Effects of laser peening on residual stresses and fatigue crack growth properties of Ti–6Al–4V titanium alloy

• Published in: Optics and lasers in engineering Vol. 52; pp. 189 - 194
• Main Authors: Zhou, J.Z., Huang, S., Zuo, L.D., Meng, X.K., Sheng, J., Tian, Q., Han, Y.H., Zhu, W.L.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.01.2014
• Subjects: Compressive properties; Coverage rate; Crack propagation; Cross sections; Fatigue crack growth rate; Fatigue failure; Fracture mechanics; Laser peening; Lasers; Peening; Residual stress; Ti–6Al–4V titanium alloy; Ti–6Al–4V titanium alloy; Coverage rate; Fatigue crack growth rate; Residual stress; Laser peening
• ISSN: 0143-8166; 1873-0302
• DOI: 10.1016/j.optlaseng.2013.06.011

The effects of laser peening (LP) with different laser peening coverage rates on residual stresses and fatigue crack growth (FCG) properties of Ti–6Al–4V titanium alloy were investigated. Residual stresses after LP and micro-structure with different fatigue striation patterns on fracture cross-secti...