Microstructural Evolution and Hardness Responses of 7050 Al Alloy during Processing

The thermal-mechanical process (TMP) plays an important role in the industrial production of 7050 Al alloys for aircraft components. In this work, the microstructural evolution and influence on hardness of a 7050 alloy ingot, during the process from preheating, deformation and cooling to final heat...

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Main Authors: Yuting Zhou, Jie Zhou, Xinrui Xiao, Shishan Li, Mingliang Cui, Peng Zhang, Shuai Long, Jiansheng Zhang
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/15/16/5629
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author Yuting Zhou
Jie Zhou
Xinrui Xiao
Shishan Li
Mingliang Cui
Peng Zhang
Shuai Long
Jiansheng Zhang
author_facet Yuting Zhou
Jie Zhou
Xinrui Xiao
Shishan Li
Mingliang Cui
Peng Zhang
Shuai Long
Jiansheng Zhang
author_sort Yuting Zhou
collection DOAJ
description The thermal-mechanical process (TMP) plays an important role in the industrial production of 7050 Al alloys for aircraft components. In this work, the microstructural evolution and influence on hardness of a 7050 alloy ingot, during the process from preheating, deformation and cooling to final heat treatment, have been investigated considering the effect of temperature and the post-deformation cooling path. The results showed that an increasing temperature and decreasing cooling rate during TMP can lead to enhanced hardness of the alloy after heat treatment. Moreover, the variation of recrystallization before and after heat treatment was strongly dependent on the cooling path after deformation. Finally, this study provided a general understanding on the relationship between microstructural evolution and harness of the 7050 alloy.
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spelling doaj.art-3afd99c34495453997d8bb9556f02bce2023-12-03T14:01:43ZengMDPI AGMaterials1996-19442022-08-011516562910.3390/ma15165629Microstructural Evolution and Hardness Responses of 7050 Al Alloy during ProcessingYuting Zhou0Jie Zhou1Xinrui Xiao2Shishan Li3Mingliang Cui4Peng Zhang5Shuai Long6Jiansheng Zhang7School of Material Science and Engineering, Chongqing University, Chongqing 400044, ChinaSchool of Material Science and Engineering, Chongqing University, Chongqing 400044, ChinaSchool of Material Science and Engineering, Chongqing University, Chongqing 400044, ChinaSchool of Material Science and Engineering, Chongqing University, Chongqing 400044, ChinaDeyang Wanhang Die Forging Co., Ltd., China National Erzhong Group Co., Deyang 618013, ChinaDeyang Wanhang Die Forging Co., Ltd., China National Erzhong Group Co., Deyang 618013, ChinaCollege of Metallurgy and Material Engineering, Chongqing University of Science and Technology, Chongqing 401331, ChinaSchool of Material Science and Engineering, Chongqing University, Chongqing 400044, ChinaThe thermal-mechanical process (TMP) plays an important role in the industrial production of 7050 Al alloys for aircraft components. In this work, the microstructural evolution and influence on hardness of a 7050 alloy ingot, during the process from preheating, deformation and cooling to final heat treatment, have been investigated considering the effect of temperature and the post-deformation cooling path. The results showed that an increasing temperature and decreasing cooling rate during TMP can lead to enhanced hardness of the alloy after heat treatment. Moreover, the variation of recrystallization before and after heat treatment was strongly dependent on the cooling path after deformation. Finally, this study provided a general understanding on the relationship between microstructural evolution and harness of the 7050 alloy.https://www.mdpi.com/1996-1944/15/16/56297050 alloysecondary precipitatesmicrostructural evolutionhardness
spellingShingle Yuting Zhou
Jie Zhou
Xinrui Xiao
Shishan Li
Mingliang Cui
Peng Zhang
Shuai Long
Jiansheng Zhang
Microstructural Evolution and Hardness Responses of 7050 Al Alloy during Processing
Materials
7050 alloy
secondary precipitates
microstructural evolution
hardness
title Microstructural Evolution and Hardness Responses of 7050 Al Alloy during Processing
title_full Microstructural Evolution and Hardness Responses of 7050 Al Alloy during Processing
title_fullStr Microstructural Evolution and Hardness Responses of 7050 Al Alloy during Processing
title_full_unstemmed Microstructural Evolution and Hardness Responses of 7050 Al Alloy during Processing
title_short Microstructural Evolution and Hardness Responses of 7050 Al Alloy during Processing
title_sort microstructural evolution and hardness responses of 7050 al alloy during processing
topic 7050 alloy
secondary precipitates
microstructural evolution
hardness
url https://www.mdpi.com/1996-1944/15/16/5629
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