Volume 21 article 1082 pages: 384-391

Published: Jun 19, 2023

DOI: 10.5937/jaes0-38125

THE INFLUENCE OF ULTRASONIC IMPACT PEENing (UIP) ON THE MECHANICAL PROPERTIES AND FATIGUE LIFE OF THE AA1100 ALLOY

Adil Akram Mahmood 1
Adil Akram Mahmood
Affiliations
Department of mining Engineering, college of Petroleum and Mining engineering, university of Mosul, Mosul 41002, Iraq
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∙ Samer A Kokz 2 3
Samer A Kokz
Affiliations
University of Warith Al-Anbiyaa, College of Engineering, Karbala 56001, Iraq
Prosthetic and Orthotics Department, College of Engineering, University of Kerbala, Karbala,56001, Iraq
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∙ A. M. Mohsen 4
A. M. Mohsen
Affiliations
School of Engineering, Faulty of Innovation and Technology, Taylor's University, Subang Jaya, 47500, Malaysia
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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.

Keywords

aluminium alloys AA1100 ultrasonic impact peening fatigue characterization mechanical properties

Acknowledgements

The authors are very grateful to the University of Mosul / College of Engineering for their provided facilities, which helped to improve the quality of this work.

References

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2.      Mostafapor, A. and Mohammadinia, V., Mechanical Properties and Microstructure Evolution of AA1100 Aluminum Sheet Processed by Accumulative Press Bonding Process, Acta Metallurgica Sinica (English Letters), vol. 29, no. 8, pp. 735–41, August 1, 2016. DOI: 10.1007/s40195-016-0441-y