Characterization of the residual stresses in spray-formed steels using neutron diffraction

SCRIPTA MATERIALIA

卷:100

Article

Lee, T. L.¹  Mi, J.¹  Zhao, S. L.²  Fan, J. F.²  Zhang, S. Y.³  Kabra, S.³  Grant, P. S.⁴ 

[1] Univ Hull, Sch Engn, Kingston Upon Hull HU6 7RX, N Humberside, England

[2] Baosteel Co Ltd, Adv Inst, Shanghai, Peoples R China

[3] Rutherford Appleton Lab, Sci & Technol Facil Council, ISIS Neutron Source, Didcot OX11 0QX, Oxon, England

[4] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

关键词: Neutron diffraction;    Residual stresses;    Spray forming;    Three-dimensional tomography;    Finite element analysis;   

DOI  :  10.1016/j.scriptamat.2014.12.019

来源: Elsevier

【 摘 要 】

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. Crown Copyright (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. This is an open access article under the CC BY license.

【 授权许可】

Free