Effect of Parameters on Fatigue Properties and Crack Propagation Behavior of Friction Stir Crack Repaired Al2024

Through investigating the effect of parameters on the fatigue properties and crack propagation behavior of friction stir crack repaired 2024 aluminum alloy, we demonstrated that the fatigue strength of friction stir repaired Al2024 was sensitive to the repairing parameters and had a “V” type discipl...

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Main Authors: Lei Wang, Jiahui Cong, Jungang Ren, Li Hui, Song Zhou
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/10/8/1026
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author Lei Wang
Jiahui Cong
Jungang Ren
Li Hui
Song Zhou
author_facet Lei Wang
Jiahui Cong
Jungang Ren
Li Hui
Song Zhou
author_sort Lei Wang
collection DOAJ
description Through investigating the effect of parameters on the fatigue properties and crack propagation behavior of friction stir crack repaired 2024 aluminum alloy, we demonstrated that the fatigue strength of friction stir repaired Al2024 was sensitive to the repairing parameters and had a “V” type discipline with the rotating speed or advancing velocity. The fatigue crack growth rates of the repaired specimens were higher than the base material counterpart, and the crack propagation mechanism in the repaired zone was mainly intergranular. When the improper repairing parameters were adopted, the delamination defect would form at the interfaces between the repaired layer and base material
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spelling doaj.art-2634ee70794d49b7b9654f907b73ed1f2023-11-20T08:40:24ZengMDPI AGMetals2075-47012020-07-01108102610.3390/met10081026Effect of Parameters on Fatigue Properties and Crack Propagation Behavior of Friction Stir Crack Repaired Al2024Lei Wang0Jiahui Cong1Jungang Ren2Li Hui3Song Zhou4Key Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process, Shenyang Aerospace University, Shenyang 110136, ChinaKey Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process, Shenyang Aerospace University, Shenyang 110136, ChinaDepartment of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, ChinaKey Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process, Shenyang Aerospace University, Shenyang 110136, ChinaKey Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process, Shenyang Aerospace University, Shenyang 110136, ChinaThrough investigating the effect of parameters on the fatigue properties and crack propagation behavior of friction stir crack repaired 2024 aluminum alloy, we demonstrated that the fatigue strength of friction stir repaired Al2024 was sensitive to the repairing parameters and had a “V” type discipline with the rotating speed or advancing velocity. The fatigue crack growth rates of the repaired specimens were higher than the base material counterpart, and the crack propagation mechanism in the repaired zone was mainly intergranular. When the improper repairing parameters were adopted, the delamination defect would form at the interfaces between the repaired layer and base materialhttps://www.mdpi.com/2075-4701/10/8/1026friction stir crack repairingaluminum alloyfatigue propertycrack propagation
spellingShingle Lei Wang
Jiahui Cong
Jungang Ren
Li Hui
Song Zhou
Effect of Parameters on Fatigue Properties and Crack Propagation Behavior of Friction Stir Crack Repaired Al2024
Metals
friction stir crack repairing
aluminum alloy
fatigue property
crack propagation
title Effect of Parameters on Fatigue Properties and Crack Propagation Behavior of Friction Stir Crack Repaired Al2024
title_full Effect of Parameters on Fatigue Properties and Crack Propagation Behavior of Friction Stir Crack Repaired Al2024
title_fullStr Effect of Parameters on Fatigue Properties and Crack Propagation Behavior of Friction Stir Crack Repaired Al2024
title_full_unstemmed Effect of Parameters on Fatigue Properties and Crack Propagation Behavior of Friction Stir Crack Repaired Al2024
title_short Effect of Parameters on Fatigue Properties and Crack Propagation Behavior of Friction Stir Crack Repaired Al2024
title_sort effect of parameters on fatigue properties and crack propagation behavior of friction stir crack repaired al2024
topic friction stir crack repairing
aluminum alloy
fatigue property
crack propagation
url https://www.mdpi.com/2075-4701/10/8/1026
work_keys_str_mv AT leiwang effectofparametersonfatiguepropertiesandcrackpropagationbehavioroffrictionstircrackrepairedal2024
AT jiahuicong effectofparametersonfatiguepropertiesandcrackpropagationbehavioroffrictionstircrackrepairedal2024
AT jungangren effectofparametersonfatiguepropertiesandcrackpropagationbehavioroffrictionstircrackrepairedal2024
AT lihui effectofparametersonfatiguepropertiesandcrackpropagationbehavioroffrictionstircrackrepairedal2024
AT songzhou effectofparametersonfatiguepropertiesandcrackpropagationbehavioroffrictionstircrackrepairedal2024