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Revista mexicana de física
versão impressa ISSN 0035-001X
Resumo
RUBIO-GONZALEZ, C.; GARNICA-GUZMAN, A. e GOMEZ-ROSAS, G.. Relaxation of residual stresses induced by laser shock processing. Rev. mex. fis. [online]. 2009, vol.55, n.4, pp.256-261. ISSN 0035-001X.
The Laser shock processing (LSP) is a new surface treatment technique that induces a compressive residual stress field. This work examines the effect of cyclic loading and temperature on the stability of the stress field induced by LSP on 6061-T6 aluminum samples. Residual stress relaxation due to cyclic loading is reported for different stress amplitudes and temperatures. Due to the cyclic creep effect, the residual stress decreases linearly with the logarithm of the number of cycles, N.
Palavras-chave : Laser shock processing; residual stress relaxation; cyclic loading.