲劳性能对柴油发动机的全寿命至关重要。
Thermal fatigue behavior of the piston is vital to the overall life-span of diesel engines.
热疲劳性能；
因此，表面化学镀钴磷的热疲劳性能高于原始材料的抗热疲劳性能。
The result show that the thermal fatigue properties of Co-P alloy coating is better than that of the original materials.
本文提出一种新的热疲劳损伤判据，用以评估金属材料的热疲劳性能。
In this paper a new criterion for thermal fatigue damage was proposed to evaluate the thermal fatigue performances of metallic materials.
并应用了热疲劳品质系数的概念，对灰铸铁的热疲劳性能进行了定性分析。
Adopting the concept of thermal fatigue quality factor, the thermal fatigue resistance of grey...
但是，陶瓷材料的致密化对其力学、抗热震和热疲劳性能有至关重要的影响。
But the densification of ceramic materials is vitally important to mechanical, thermal shock and fatigue properties.
本文研究了GH36与GH132两种高温合金的高温低周疲劳和热疲劳性能。
In this paper, the performances of elevated temperature low-cycle fatigue and thermal fatigue of two superalloys GH36 and GH132 are discussed.
由于奥氏体的隔离作用，裂纹的扩展得到有效抑制，其热疲劳性能得到大幅提高。
Due to the isolating effect of the austenite the expanding of the crack would be hindered efficiently, so the thermal fatigue property of the alloy was largely increased.
结果表明：氩气能有效降低渗层的硬度梯度，提高离子渗氮h 13钢的热疲劳性能。
The result shows that the argon gas can effectively decrease the hardness gradient and improve the thermal fatigue behavior of ion nitriding steel H13.
球铁经常使用在高温、低温循环的环境中，它的热疲劳性能被认为是最重要的性能之一。
The ductile iron is often used in high and low cyclic temperatures condition, its thermal fatigue property is regarded as one of the importantest material properties.
结果表明，激光表面钴合金化可获得含钴均匀的合金化层，高温硬度和热疲劳性能均有提高。
The results show that the high temperature hardness and the heat fatigue performance of alloying layer are improved.
对选作高速柴油机预燃室喷咀材料的八种耐热钢及高温合金的燃气热疲劳性能进行了试验研究。
The thermal fatigue resistance high temperature combustion gases of eight heat resistant steels and superalloys in fatigue properties were studied on test rigs heated by combustion flue gas.
结果表明：h13热锻模具钢经此工艺处理后，具有较高的硬度和热疲劳性能，延长了模具的使用寿命。
The results show that the H13 steel treated by new process has higher hardness and heat-fatigue property. The service life of hot-forge die is prolonged.
而等离子喷涂的WC涂层经过3次热震试验后就基本开裂和脱落。这充分说明了HVOF涂层具有非常高的抗热疲劳性能。
While the coating deposited by plasma spraying cracked and spalled primarily after endured 3 times thermal shock, which showed that HVOF coating had the excellent resistance ability to thermal shock.
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.
因此，考虑热老化对材料性能的影响可能得到更准确的疲劳寿命预报。
So considering thermal aging effect to rubber may give an accurately result to predict the fatigue life.
结果表明，显微组织、抗氧化、抗生长及热疲劳抗力等性能，均有显著的改善和提高。
The results indicated that the microstructure, mechanical properties, oxidation resistance, growth resistance and thermal fatigue resistance were improved obviously.
用非平衡统计的概念和方法建立微观机理与宏观性能相结合的热疲劳理论。
A non equilibrium statistical theory of thermal fatigue which connects microscopic mechanism with macroscopic properties is established.
由于表面热疲劳裂纹的产生，使得材料强度性能损伤大于断裂韧性损伤。
The strength loss is greaser than the fracture toughness loss, because ofthe surface cracks caused. by thermal fatigue.
通过显微组织观察、高温氧化性试验、生长试验以及热疲劳试验研究了低铬球墨铸铁的高温耐热性能。
Through the observation of microstructure, high temperature oxidation test, volume growth and thermal fatigue test, the high temperature heat-resistance of low chromium ductile iron was studied.
通过显微组织观察、高温氧化性试验、生长试验以及热疲劳试验研究了低铬球墨铸铁的高温耐热性能。
Through the observation of microstructure, high temperature oxidation test, volume growth and thermal fatigue test, the high temperature heat-resistance of low chromium ductile iron was studied.
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