Evaluation of Residual Stress Field by X-Ray Diffraction using the SenAI Method on E308l Stainless Steel Weld Overlays

1
R. H. F.
R. H. F.
2
Melo
Melo
3
Santos
Santos
4
M. A.
M. A.
5
Maciel
Maciel
6
T. M.
T. M.
1 Federal University of Campina Grande

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The application of metal coatings by welding of steels and alloys resistant to corrosion is an alternative quite reasonable economically facing the manufacturing of solid components in these alloys. However there is a lack of information about the mechanical / metallurgical changes caused by thermal cycles of welding due to the application of these coatings, especially about its influence on the level of residual stresses, that it is essential to understand the phenomenon of stress-assisted corrosion. The aim of this study was to evaluate the level of the superficial residual stresses in coatings of AWS E308L T-1 stainless steel applied by the FCAW process on steel plates of ASTM A36. The measurements of residual stresses were performed by a portable X -ray diffractometer on the surface of the coatings and the main results obtained were that the nature of residual stresses on the surface of the coatings always showed compressive and it was not observed linearity of the magnitude of the residual stresses as a function of the welding heat input.

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No external funding was declared for this work.

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The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

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R. H. F.. 2014. \u201cEvaluation of Residual Stress Field by X-Ray Diffraction using the SenAI Method on E308l Stainless Steel Weld Overlays\u201d. Global Journal of Research in Engineering - J: General Engineering GJRE-J Volume 14 (GJRE Volume 14 Issue J5): .

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Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

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v1.2

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December 23, 2014

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English

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The application of metal coatings by welding of steels and alloys resistant to corrosion is an alternative quite reasonable economically facing the manufacturing of solid components in these alloys. However there is a lack of information about the mechanical / metallurgical changes caused by thermal cycles of welding due to the application of these coatings, especially about its influence on the level of residual stresses, that it is essential to understand the phenomenon of stress-assisted corrosion. The aim of this study was to evaluate the level of the superficial residual stresses in coatings of AWS E308L T-1 stainless steel applied by the FCAW process on steel plates of ASTM A36. The measurements of residual stresses were performed by a portable X -ray diffractometer on the surface of the coatings and the main results obtained were that the nature of residual stresses on the surface of the coatings always showed compressive and it was not observed linearity of the magnitude of the residual stresses as a function of the welding heat input.

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Evaluation of Residual Stress Field by X-Ray Diffraction using the SenAI Method on E308l Stainless Steel Weld Overlays

Melo
Melo
R. H. F.
R. H. F. Federal University of Campina Grande
Santos
Santos
M. A.
M. A.
Maciel
Maciel
T. M.
T. M.

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