Investigation of Laser Surface Treatment on the Microstructure and Mechanical Properties of AlSiMn Alloy

Laser surface modiffication

  • Moera Gutu
  • Habtamu Beri Tufa
Keywords: Mechanical property; Laser remelting; Aluminum; Silicon

Abstract

This work investigates high-temperature properties of AlSiMn alloy after laser remelting by continuous mode COlaser energy. Substrate materials were prepared after solutionized heat- treated at 510oC for 5 h followed by artificially aged at 160oC for six hours. The result of the finding showed high improvement in mechanical properties by 80% of heat-treated samples. The formation of fine dendrite microstructure, rode like larger secondary dendrite and sound metallurgical bonded morphology played a great role. The maximum laser modified thickness of 2.23 mm was achieved.

Published
2020-01-10
How to Cite
Gutu, M., & Tufa, H. (2020). Investigation of Laser Surface Treatment on the Microstructure and Mechanical Properties of AlSiMn Alloy. Ethiopian Journal of Sciences and Sustainable Development, 7(1), 35-43. https://doi.org/10.20372/ejssdastu:v7.i1.2020.134
Section
Articles