Prediction and measurement of residual stresses in quenched stainless-steel spheres

作者: S. Hossain , M.R. Daymond , C.E. Truman , D.J. Smith

DOI: 10.1016/J.MSEA.2004.02.014

关键词:

摘要: A finite element (FE) technique has been used to predict the residual and thermal stresses which occur during water quenching of solid stainless-steel (SS) spherical balls. The variations at different positions cross-sections, e.g. radial, axial tangential directions, have examined. Also, influence heat transfer coefficient, initial temperature hardening assumption on stress results investigated. show that high compressive along cooling surface. Moving away from surface, these begin decrease reverse their sign, near centre are tensile. Preliminary experiments carried out using spheres type 316L stainless steel. was recorded compared with simulations. surface were determined incremental centre-hole measurement technique. Neutron diffraction (ND) determine in sphere. paper compares measurements as well comparing measured history simulation. Overall there is good agreement between predicted stresses.

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