Adiabatic shear band localization in an Al–Zn–Mg–Cu alloy under high strain rate compression

An investigation was conducted to study the effect of high strain rate compression on the microstructure and mechanical properties of a spray deposited and hot formed by forging and extrusion followed by T74 (393 K/8h + 433 K/24 h) heat treatment Al–Zn–Mg–Cu alloy. The results show that the strength...

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Main Authors:	Muhammad Abubaker Khan, Yangwei Wang, Ghulam Yasin, Faisal Nazeer, Abdul Malik, Tahir Ahmad, Waheed Qamar Khan, Tuan Anh Nguyen, Hao Zhang, Mohamed A. Afifi
Format:	Article
Language:	English
Published:	Elsevier 2020-05-01
Series:	Journal of Materials Research and Technology
Subjects:	Adiabatic shear bands Al–Zn–Mg–Cu alloy High strain rate Precipitates
Online Access:	http://www.sciencedirect.com/science/article/pii/S2238785420301162

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spelling	doaj-21b2f43ae96f4647a4037c7eaaad6e6e2020-11-25T03:19:38ZengElsevierJournal of Materials Research and Technology2238-78542020-05-019339773983Adiabatic shear band localization in an Al–Zn–Mg–Cu alloy under high strain rate compressionMuhammad Abubaker Khan0Yangwei Wang1Ghulam Yasin2Faisal Nazeer3Abdul Malik4Tahir Ahmad5Waheed Qamar Khan6Tuan Anh Nguyen7Hao Zhang8Mohamed A. Afifi9School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China; National Key Laboratory of Science and Technology on Material Under Shock and Impact, Beijing 100081, China; Corresponding author.State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaCollege of Engineering and Emerging Technologies, University of Punjab, Lahore, PakistanInstitute of Advanced Materials, Bahauddin Zakariya University, 60800, Multan, PakistanInstitute for Tropical Technology, Vietnam Academy of Science and Technology, Hanoi, Viet NamJiangsu Haoran Spray Forming Alloy Co., Ltd, ChinaBCAST, Brunel University London, Uxbridge, UB8 3PH, UKAn investigation was conducted to study the effect of high strain rate compression on the microstructure and mechanical properties of a spray deposited and hot formed by forging and extrusion followed by T74 (393 K/8h + 433 K/24 h) heat treatment Al–Zn–Mg–Cu alloy. The results show that the strength of the Al alloy is increased with increasing strain rate from 1.0 × 10−3 s−1 to 5.0 × 103 s−1 assisted by the strain hardening rate effect. Typical adiabatic shear bands area is found in the Al–Zn–Mg–Cu alloy after compression at high strain rate. Grains are significantly refined within the shear bands areas to ∼180 nm assisted by the dislocation accumulation combined with the temperature rise during the high strain rate compression. Precipitates are observed within the shear bands mainly of fine η' precipitates. These precipitates are close to Mg (Zn, Cu, Al)2 assisted by diffusion provided by dislocations.http://www.sciencedirect.com/science/article/pii/S2238785420301162Adiabatic shear bandsAl–Zn–Mg–Cu alloyHigh strain ratePrecipitates
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Muhammad Abubaker Khan Yangwei Wang Ghulam Yasin Faisal Nazeer Abdul Malik Tahir Ahmad Waheed Qamar Khan Tuan Anh Nguyen Hao Zhang Mohamed A. Afifi
spellingShingle	Muhammad Abubaker Khan Yangwei Wang Ghulam Yasin Faisal Nazeer Abdul Malik Tahir Ahmad Waheed Qamar Khan Tuan Anh Nguyen Hao Zhang Mohamed A. Afifi Adiabatic shear band localization in an Al–Zn–Mg–Cu alloy under high strain rate compression Journal of Materials Research and Technology Adiabatic shear bands Al–Zn–Mg–Cu alloy High strain rate Precipitates
author_facet	Muhammad Abubaker Khan Yangwei Wang Ghulam Yasin Faisal Nazeer Abdul Malik Tahir Ahmad Waheed Qamar Khan Tuan Anh Nguyen Hao Zhang Mohamed A. Afifi
author_sort	Muhammad Abubaker Khan
title	Adiabatic shear band localization in an Al–Zn–Mg–Cu alloy under high strain rate compression
title_short	Adiabatic shear band localization in an Al–Zn–Mg–Cu alloy under high strain rate compression
title_full	Adiabatic shear band localization in an Al–Zn–Mg–Cu alloy under high strain rate compression
title_fullStr	Adiabatic shear band localization in an Al–Zn–Mg–Cu alloy under high strain rate compression
title_full_unstemmed	Adiabatic shear band localization in an Al–Zn–Mg–Cu alloy under high strain rate compression
title_sort	adiabatic shear band localization in an al–zn–mg–cu alloy under high strain rate compression
publisher	Elsevier
series	Journal of Materials Research and Technology
issn	2238-7854
publishDate	2020-05-01
description	An investigation was conducted to study the effect of high strain rate compression on the microstructure and mechanical properties of a spray deposited and hot formed by forging and extrusion followed by T74 (393 K/8h + 433 K/24 h) heat treatment Al–Zn–Mg–Cu alloy. The results show that the strength of the Al alloy is increased with increasing strain rate from 1.0 × 10−3 s−1 to 5.0 × 103 s−1 assisted by the strain hardening rate effect. Typical adiabatic shear bands area is found in the Al–Zn–Mg–Cu alloy after compression at high strain rate. Grains are significantly refined within the shear bands areas to ∼180 nm assisted by the dislocation accumulation combined with the temperature rise during the high strain rate compression. Precipitates are observed within the shear bands mainly of fine η' precipitates. These precipitates are close to Mg (Zn, Cu, Al)2 assisted by diffusion provided by dislocations.
topic	Adiabatic shear bands Al–Zn–Mg–Cu alloy High strain rate Precipitates
url	http://www.sciencedirect.com/science/article/pii/S2238785420301162
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Adiabatic shear band localization in an Al–Zn–Mg–Cu alloy under high strain rate compression

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