Avaliação do campo de tensões residuais por difração de raios - X utilizando o método do sen²ψ em revestimentos metálicos do aço inoxidável E308-L

Melo, Raphael Henrique Falcão de; Santos, Marco Antônio dos; Maciel, Theóphilo Moura

doi:10.1590/s0104-92242013000100007

Cited by 2 publications

(1 citation statement)

References 6 publications

(6 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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

View full text Add to dashboard Cite

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.

show abstract