Effect of imposed strain and annealing temperature on uniform elongation in A5052 alloy processed by accumulative roll bonding

The relation between strain and uniform elongation, and the effect of low-temperature annealing, were examined using an Al-Mg alloy (A5052) processed by accumulative roll bonding (ARB). Specimens were deformed by ARB for 1 to 7 cycles at room temperature, and then subjected to isochronal annealing f...

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Autores principales:	Keizo KASHIHARA, Yoshikazu KOMI, Nobuhiro TSUJI
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2016
Materias:	aluminum-magnesium alloy severe plastic deformation mechanical property low temperature annealing ultrafine grains Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/044cf48889004629ab2c1c70d3f3b3fd
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spelling	oai:doaj.org-article:044cf48889004629ab2c1c70d3f3b3fd2021-11-26T06:58:32ZEffect of imposed strain and annealing temperature on uniform elongation in A5052 alloy processed by accumulative roll bonding2187-974510.1299/mej.16-00139https://doaj.org/article/044cf48889004629ab2c1c70d3f3b3fd2016-08-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/3/6/3_16-00139/_pdf/-char/enhttps://doaj.org/toc/2187-9745The relation between strain and uniform elongation, and the effect of low-temperature annealing, were examined using an Al-Mg alloy (A5052) processed by accumulative roll bonding (ARB). Specimens were deformed by ARB for 1 to 7 cycles at room temperature, and then subjected to isochronal annealing for 30 min at temperatures ranging from 100 to 300 °C. Tensile properties, hardness, and grain boundary structure before and after annealing were investigated. The uniform elongation of ARB-processed specimens decreases with increasing ARB cycles. However, the elongation is improved by low-temperature annealing for specimens processed by ARB of 3 or more cycles. Higher strain in the ARB process results in higher uniform elongation after annealing, even though the specimens have the same value of 0.2% proof stress. This improvement of the uniform elongation by annealing is caused by annihilation of dislocations inside ultra-fine grains, which are developed by ARB of 3 or more cycles.Keizo KASHIHARAYoshikazu KOMINobuhiro TSUJIThe Japan Society of Mechanical Engineersarticlealuminum-magnesium alloysevere plastic deformationmechanical propertylow temperature annealingultrafine grainsMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 3, Iss 6, Pp 16-00139-16-00139 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	aluminum-magnesium alloy severe plastic deformation mechanical property low temperature annealing ultrafine grains Mechanical engineering and machinery TJ1-1570
spellingShingle	aluminum-magnesium alloy severe plastic deformation mechanical property low temperature annealing ultrafine grains Mechanical engineering and machinery TJ1-1570 Keizo KASHIHARA Yoshikazu KOMI Nobuhiro TSUJI Effect of imposed strain and annealing temperature on uniform elongation in A5052 alloy processed by accumulative roll bonding
description	The relation between strain and uniform elongation, and the effect of low-temperature annealing, were examined using an Al-Mg alloy (A5052) processed by accumulative roll bonding (ARB). Specimens were deformed by ARB for 1 to 7 cycles at room temperature, and then subjected to isochronal annealing for 30 min at temperatures ranging from 100 to 300 °C. Tensile properties, hardness, and grain boundary structure before and after annealing were investigated. The uniform elongation of ARB-processed specimens decreases with increasing ARB cycles. However, the elongation is improved by low-temperature annealing for specimens processed by ARB of 3 or more cycles. Higher strain in the ARB process results in higher uniform elongation after annealing, even though the specimens have the same value of 0.2% proof stress. This improvement of the uniform elongation by annealing is caused by annihilation of dislocations inside ultra-fine grains, which are developed by ARB of 3 or more cycles.
format	article
author	Keizo KASHIHARA Yoshikazu KOMI Nobuhiro TSUJI
author_facet	Keizo KASHIHARA Yoshikazu KOMI Nobuhiro TSUJI
author_sort	Keizo KASHIHARA
title	Effect of imposed strain and annealing temperature on uniform elongation in A5052 alloy processed by accumulative roll bonding
title_short	Effect of imposed strain and annealing temperature on uniform elongation in A5052 alloy processed by accumulative roll bonding
title_full	Effect of imposed strain and annealing temperature on uniform elongation in A5052 alloy processed by accumulative roll bonding
title_fullStr	Effect of imposed strain and annealing temperature on uniform elongation in A5052 alloy processed by accumulative roll bonding
title_full_unstemmed	Effect of imposed strain and annealing temperature on uniform elongation in A5052 alloy processed by accumulative roll bonding
title_sort	effect of imposed strain and annealing temperature on uniform elongation in a5052 alloy processed by accumulative roll bonding
publisher	The Japan Society of Mechanical Engineers
publishDate	2016
url	https://doaj.org/article/044cf48889004629ab2c1c70d3f3b3fd
work_keys_str_mv	AT keizokashihara effectofimposedstrainandannealingtemperatureonuniformelongationina5052alloyprocessedbyaccumulativerollbonding AT yoshikazukomi effectofimposedstrainandannealingtemperatureonuniformelongationina5052alloyprocessedbyaccumulativerollbonding AT nobuhirotsuji effectofimposedstrainandannealingtemperatureonuniformelongationina5052alloyprocessedbyaccumulativerollbonding
_version_	1718409698249539584

Effect of imposed strain and annealing temperature on uniform elongation in A5052 alloy processed by accumulative roll bonding

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