Redistribution of Grain Boundary Misorientation and Residual Stresses of Thermomechanically Simulated Welding in an Intercritically Reheated Coarse Grained Heat Affected Zone

A study of the migration of the grain boundary misorientation and its relationship with the residual stresses through time immediately after the completion of a thermomechanical simulation has been carried out. After physically simulating an intercritically overheated welding heat affected zone, the...

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Autores principales:	Giancarlo Sanchez Chavez, Segen Farid Estefen, Tetyana Gurova, Anatoli Leontiev, Lincoln Silva Gomes, Suzana Bottega Peripolli
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	grain boundary misorientation welding residual stresses dislocations Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/fc09f4c922a9463092c196dba2bece6e
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spelling	oai:doaj.org-article:fc09f4c922a9463092c196dba2bece6e2021-11-25T18:22:24ZRedistribution of Grain Boundary Misorientation and Residual Stresses of Thermomechanically Simulated Welding in an Intercritically Reheated Coarse Grained Heat Affected Zone10.3390/met111118502075-4701https://doaj.org/article/fc09f4c922a9463092c196dba2bece6e2021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1850https://doaj.org/toc/2075-4701A study of the migration of the grain boundary misorientation and its relationship with the residual stresses through time immediately after the completion of a thermomechanical simulation has been carried out. After physically simulating an intercritically overheated welding heat affected zone, the variation of the misorientation of grain contours was observed with the electron backscatter diffraction (EBSD) technique and likewise the variation of the residual stresses of welding with RAYSTRESS equipment. It was observed that the misorientation of the grain contours in an ASTM DH36 steel was modified after the thermomechanical simulation, which corresponds to the measured residual stress variation along the first week of monitoring, with compressive residual stresses ranging from 195 MPa to 160 MPa. The changes in misorientation indicate that the stress relaxation phenomenon is associated with the evolution of the misorientation in the microstructure caused by the welding procedure. On the first day, there was a fraction of 4% of the kernel average misorientation (KAM) values at 1° misorientation and on the fourth day, there was a fraction of 7% of the KAM values at 1° misorientation.Giancarlo Sanchez ChavezSegen Farid EstefenTetyana GurovaAnatoli LeontievLincoln Silva GomesSuzana Bottega PeripolliMDPI AGarticlegrain boundary misorientationwelding residual stressesdislocationsMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1850, p 1850 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	grain boundary misorientation welding residual stresses dislocations Mining engineering. Metallurgy TN1-997
spellingShingle	grain boundary misorientation welding residual stresses dislocations Mining engineering. Metallurgy TN1-997 Giancarlo Sanchez Chavez Segen Farid Estefen Tetyana Gurova Anatoli Leontiev Lincoln Silva Gomes Suzana Bottega Peripolli Redistribution of Grain Boundary Misorientation and Residual Stresses of Thermomechanically Simulated Welding in an Intercritically Reheated Coarse Grained Heat Affected Zone
description	A study of the migration of the grain boundary misorientation and its relationship with the residual stresses through time immediately after the completion of a thermomechanical simulation has been carried out. After physically simulating an intercritically overheated welding heat affected zone, the variation of the misorientation of grain contours was observed with the electron backscatter diffraction (EBSD) technique and likewise the variation of the residual stresses of welding with RAYSTRESS equipment. It was observed that the misorientation of the grain contours in an ASTM DH36 steel was modified after the thermomechanical simulation, which corresponds to the measured residual stress variation along the first week of monitoring, with compressive residual stresses ranging from 195 MPa to 160 MPa. The changes in misorientation indicate that the stress relaxation phenomenon is associated with the evolution of the misorientation in the microstructure caused by the welding procedure. On the first day, there was a fraction of 4% of the kernel average misorientation (KAM) values at 1° misorientation and on the fourth day, there was a fraction of 7% of the KAM values at 1° misorientation.
format	article
author	Giancarlo Sanchez Chavez Segen Farid Estefen Tetyana Gurova Anatoli Leontiev Lincoln Silva Gomes Suzana Bottega Peripolli
author_facet	Giancarlo Sanchez Chavez Segen Farid Estefen Tetyana Gurova Anatoli Leontiev Lincoln Silva Gomes Suzana Bottega Peripolli
author_sort	Giancarlo Sanchez Chavez
title	Redistribution of Grain Boundary Misorientation and Residual Stresses of Thermomechanically Simulated Welding in an Intercritically Reheated Coarse Grained Heat Affected Zone
title_short	Redistribution of Grain Boundary Misorientation and Residual Stresses of Thermomechanically Simulated Welding in an Intercritically Reheated Coarse Grained Heat Affected Zone
title_full	Redistribution of Grain Boundary Misorientation and Residual Stresses of Thermomechanically Simulated Welding in an Intercritically Reheated Coarse Grained Heat Affected Zone
title_fullStr	Redistribution of Grain Boundary Misorientation and Residual Stresses of Thermomechanically Simulated Welding in an Intercritically Reheated Coarse Grained Heat Affected Zone
title_full_unstemmed	Redistribution of Grain Boundary Misorientation and Residual Stresses of Thermomechanically Simulated Welding in an Intercritically Reheated Coarse Grained Heat Affected Zone
title_sort	redistribution of grain boundary misorientation and residual stresses of thermomechanically simulated welding in an intercritically reheated coarse grained heat affected zone
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/fc09f4c922a9463092c196dba2bece6e
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Redistribution of Grain Boundary Misorientation and Residual Stresses of Thermomechanically Simulated Welding in an Intercritically Reheated Coarse Grained Heat Affected Zone

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