The results show that the crack growth rate under high-low cycle complex fatigue load is greater than that under low cycle fatigue load, and so the fatigue life is obviously reduced.
结果表明：与纯低周载荷作用相比，高低周复合载荷下球墨铸铁的裂纹扩展速率明显加快，极大地降低材料的疲劳寿命。
The results show that fatigue, creep and oxidation damage always develops simultaneously during low cycle fatigue at high temperature.
试样的微观断口分析显示了在高温应变疲劳试验中同时存在疲劳、蠕变和氧化损伤。
The individual cycle-strain hysteresis loops were recorded, and the cycling response and high temperature low cycle fatigue life were obtained.
记录了各自的循环应力—应变滞后环，得出了试样的循环响应特征和各试样的高温低周疲劳寿命。
However, cracks initialized in the diffusion layer between substrate and bond coat when TBCs were tested with low cycle fatigue at high temperature.
而在高温低周疲劳条件下裂纹是在粘结层与高温合金基体的扩散层处。
It has been shown that the high cycle and the low cycle fatigue strength can be obviously improved by shot peening.
结果指出，喷丸引起表面形变层内的上述变化，能够有效地提高粉末合金高温下的高周和低周疲劳性能。
Based on the orthogonal test design, this paper studied the effect of low cycle stress, high-low cycle stress ratio , high cycle number and high cycle frequency on complex fatigue life.
在高低周复合疲劳研究中采用了正交试验设计的方法，并以此为基础综合研究了低周应力、高低周应力比、高周循环次数和高周循环频率对复合疲劳寿命的影响及其机理。
This paper presents a modification to the FMDF model for predicting high-temperature low-cycle fatigue life, which improves accuracy of the model and facilitates the application of it.
本文对预测高温低周疲劳寿命的FMDF公式作了改进，结果明显提高了精度，使其方便实用。
The method and step of the calculation of the low cycle fatigue for the high pressure rotor of a steam turbine are introduced and summarized.
本文推论并总结了对汽轮机高压转子进行低周疲劳计算的方法和步骤。
The accession of vanadium has shown a great effect on improvement of coordination between strength and ductility, sensitivity to strain aging and high strain and low cycle fatigue property.
微合金元素钒的加入有利于钢筋强度与塑性综合提高，降低钢筋应变时效敏感性，提高钢筋高应变低周疲劳性能。
The accession of vanadium has shown a great effect on improvement of coordination between strength and ductility, sensitivity to strain aging and high strain and low cycle fatigue property.
微合金元素钒的加入有利于钢筋强度与塑性综合提高，降低钢筋应变时效敏感性，提高钢筋高应变低周疲劳性能。
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