About this Abstract |
Meeting |
Materials Science & Technology 2019
|
Symposium
|
Corrosion of Additively Manufactured Metals
|
Presentation Title |
The Effects of Laser Peening Parameters on the Corrosion and Hardness Properties of Ti6Al4V Alloy |
Author(s) |
Sharlotte Mamatebele Kubjane, Nana Arthur, Bathusile Masina, Patricia Popoola, Sisa Pityana |
On-Site Speaker (Planned) |
Nana Arthur |
Abstract Scope |
Due to its low density, high corrosion resistance and high strength to weight ratio, titanium and its alloys are widely used in aerospace applications.As a result the material is exposed to detrimental environment.An enhancement in surface integrity of the alloy could possibly prevent the materials from experiencing premature failure in these aggressive environments. One of the promising surface modification techniques for improving the properties of metals is laser shock peening. The present study investigated the effect of overlaps variations on the corrosion and hardness properties of laser printed Ti6Al4V samples. The observation made was that an increase in overlap led to an increase in the surface roughness of LSP treated samples, however little difference in corrosion rate of the treated and untreated samples was observed. Further characterization revealed that LSP treated samples observed an increase in microhardness and less pitting attack as compared to untreated samples as overlap was increased |