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

Muhammad Abubaker Khan; Yangwei Wang; Ghulam Yasin; Faisal Nazeer; Abdul Malik; Tahir Ahmad; Waheed Qamar Khan; Tuan Anh Nguyen; Hao Zhang; Mohamed A. Afifi

doi:10.1016/j.jmrt.2020.02.024

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

Muhammad Abubaker Khan, Yangwei Wang^*, Ghulam Yasin, Faisal Nazeer, Abdul Malik, Tahir Ahmad, Waheed Qamar Khan, Tuan Anh Nguyen, Hao Zhang, Mohamed A. Afifi

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	3977-3983
Number of pages	7
Journal	Journal of Materials Research and Technology
Volume	9
Issue number	3
DOIs	https://doi.org/10.1016/j.jmrt.2020.02.024
Publication status	Published - 2020

Keywords

Adiabatic shear bands
Al–Zn–Mg–Cu alloy
High strain rate
Precipitates

Access to Document

10.1016/j.jmrt.2020.02.024

Cite this

@article{951a36540e744a7c9bb1b316e6ca8d18,

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

abstract = "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{\textquoteright} precipitates. These precipitates are close to Mg (Zn, Cu, Al)2 assisted by diffusion provided by dislocations.",

keywords = "Adiabatic shear bands, Al–Zn–Mg–Cu alloy, High strain rate, Precipitates",

author = "Khan, {Muhammad Abubaker} and Yangwei Wang and Ghulam Yasin and Faisal Nazeer and Abdul Malik and Tahir Ahmad and Khan, {Waheed Qamar} and Nguyen, {Tuan Anh} and Hao Zhang and Afifi, {Mohamed A.}",

note = "Publisher Copyright: {\textcopyright} 2020 The Authors. Published by Elsevier B.V.",

year = "2020",

doi = "10.1016/j.jmrt.2020.02.024",

language = "English",

volume = "9",

pages = "3977--3983",

journal = "Journal of Materials Research and Technology",

issn = "2238-7854",

publisher = "Elsevier Editora Ltda",

number = "3",

}

TY - JOUR

T1 - Adiabatic shear band localization in an Al–Zn–Mg–Cu alloy under high strain rate compression

AU - Khan, Muhammad Abubaker

AU - Wang, Yangwei

AU - Yasin, Ghulam

AU - Nazeer, Faisal

AU - Malik, Abdul

AU - Ahmad, Tahir

AU - Khan, Waheed Qamar

AU - Nguyen, Tuan Anh

AU - Zhang, Hao

AU - Afifi, Mohamed A.

PY - 2020

Y1 - 2020

N2 - 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.

AB - 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.

KW - Adiabatic shear bands

KW - Al–Zn–Mg–Cu alloy

KW - High strain rate

KW - Precipitates

UR - http://www.scopus.com/inward/record.url?scp=85081699778&partnerID=8YFLogxK

U2 - 10.1016/j.jmrt.2020.02.024

DO - 10.1016/j.jmrt.2020.02.024

M3 - Article

AN - SCOPUS:85081699778

SN - 2238-7854

VL - 9

SP - 3977

EP - 3983

JO - Journal of Materials Research and Technology

JF - Journal of Materials Research and Technology

IS - 3

ER -

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

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this