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Surface Engineering for Fatigue Life Enhancement

Organizers:

M. McElhone
Rolls-Royce plc
Derby, United Kingdom
Session 3: Other Processes
 

M. Shepard
Wright Patterson AFB
WPAFB, OH
Session 2: Gas Turbine Aerofoils/Fretting Fatigue on Compressor Discs
 

M. Winstone
DSTL Porton Down
Salisbury, Wiltshire, United Kingdom
Session 1: Introduction and Gas Turbine Aerofoils
 

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Overview:

Champion: M. R. Winstone, DSTL Porton Down, Salisbury, Wiltshire, United Kingdom Description: The fatigue and fretting life of highly stressed aerospace component is very sensitive to surface condition. Surface topography and residual stresses must be controlled to achieve the optimum life. Recent research has identified a range of surface engineering technologies that can increase fatigue life, reduce sensitivity to surface damage and achieve significant reductions in life cycle cost. Leading practitioners from industry, universities and research organisations will describe advances in surface processing and the modelling/understanding of surface engineering for the enhancement of fatigue life. Technologies to be highlighted include shot peening, low plasticity burnishing and laser shock peening for the control of surface residual stresses and coatings for the control of fretting damage. Novel technologies that promise enhanced performance at lower cost will also be addressed. Sessions will focus on practical applications to propulsion and airframe systems