Anais Do Congresso Anual Da ABM 2017
DOI: 10.5151/1516-392x-30775
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Análise Do Alívio Térmico De Tensões Residuais Do Aço Sae 4140 Por Difração De Raios-X Fast in-Situ

Abstract: ResumoAs T R C (tensões residuais compressivas) induzidas por shot-peening (SP) podem ser relaxadas e redistribuídas sob cargas cíclicas mecânicas, térmicas e termomecânicas. O objetivo desta pesquisa é avaliar a redução da T R C por SP através da difração de raios-X fast in-situ (D RX in-situ) na superfície do aço SAE 4140 durante tempo (t) de patamar de t [s] = 54000 em três diferentes temperaturas (T) de T [K] = 423,16; 523,16 e 623,16. É investigada a relaxação de T R C por cargas térmicas, mantendo as am… Show more

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“…Full width at half maximum (FWHM) is the parameter of a curve or function relative to its width and is given by the difference between two extreme values of a free variable in which the function reaches half of the maximum value 39 . For Banazwski 40 , higher values of FWHM in XRD measurements indicate more plastic deformation, and are an indication of distortion 38 .…”
Section: Analysis Of the Comparison Between Residual Stresses And Fwhmmentioning
confidence: 99%
“…Full width at half maximum (FWHM) is the parameter of a curve or function relative to its width and is given by the difference between two extreme values of a free variable in which the function reaches half of the maximum value 39 . For Banazwski 40 , higher values of FWHM in XRD measurements indicate more plastic deformation, and are an indication of distortion 38 .…”
Section: Analysis Of the Comparison Between Residual Stresses And Fwhmmentioning
confidence: 99%