Effect of heat treatment on the precipitate behaviour, corrosion resistance and high temperature tensile properties of 7055 aluminum alloy synthesis by novel spray deposited followed by hot extrusion

Muhammad Abubaker Khan; Yangwei Wang; Muhammad Junaid Anjum; Ghulam Yasin; Abdul Malik; Faisal Nazeer; Shahrukh Khan; Tahir Ahmad; Hao Zhang

doi:10.1016/j.vacuum.2020.109185

Effect of heat treatment on the precipitate behaviour, corrosion resistance and high temperature tensile properties of 7055 aluminum alloy synthesis by novel spray deposited followed by hot extrusion

Muhammad Abubaker Khan, Yangwei Wang^*, Muhammad Junaid Anjum, Ghulam Yasin, Abdul Malik, Faisal Nazeer, Shahrukh Khan, Tahir Ahmad, Hao Zhang

^*Corresponding author for this work

School of Material Science and Engineering

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

45 Citations (Scopus)

Abstract

The aim of current study is to observe the microstructure characterization, corrosion resistance and tensile behaviour of spray deposited 7055 aluminum alloy. The spray deposited aluminum alloy was subjected to extrusion at 703 K and then followed by solution treatment (743 K/1.6 h) and T76 aging treatment (393 K for 6 h + 433 K for 6 h). It was revealed that large fraction of fine η′ precipitates appeared after T76 treatment. The large fraction of fine precipitates was responsible for high tensile strength, ductility and corrosion resistance. The 7055-T76 heat-treated samples yield strength and ultimate tensile strength decreased gradually up to 498 K and decreased sharply above that temperature. On the other hand, the as-received 7055 Al alloy yield strength and ultimate tensile strength decreased dramatically after 398 K. The tensile fracture was occurred at elevated temperature owing to the growth of small voids and their agglomeration.

Original language	English
Article number	109185
Journal	Vacuum
Volume	174
DOIs	https://doi.org/10.1016/j.vacuum.2020.109185
Publication status	Published - Apr 2020

Keywords

7055 aluminum alloy
Aging treatment
Corrosion resistance
High-temperature tensile behaviour
Spray deposited

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10.1016/j.vacuum.2020.109185

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Khan, M. A., Wang, Y., Anjum, M. J., Yasin, G., Malik, A., Nazeer, F., Khan, S., Ahmad, T., & Zhang, H. (2020). Effect of heat treatment on the precipitate behaviour, corrosion resistance and high temperature tensile properties of 7055 aluminum alloy synthesis by novel spray deposited followed by hot extrusion. Vacuum, 174, Article 109185. https://doi.org/10.1016/j.vacuum.2020.109185

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title = "Effect of heat treatment on the precipitate behaviour, corrosion resistance and high temperature tensile properties of 7055 aluminum alloy synthesis by novel spray deposited followed by hot extrusion",

abstract = "The aim of current study is to observe the microstructure characterization, corrosion resistance and tensile behaviour of spray deposited 7055 aluminum alloy. The spray deposited aluminum alloy was subjected to extrusion at 703 K and then followed by solution treatment (743 K/1.6 h) and T76 aging treatment (393 K for 6 h + 433 K for 6 h). It was revealed that large fraction of fine η′ precipitates appeared after T76 treatment. The large fraction of fine precipitates was responsible for high tensile strength, ductility and corrosion resistance. The 7055-T76 heat-treated samples yield strength and ultimate tensile strength decreased gradually up to 498 K and decreased sharply above that temperature. On the other hand, the as-received 7055 Al alloy yield strength and ultimate tensile strength decreased dramatically after 398 K. The tensile fracture was occurred at elevated temperature owing to the growth of small voids and their agglomeration.",

keywords = "7055 aluminum alloy, Aging treatment, Corrosion resistance, High-temperature tensile behaviour, Spray deposited",

author = "Khan, {Muhammad Abubaker} and Yangwei Wang and Anjum, {Muhammad Junaid} and Ghulam Yasin and Abdul Malik and Faisal Nazeer and Shahrukh Khan and Tahir Ahmad and Hao Zhang",

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year = "2020",

month = apr,

doi = "10.1016/j.vacuum.2020.109185",

language = "English",

volume = "174",

journal = "Vacuum",

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Effect of heat treatment on the precipitate behaviour, corrosion resistance and high temperature tensile properties of 7055 aluminum alloy synthesis by novel spray deposited followed by hot extrusion. / Khan, Muhammad Abubaker; Wang, Yangwei; Anjum, Muhammad Junaid et al.
In: Vacuum, Vol. 174, 109185, 04.2020.

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

TY - JOUR

T1 - Effect of heat treatment on the precipitate behaviour, corrosion resistance and high temperature tensile properties of 7055 aluminum alloy synthesis by novel spray deposited followed by hot extrusion

AU - Khan, Muhammad Abubaker

AU - Wang, Yangwei

AU - Anjum, Muhammad Junaid

AU - Yasin, Ghulam

AU - Malik, Abdul

AU - Nazeer, Faisal

AU - Khan, Shahrukh

AU - Ahmad, Tahir

AU - Zhang, Hao

PY - 2020/4

Y1 - 2020/4

N2 - The aim of current study is to observe the microstructure characterization, corrosion resistance and tensile behaviour of spray deposited 7055 aluminum alloy. The spray deposited aluminum alloy was subjected to extrusion at 703 K and then followed by solution treatment (743 K/1.6 h) and T76 aging treatment (393 K for 6 h + 433 K for 6 h). It was revealed that large fraction of fine η′ precipitates appeared after T76 treatment. The large fraction of fine precipitates was responsible for high tensile strength, ductility and corrosion resistance. The 7055-T76 heat-treated samples yield strength and ultimate tensile strength decreased gradually up to 498 K and decreased sharply above that temperature. On the other hand, the as-received 7055 Al alloy yield strength and ultimate tensile strength decreased dramatically after 398 K. The tensile fracture was occurred at elevated temperature owing to the growth of small voids and their agglomeration.

AB - The aim of current study is to observe the microstructure characterization, corrosion resistance and tensile behaviour of spray deposited 7055 aluminum alloy. The spray deposited aluminum alloy was subjected to extrusion at 703 K and then followed by solution treatment (743 K/1.6 h) and T76 aging treatment (393 K for 6 h + 433 K for 6 h). It was revealed that large fraction of fine η′ precipitates appeared after T76 treatment. The large fraction of fine precipitates was responsible for high tensile strength, ductility and corrosion resistance. The 7055-T76 heat-treated samples yield strength and ultimate tensile strength decreased gradually up to 498 K and decreased sharply above that temperature. On the other hand, the as-received 7055 Al alloy yield strength and ultimate tensile strength decreased dramatically after 398 K. The tensile fracture was occurred at elevated temperature owing to the growth of small voids and their agglomeration.

KW - 7055 aluminum alloy

KW - Aging treatment

KW - Corrosion resistance

KW - High-temperature tensile behaviour

KW - Spray deposited

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U2 - 10.1016/j.vacuum.2020.109185

DO - 10.1016/j.vacuum.2020.109185

M3 - Article

AN - SCOPUS:85077737698

SN - 0042-207X

VL - 174

JO - Vacuum

JF - Vacuum

M1 - 109185

ER -

Effect of heat treatment on the precipitate behaviour, corrosion resistance and high temperature tensile properties of 7055 aluminum alloy synthesis by novel spray deposited followed by hot extrusion

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