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首页> 外文会议>International Conference on Materials Engineering and Science >Cumulative Thermal Fatigue Damage for Aluminum Alloy under Variable Stresses
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Cumulative Thermal Fatigue Damage for Aluminum Alloy under Variable Stresses

机译：可变胁迫下铝合金累积热疲劳损伤

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摘要

Thermal-Fatigue is the main reason for the failures of many components under high temperature and cylices loading. In this paper experimental tests were carried out in order to predate the life of thermal fatigue of aluminum alloy. Fatigue-temperature interaction have been performed on Aluminum alloy (6063-T6) under varying temperatures and stress ratio R=-1.It was founded that the number of cylices to be failed decrease with increasing temperatures and the fatigue strength was also decrease with temperatures according to a power law. In high temperature conditions, the service interaction between temperature and fatigue occurs and it cause significant reduction of the number of cyclic. It is founded that the reduction life ratio (NfEvaluated temperate /Nf-Room Temperature) increase when temperature raise.
机译：热疲劳是在高温和气筒负载下许多部件故障的主要原因。在本文中，进行了实验试验，以便预测铝合金的热疲劳寿命。在不同温度下的铝合金（6063-T6）上进行了疲劳温度相互作用，并且应力比R = -1。据成立，圆柱体的数量随着温度的提高而降低，疲劳强度也随温度降低而降低根据权力法。在高温条件下，发生温度和疲劳之间的服务相互作用，并且它导致循环数量的显着降低。结果，当温度升高时，减少寿命比（NFEVALUTED / NF-ROM-ROME）增加。

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