Crystal Orientation Evolution During Friction Stir Welding of 6082 Aluminum Alloys

The evolution of grain morphology, grain boundary characterization, misorientation distribution and texture in upper part of base metal and nugget zone during friction stir welding of 6082-T6 aluminum alloys was investigated by the electron backscattered diffraction (EBSD) technique. The results sho...

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Main Authors: ZHANG Liang-liang, WANG Xi-jing, LIU Xiao
Format: Article
Language:zho
Published: Journal of Materials Engineering 2018-10-01
Series:Cailiao gongcheng
Subjects:
Online Access: http://jme.biam.ac.cn/CN/Y2018/V46/I10/55
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author ZHANG Liang-liang
WANG Xi-jing
LIU Xiao
author_facet ZHANG Liang-liang
WANG Xi-jing
LIU Xiao
author_sort ZHANG Liang-liang
collection DOAJ
description The evolution of grain morphology, grain boundary characterization, misorientation distribution and texture in upper part of base metal and nugget zone during friction stir welding of 6082-T6 aluminum alloys was investigated by the electron backscattered diffraction (EBSD) technique. The results show that the grains of the base metal are refined due to the experienced plastic deformation and dynamic recrystallization; based on the Thompson tetrahedrons that are formed behind the pin, the (110)[001] Goss texture and (114)[221] texture are formed firstly in nugget zone adjacent to keyhole. Those grains rotate along 〈110〉 crystallographic direction due to the stress introduced by the shoulder, leading subsequently to the formation of the (112)[111] copper texture and (111)[112] texture; the nugget zone located at a distance of 40mm from the keyhole experiences shoulder extrusion, thus, the plastic deformation degree becomes bigger and the[110] fiber texture consequently dominates in this region.
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spelling doaj.art-65a06b077ae0435883bf0728ea0f07ec2023-01-03T06:24:17ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812018-10-014610555910.11868/j.issn.1001-4381.2017.001011201810001011Crystal Orientation Evolution During Friction Stir Welding of 6082 Aluminum AlloysZHANG Liang-liang0WANG Xi-jing1LIU Xiao2State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, ChinaState Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, ChinaState Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, ChinaThe evolution of grain morphology, grain boundary characterization, misorientation distribution and texture in upper part of base metal and nugget zone during friction stir welding of 6082-T6 aluminum alloys was investigated by the electron backscattered diffraction (EBSD) technique. The results show that the grains of the base metal are refined due to the experienced plastic deformation and dynamic recrystallization; based on the Thompson tetrahedrons that are formed behind the pin, the (110)[001] Goss texture and (114)[221] texture are formed firstly in nugget zone adjacent to keyhole. Those grains rotate along 〈110〉 crystallographic direction due to the stress introduced by the shoulder, leading subsequently to the formation of the (112)[111] copper texture and (111)[112] texture; the nugget zone located at a distance of 40mm from the keyhole experiences shoulder extrusion, thus, the plastic deformation degree becomes bigger and the[110] fiber texture consequently dominates in this region. http://jme.biam.ac.cn/CN/Y2018/V46/I10/55 6082-T6 aluminum alloyfriction stir weldingcrystal orientation evolutionEBSD
spellingShingle ZHANG Liang-liang
WANG Xi-jing
LIU Xiao
Crystal Orientation Evolution During Friction Stir Welding of 6082 Aluminum Alloys
Cailiao gongcheng
6082-T6 aluminum alloy
friction stir welding
crystal orientation evolution
EBSD
title Crystal Orientation Evolution During Friction Stir Welding of 6082 Aluminum Alloys
title_full Crystal Orientation Evolution During Friction Stir Welding of 6082 Aluminum Alloys
title_fullStr Crystal Orientation Evolution During Friction Stir Welding of 6082 Aluminum Alloys
title_full_unstemmed Crystal Orientation Evolution During Friction Stir Welding of 6082 Aluminum Alloys
title_short Crystal Orientation Evolution During Friction Stir Welding of 6082 Aluminum Alloys
title_sort crystal orientation evolution during friction stir welding of 6082 aluminum alloys
topic 6082-T6 aluminum alloy
friction stir welding
crystal orientation evolution
EBSD
url http://jme.biam.ac.cn/CN/Y2018/V46/I10/55
work_keys_str_mv AT zhangliangliang crystalorientationevolutionduringfrictionstirweldingof6082aluminumalloys
AT wangxijing crystalorientationevolutionduringfrictionstirweldingof6082aluminumalloys
AT liuxiao crystalorientationevolutionduringfrictionstirweldingof6082aluminumalloys