Effects of Laser Shock Peening on Mechanical Properties and Surface Morphology of AA2024 Alloy
American Journal of Mechanical and Materials Engineering
Volume 2, Issue 2, June 2018, Pages: 15-20
Received: May 29, 2018;
Accepted: Jun. 21, 2018;
Published: Jul. 21, 2018
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Samuel Adu-Gyamfi, Department of Mechanical Engineering, Sunyani Technical University, Sunyani, Ghana
Philip Agyepong Boateng, Department of Mechanical Engineering, Sunyani Technical University, Sunyani, Ghana
Enoch Asuako Larson, Department of Mechanical Engineering, Tamale Technical University, Tamale, Ghana
Philip Yamba, Department of Mechanical Engineering, Tamale Technical University, Tamale, Ghana
Anthony Akayeti, Department of Mechanical Engineering, Tamale Technical University, Tamale, Ghana
This paper presents the after effect of laser shock peening (LSP) on AA2024 alloy specimen irradiated with the L-Spiral scanning pattern at different pulse energies. The surface morphology indicates an increase in surface roughness after LSP. The X-Ray diffraction analysis of the LSP treated specimens were compared with the untreated specimen. The sin2Ψ method of the X-ray diffraction technique indicates an improvement in the magnitude of compressive residual stress distribution after LSP. The hardness profile after LSP also shows substantial increment. The results suggested an improvement in the microstructural structure owing to the ultra-high strain rate deformation and refined grains. The High Score Plus software is used to analyse the crystallite size and microstrain of the alloy treated by different pulse energies.
Philip Agyepong Boateng,
Enoch Asuako Larson,
Effects of Laser Shock Peening on Mechanical Properties and Surface Morphology of AA2024 Alloy, American Journal of Mechanical and Materials Engineering.
Vol. 2, No. 2,
2018, pp. 15-20.
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