Strength variation of pre-strain aluminium alloys (axial compression) due to isochronal annealing

Aluminium-Magnesium (Al-Mg) alloys have very good formability properties and have been used extensively for interior structural components of automotive body-in-white (BIW). The alloys in an annealed temper attain their strength through work hardening mechanism during press forming process. The...

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Main Author:	Jantie, Beatrice Connie
Format:	Undergraduates Project Papers
Language:	English
Published:	2007
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/2260/ http://umpir.ump.edu.my/id/eprint/2260/1/BEATRICE_CONNIE_ANAK_JANTIE.PDF

id	ump-2260
recordtype	eprints
spelling	ump-22602015-03-03T07:55:36Z http://umpir.ump.edu.my/id/eprint/2260/ Strength variation of pre-strain aluminium alloys (axial compression) due to isochronal annealing Jantie, Beatrice Connie TA Engineering (General). Civil engineering (General) Aluminium-Magnesium (Al-Mg) alloys have very good formability properties and have been used extensively for interior structural components of automotive body-in-white (BIW). The alloys in an annealed temper attain their strength through work hardening mechanism during press forming process. The strengthening mechanism is due to Mg atoms in solid solutions exerting dislocation drag during low temperature plastic straining. However, at elevated temperatures, high diffusivity of Mg atoms allows easy dislocations rearrangements which lead to reduction of mechanical strength (softening/thennal recovery). Furthermore, accumulation of stored energy in the dislocations substructures due plastic straining during press forming process also serves as a large driving force for thermal recovery. The two factors caused the components made out of Al-Mg alloy sheet to be susceptible to softening during paint bake cycle. This project will scientifically analysis those factors and makes suggestions how to mitigate the problem. 2007-11 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/2260/1/BEATRICE_CONNIE_ANAK_JANTIE.PDF Jantie, Beatrice Connie (2007) Strength variation of pre-strain aluminium alloys (axial compression) due to isochronal annealing. Faculty of Mechanical Engineering, Universiti Malaysia Pahang.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Jantie, Beatrice Connie Strength variation of pre-strain aluminium alloys (axial compression) due to isochronal annealing
description	Aluminium-Magnesium (Al-Mg) alloys have very good formability properties and have been used extensively for interior structural components of automotive body-in-white (BIW). The alloys in an annealed temper attain their strength through work hardening mechanism during press forming process. The strengthening mechanism is due to Mg atoms in solid solutions exerting dislocation drag during low temperature plastic straining. However, at elevated temperatures, high diffusivity of Mg atoms allows easy dislocations rearrangements which lead to reduction of mechanical strength (softening/thennal recovery). Furthermore, accumulation of stored energy in the dislocations substructures due plastic straining during press forming process also serves as a large driving force for thermal recovery. The two factors caused the components made out of Al-Mg alloy sheet to be susceptible to softening during paint bake cycle. This project will scientifically analysis those factors and makes suggestions how to mitigate the problem.
format	Undergraduates Project Papers
author	Jantie, Beatrice Connie
author_facet	Jantie, Beatrice Connie
author_sort	Jantie, Beatrice Connie
title	Strength variation of pre-strain aluminium alloys (axial compression) due to isochronal annealing
title_short	Strength variation of pre-strain aluminium alloys (axial compression) due to isochronal annealing
title_full	Strength variation of pre-strain aluminium alloys (axial compression) due to isochronal annealing
title_fullStr	Strength variation of pre-strain aluminium alloys (axial compression) due to isochronal annealing
title_full_unstemmed	Strength variation of pre-strain aluminium alloys (axial compression) due to isochronal annealing
title_sort	strength variation of pre-strain aluminium alloys (axial compression) due to isochronal annealing
publishDate	2007
url	http://umpir.ump.edu.my/id/eprint/2260/ http://umpir.ump.edu.my/id/eprint/2260/1/BEATRICE_CONNIE_ANAK_JANTIE.PDF
first_indexed	2023-09-18T21:55:54Z
last_indexed	2023-09-18T21:55:54Z
_version_	1777414076833464320

Strength variation of pre-strain aluminium alloys (axial compression) due to isochronal annealing

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