Influence of temperature field on residual stresses in age hardened 6061 aluminium alloy prepared by wire-arc additive manufacturing
Wire and Arc Additive Manufacturing (WAAM) offers a much high material deposition rate leading to the capability to manufacture large meter-scale components with lower cost. Age hardened aluminium alloys are widely used for this type of application because of their properties such as high specific strength combined with natural corrosion resistance. However, to date, no detailed studies on the residual stress development are available, especially as regard to AA6061. Notwithstanding, the optimization of this technology necessarily requires an in-depth knowledge of the residual stresses being built in the parts produced by WAAM as a function of the process parameters in order to ensure reliable performance. The present proposal aims to relate process parameters, microstructural features, residual stresses and mechanical properties in additively manufactured AA6061 which has never been achieved so far. We are applying for an allocation of 3 days of beam time on SALSA in order to investigate the stress field in aluminium walls produced by WAAM.
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DOUMENC Gautier; BENOIT Alexandre; CABEZA Sandra; COURANT Bruno; COUTURIER Laurent; GIRAULT Baptiste; GLOAGUEN David; MOYA HERNANDEZ Marie Jose; PAILLARD Pascal; PIRLING Thilo and PRIGENT Serge. (2019). Influence of temperature field on residual stresses in age hardened 6061 aluminium alloy prepared by wire-arc additive manufacturing. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-02-273
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