Output details
12 - Aeronautical, Mechanical, Chemical and Manufacturing Engineering
University of Manchester : B - Mechanical, Aerospace and Manufacturing Engineering
Failure in Notched Tension Bars due to High-Temperature Creep: Interaction Between Nucleation Controlled Cavity Growth and Continuum Cavity Growth
The investigation concerns high-temperature creep rupture of nickel-based superalloys, used in aeroengines; in particular, the multi-axial stress sensitivity of nucleation and growth of grain boundary defects that cause creep failure. The research was underpinned by test data from the National Physical Laboratory[Loveday & Dyson]at low and high stresses. Theories accurately predict extremes of behaviour observed in the experiments. Research has been well-received by industries {e.g. Alsthom[Perrin] & Rolls-Royce[Garwood] } that will make use of the constitutive equations to predict life scenarios of the superalloy vanes and blades of jet engines.
