Everitt, S., Pang, H.T., Hide, N.J., Starink, M.J. and Reed, P.A.S.
A comparison of high temperature fatigue crack propagation in sub-solvus heat treated turbine disc alloys
At High Temperature Fatigue: Influences of Creep and Environment.
05 - 06 Dec 2006.
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This paper presents the results of high temperature fatigue tests carried out in air at 725°C on four different materials: N18, RR1000, Udimet 720Li (U720Li) and U720Li Large Grain (U720Li LG) variant. The influence of composition, sub-solvus heat treatments, together with varied cooling rates on grain size and gamma prime size and distribution on fatigue crack propagation behaviour are compared and contrasted.
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