Effect of Surface Roughness and Shot Peening Treatments on The Mechanical Properties of Aluminum Alloy 2024 – T4 | ||
| Engineering and Technology Journal | ||
| Article 6, Volume 32, Issue 10, October 2014, Pages 2386-2393 PDF (298.58 K) | ||
| DOI: 10.30684/etj.32.10A.6 | ||
| Authors | ||
| Alalkawi H. J. M; Ameer Tofan Shafiq; Mohammed khalouk al-azzawi | ||
| Abstract | ||
| The objective of the present paper is to investigate the effect of surface roughness on mechanical properties of aluminum alloy 2024-T4. This paper describes the effect of surface roughness at values of ( 0.1 , 3.5 , 8 ) μm on hardness and yield strength and also estimate the effect of shot peening on the yield strength at period time of ( 5 , 10 , 15 , 20 , 25 ) min. The obtained results show that the low roughness improved the mechanical properties by 15.7% and also the low roughness is better than the shot peening treatments by 5.3% because the low roughness make surface more coherent. Empirical equations are formulated based on the experimental results to evaluate the yield strength with the surface roughness and the hardness. Sy= 394.3 ( Ra + 1.35 ) -0.1356 Sy = 1 / 2.2227(10)-2 - 1.32(10)-4 HV | ||
| Keywords | ||
| Surface Roughness; Shot peening; Mechanical properties; Aluminum Alloy | ||
|
Statistics Article View: 336 PDF Download: 170 |
||