From Lambda Technologies
The fretting fatigue performance of Ti-6Al-4V after
isothermal exposure was explored in test
coupons in low plasticity burnished (LPB), shot
peened (SP) and electropolished (ELP) baseline
conditions. The thermal stability of the
compressive residual stress fields produced by
SP and LPB was investigated. In the current
study, fretting fatigue data and fractography are
presented along with in-depth residual stress
profiles, both before and after the isothermal
exposure. Surface roughness data for each of the
three surface conditions are reported.
Topics of Interest
Low plasticity burnishing (LPB) is a surface enhancement method that produces a deep layer of compressive residual stress with minimal cold working and an improved surface finish. Extensive fatigue...
The deep stable layer of compressive residual stress produced by low plasticity burnishing (LPB) has been demonstrated to improve the damage tolerance in engine alloys IN718, Ti-6Al-4V, and 17-4PH.
Low Plasticity Burnishing (LPB) has been developed as a rapid, inexpensive surface enhancement method adaptable to existing CNC machine tools. LPB produces a deep layer of compression with minimal...
Mechanical surface treatments including shot peening (SP), laser shock peening (LSP) and low plasticity burnishing (LPB) have been shown to introduce compressive residual stresses that improve high...
Low plasticity burnishing (LPB) has been demonstrated to increase the damage tolerance of Ti- 6Al-4V fan blades by an order of magnitude. First stage Ti-6Al-4V fan blades were LPB processed using a...
