A comparative analysis of tensile and impact-toughness behavior of cold-worked and annealed 7075 aluminum alloy

The present research reports comparative analysis of effects of cold working (CW) and annealing on tensile and impact-toughness behavior of 7075 Al alloy. Cold-rolled samples were annealed at various temperatures in the range of 225-345 degrees C for 5 min. A remarkable increase in ductility and imp...

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Main Authors:	Tajally, M., Huda, Z., Masjuki, H.H.
Format:	Article
Published:	Elsevier 2010
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.um.edu.my/14894/

id	um-14894
recordtype	eprints
spelling	um-148942015-11-30T02:45:09Z A comparative analysis of tensile and impact-toughness behavior of cold-worked and annealed 7075 aluminum alloy Tajally, M. Huda, Z. Masjuki, H.H. TA Engineering (General). Civil engineering (General) The present research reports comparative analysis of effects of cold working (CW) and annealing on tensile and impact-toughness behavior of 7075 Al alloy. Cold-rolled samples were annealed at various temperatures in the range of 225-345 degrees C for 5 min. A remarkable increase in ductility and impact toughness was observed when specimens were annealed at temperatures above 265 degrees C for 5 min. It was also found that cold rolling has a profound effect on strength anisotropy that enhances with amount of % CW. The maximum strengths were observed in the transverse direction in the investigated alloy. Cold rolling has been found to impart a significant effect on decreasing the impact toughness of alloy that enhance with amount of % CW; this loss in impact energy could not be compensated by recrystallization process. It has also been shown that impact test can be considered as a simple method for measurement of toughness and plastic anisotropy in sheet and plate. The analysis of the fracture surfaces with the scanning electron microscope presented dimpled morphology for the failure ductile mechanism in starting material and fibrous structure with some quasi-cleavage regions in cold-rolled samples, corresponding to the ductile to brittle fracture mechanism. (C) 2009 Elsevier Ltd. All rights reserved. Elsevier 2010 Article PeerReviewed Tajally, M.; Huda, Z.; Masjuki, H.H. (2010) A comparative analysis of tensile and impact-toughness behavior of cold-worked and annealed 7075 aluminum alloy. International Journal of Impact Engineering <http://eprints.um.edu.my/view/publication/International_Journal_of_Impact_Engineering.html>, 37 (4). pp. 425-432. http://eprints.um.edu.my/14894/
repository_type	Digital Repository
institution_category	Local University
institution	University Malaya
building	UM Research Repository
collection	Online Access
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Tajally, M. Huda, Z. Masjuki, H.H. A comparative analysis of tensile and impact-toughness behavior of cold-worked and annealed 7075 aluminum alloy
description	The present research reports comparative analysis of effects of cold working (CW) and annealing on tensile and impact-toughness behavior of 7075 Al alloy. Cold-rolled samples were annealed at various temperatures in the range of 225-345 degrees C for 5 min. A remarkable increase in ductility and impact toughness was observed when specimens were annealed at temperatures above 265 degrees C for 5 min. It was also found that cold rolling has a profound effect on strength anisotropy that enhances with amount of % CW. The maximum strengths were observed in the transverse direction in the investigated alloy. Cold rolling has been found to impart a significant effect on decreasing the impact toughness of alloy that enhance with amount of % CW; this loss in impact energy could not be compensated by recrystallization process. It has also been shown that impact test can be considered as a simple method for measurement of toughness and plastic anisotropy in sheet and plate. The analysis of the fracture surfaces with the scanning electron microscope presented dimpled morphology for the failure ductile mechanism in starting material and fibrous structure with some quasi-cleavage regions in cold-rolled samples, corresponding to the ductile to brittle fracture mechanism. (C) 2009 Elsevier Ltd. All rights reserved.
format	Article
author	Tajally, M. Huda, Z. Masjuki, H.H.
author_facet	Tajally, M. Huda, Z. Masjuki, H.H.
author_sort	Tajally, M.
title	A comparative analysis of tensile and impact-toughness behavior of cold-worked and annealed 7075 aluminum alloy
title_short	A comparative analysis of tensile and impact-toughness behavior of cold-worked and annealed 7075 aluminum alloy
title_full	A comparative analysis of tensile and impact-toughness behavior of cold-worked and annealed 7075 aluminum alloy
title_fullStr	A comparative analysis of tensile and impact-toughness behavior of cold-worked and annealed 7075 aluminum alloy
title_full_unstemmed	A comparative analysis of tensile and impact-toughness behavior of cold-worked and annealed 7075 aluminum alloy
title_sort	comparative analysis of tensile and impact-toughness behavior of cold-worked and annealed 7075 aluminum alloy
publisher	Elsevier
publishDate	2010
url	http://eprints.um.edu.my/14894/
first_indexed	2018-09-06T06:26:28Z
last_indexed	2018-09-06T06:26:28Z
_version_	1610838377876160512

A comparative analysis of tensile and impact-toughness behavior of cold-worked and annealed 7075 aluminum alloy

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