Optimization of Surface Properties of Shot Peened TI6AL4V Alloy
Y. Yıldırana, E. Avcub, T. Sınmazçelika
aKocaeli University, Dept. Mech. Eng., 41285 Izmit, Turkey
bKocaeli University, Ford Otosan İhsaniye Automotive Vocational School, 41680 Kocaeli, Turkey
Full Text PDF
As an important surface treatment method, shot peening (SP) is widely used in automotive and aerospace industries in order to improve surface properties. In the present study SP was performed on the α-β titanium alloy Ti6Al4V under various parameters (particle impingement angle, particle acceleration pressure and particle size) by using a specially designed shot peening test rig. It is aimed to optimize surface roughness and hardness of the shot peened Ti6Al4V alloy under various parameters. In order to achieve this goal shot peened samples were investigated in detail by using a non-contact laser optical profilometer and surface hardness of the samples was measured by using a micro-hardness instrument. The surface roughness values, 3D surface morphologies and micro-hardness of the samples were obtained and examined. The results show that particle impingement angle, particle acceleration pressure and particle size dramatically affect the surface properties of the Ti6Al4V alloy.

DOI: 10.12693/APhysPolA.127.984
PACS numbers: 62.20.Qp, 81.65.-b, 81.05.Bx, 68.35.bd