A utilização da difração de neutrões na determinação do perfil de tensões residuais em revestimentos por soldadura

Marques, Maria José; Batista, A. C.; Nobre, J. P.; Loureiro, A.; Rebelo-Kornmeier, Joana

doi:10.1590/s0104-92242013000200008

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2019

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“…One of the processes largely employed to manufacture cladded components is arc welding, owing to its low cost, high quality, and capability to overlay complex geometries. Clad is characterized by local inhomogeneous heating and cooling that generate residual stresses in a part 3,4 . The influence of residual stress on fatigue, corrosion resistance and stress corrosion cracking [5][6][7][8][9] is crucial toward understanding the importance of the residual stress state analysis in cladded components.…”

Section: Introductionmentioning

confidence: 99%

Study of Mechanical Behavior and X-Ray Elastic Constants of Nickel Alloy Weld Overlay

et al. 2019

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The study of nickel-based alloy 625 clad (weld overlay) by X-ray diffraction (XRD) is difficult and often impossible because of its coarse and anisotropic microstructure. In this work, a sample preparation including machining, grinding, and annealing was proposed to avoid this negative effect in XRD analysis. Electron backscatter diffraction and hardness testing were used to evaluate the microstructure of the surface and the inner region of a sample during its preparation. The proposed sample preparation allowed accurate determination of the Young's modulus and the Poisson ratio through XRD. The values obtained using a small bending fixture are 212 ± 2 GPa and 0.31 ± 0.01, respectively.

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Section: Introductionmentioning

confidence: 99%

Study of Mechanical Behavior and X-Ray Elastic Constants of Nickel Alloy Weld Overlay

et al. 2019

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A utilização da difração de neutrões na determinação do perfil de tensões residuais em revestimentos por soldadura

Abstract: Resumo A técnica de difração de neutrões é usada neste artigo para estudar amostras ferríticas, revestidas com aços inoxidáveis austeníticos

Cited by 1 publication

References 14 publications

Study of Mechanical Behavior and X-Ray Elastic Constants of Nickel Alloy Weld Overlay

Study of Mechanical Behavior and X-Ray Elastic Constants of Nickel Alloy Weld Overlay

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