Characterization of the residual stresses in spray-formed steels using neutron diffraction. (15th April 2015)

• Record Type: Journal Article
• Authors: Lee, T.L.; Mi, J.; Zhao, S.L.; Fan, J.F.; Zhang, S.Y.; Kabra, S.; Grant, P.S.
• Is Part Of: Scripta materialia. Volume 100(2015)
• Page Start: 82
• Page End: 85
• Publication Date: 2015-04-15
• Subjects: Neutron diffraction -- Residual stresses -- Spray forming -- Three-dimensional tomography -- Finite element analysis; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2014.12.019
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract : Neutron diffraction was used to characterize the residual stresses in an as-sprayed tube-shaped steel preform. The measured residual stress distributions were compared with those simulated using finite element method by taking into account the effects of the thermal history, porosity and different phases of the sprayed preform. The porosity was measured using X-ray microcomputed tomography. The study revealed for the first time the correlation between the distribution of porosity and residual stress developed in the as-sprayed preform.