The influence of ultrasonic impact peening (UIP) on the mechanical properties and fatigue life of the AA1100 alloy

Q3 Engineering Journal of Applied Engineering Science Pub Date : 2023-01-01 DOI:10.5937/jaes0-38125

A. Mahmood, Samer A. Kokz, A. Mohsen

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Abstract

The effects of ultrasonic impact peening (UIP) on the mechanical properties and fatigue strength of the AA1100 alloy were compared to those of the untreated alloy. The UIP technic is widely used in a variety of applications to increase the hardness, tensile strength, surface characteristics, and fatigue life of metals. Due to the plastic deformation of the surface layer, the UIP process generated compressive residual stresses in the metal's upper layers. Extensive investigations were carried out in order to determine the significant effect of the UIP process on the mechanical characteristics and fatigue life of the metal. According to the results of the experiment, the percentage of increase in ultimate tensile strength (UTS), yield stress, and hardness were 8 %, 7.05 %, and 9 %, respectively. A substantial improvement in fatigue life of the AA1100 alloy was seen as a result of this treatment when compared to the untreated samples. The results demonstrated that the UIP is a reliable approach for generating compressive residual stresses in the AA1100 alloys, which may have a favourable influence on the fatigue behaviour of the alloys.

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研究了超声冲击强化对AA1100合金力学性能和疲劳寿命的影响

比较了超声冲击强化(UIP)对AA1100合金力学性能和疲劳强度的影响。UIP技术广泛应用于各种应用中，以提高金属的硬度、抗拉强度、表面特性和疲劳寿命。由于表层的塑性变形，UIP工艺在金属上层产生压残余应力。为了确定UIP工艺对金属的机械特性和疲劳寿命的显著影响，进行了广泛的调查。实验结果表明，复合材料的极限抗拉强度、屈服应力和硬度分别提高8%、7.05%和9%。与未经处理的样品相比，经过这种处理的AA1100合金的疲劳寿命有了实质性的提高。结果表明，UIP是产生AA1100合金压残余应力的可靠方法，对合金的疲劳行为有良好的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Applied Engineering Science Engineering-Engineering (all)

CiteScore

2.00

自引率

0.00%

发文量

122

审稿时长

12 weeks

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