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Online Lecture by prof. Anne-Marie Habraken
A creep survey: from creep mechanism to macroscopic and microscopic models
April 18 @ 15:00 – 16:30 CEST
Leader of MSM team (Materials and Solid Mechanics) at ULiege, Belgium (Dpt of Architecture, Geology, Environment and Constructions)
Title:
A creep survey: from creep mechanism to macroscopic and microscopic models
Abstract:
At high temperature, metallic material creep is difficult to avoid. The understanding of the creep mechanisms helps metallurgists to design optimal alloy compositions and the prediction of a component life is a key input to manage safe maintenance and to define operational cost of any production line (solar plant parts, heat exchanger, any turbine parts loaded at high temperature…).
This lecture will review the creep mechanisms usually present in materials such as Incoloy 718,
Fe-Ni-Cr Incoloy® 800H alloy, A230 alloy or martensitic 9–12% Cr steels. Macroscopic constitutive laws used within FE simulations, quantitative physical standalone models and multiscale ones will be presented. The identification methodology will be shortly addressed. Ongoing AID4Greenest European project goals dealing with 30CrMoNiV5-11 steel will be presented.
This session was chaired by prof. Leo Kestens (Ghent University).