Effect of shot peening and grain refinement on the fatigue life and strength of commercially pure Al and two of its alloys: Al-2024-T3 and Al-7075-T6

14th International Symposium on Advanced Materials

Qandil, A.^1 ; Zaid, Adnan I. O.^2

Civil Engineering Department, Faculty of Engineering, Applied Science Private University, Amman

11931, Jordan^1

Mechanical and Industrial Engineering Department, Faculty of Engineering, Applied Science Private University, Amman

11931, Jordan^2

关键词: Al and al;    Aluminum and its alloys;    Commercially pure Al;    Craft industry;    Effect of addition;    High strength;    Space vehicles;    Useful properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/146/1/012028/pdf
DOI  :  10.1088/1757-899X/146/1/012028

来源: IOP

【 摘 要 】

Aluminum and its alloys are widely used materials in automobile, aircraft and space craft industries due to their high strength- to- weight ratio and corrosion resistance beside their other useful properties. They are the second materials in use after steel alloys. Most of the failures in parts of aircrafts and space vehicles are mainly caused by fatigue and stress corrosion cracking. In this paper, the effect of shot peening on the fatigue life of commercially pure aluminumand two of its alloys namely:Al-2024 and Al-7075-T6 is presented and discussed. Furthermore, the effect of addition of vanadium to Al and Al grain refined by Ti and Ti+Bon Its fatigue life and strengthis also presented and discussed using scanning electron microscope, SEM. It was that shot peening and the addition of V toAl and Al onAl grain refined by Ti and Ti+B have resulted in enhancement of the fatigue life and strength. Ffinally, the effect of shot peening on the surface quality of the peened parts is also presented and discussed.