Effect of materials positioning on dissimilar modified friction stir clinching between aluminum 5754-O and 2024-T3 sheets

Zhou Haiyan; Kush Mehta

doi:10.1016/j.vacuum.2020.109445

Effect of materials positioning on dissimilar modified friction stir clinching between aluminum 5754-O and 2024-T3 sheets

Zhou Haiyan, Kush Mehta

Department of Energy and Mechanical Engineering

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

11 Citations (Scopus)

49 Downloads (Pure)

Abstract

Dissimilar welding in lap joint configuration between AA5754-O and AA2024-T3 materials is successfully performed using novel technique of Modified Friction Stir Clinching (MFSC) process, wherein materials positioning is analyzed in this investigation. The results revealed that materials positioning in dissimilar MFSC between AA2024-T3 and AA5754-O greatly influences joint properties and grain formation behavior in size, shape and orientations. The superior protuberance leveling of keyhole without any defects and with highest fracture load of 1483 N having fascinating mixing features between AA5754-O and AA2024-T3 were obtained when AA2024-T3 material was kept on top of AA5754-O during second phase of MFSC. Dominated ductile fracture characterized as intergranular fracture mode with secondary cracks and quasi cleavage dimples were also observed in both MFSC.

Original language	English
Article number	109445
Number of pages	6
Journal	Vacuum
Volume	178
Early online date	13 May 2020
DOIs	https://doi.org/10.1016/j.vacuum.2020.109445
Publication status	Published - 1 Aug 2020
MoE publication type	A1 Journal article-refereed

Keywords

keyhole
dissimilar welding
microstructure
modified friction stir clinching
properties

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10.1016/j.vacuum.2020.109445

1-s2.0-S0042207X20302827-mainAccepted author manuscript, 5.12 MBLicence: CC BY-NC-ND

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title = "Effect of materials positioning on dissimilar modified friction stir clinching between aluminum 5754-O and 2024-T3 sheets",

abstract = "Dissimilar welding in lap joint configuration between AA5754-O and AA2024-T3 materials is successfully performed using novel technique of Modified Friction Stir Clinching (MFSC) process, wherein materials positioning is analyzed in this investigation. The results revealed that materials positioning in dissimilar MFSC between AA2024-T3 and AA5754-O greatly influences joint properties and grain formation behavior in size, shape and orientations. The superior protuberance leveling of keyhole without any defects and with highest fracture load of 1483 N having fascinating mixing features between AA5754-O and AA2024-T3 were obtained when AA2024-T3 material was kept on top of AA5754-O during second phase of MFSC. Dominated ductile fracture characterized as intergranular fracture mode with secondary cracks and quasi cleavage dimples were also observed in both MFSC.",

keywords = "keyhole, dissimilar welding, microstructure, modified friction stir clinching, properties",

author = "Zhou Haiyan and Kush Mehta",

year = "2020",

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doi = "10.1016/j.vacuum.2020.109445",

language = "English",

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journal = "Vacuum",

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T1 - Effect of materials positioning on dissimilar modified friction stir clinching between aluminum 5754-O and 2024-T3 sheets

AU - Haiyan, Zhou

AU - Mehta, Kush

PY - 2020/8/1

Y1 - 2020/8/1

N2 - Dissimilar welding in lap joint configuration between AA5754-O and AA2024-T3 materials is successfully performed using novel technique of Modified Friction Stir Clinching (MFSC) process, wherein materials positioning is analyzed in this investigation. The results revealed that materials positioning in dissimilar MFSC between AA2024-T3 and AA5754-O greatly influences joint properties and grain formation behavior in size, shape and orientations. The superior protuberance leveling of keyhole without any defects and with highest fracture load of 1483 N having fascinating mixing features between AA5754-O and AA2024-T3 were obtained when AA2024-T3 material was kept on top of AA5754-O during second phase of MFSC. Dominated ductile fracture characterized as intergranular fracture mode with secondary cracks and quasi cleavage dimples were also observed in both MFSC.

AB - Dissimilar welding in lap joint configuration between AA5754-O and AA2024-T3 materials is successfully performed using novel technique of Modified Friction Stir Clinching (MFSC) process, wherein materials positioning is analyzed in this investigation. The results revealed that materials positioning in dissimilar MFSC between AA2024-T3 and AA5754-O greatly influences joint properties and grain formation behavior in size, shape and orientations. The superior protuberance leveling of keyhole without any defects and with highest fracture load of 1483 N having fascinating mixing features between AA5754-O and AA2024-T3 were obtained when AA2024-T3 material was kept on top of AA5754-O during second phase of MFSC. Dominated ductile fracture characterized as intergranular fracture mode with secondary cracks and quasi cleavage dimples were also observed in both MFSC.

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KW - dissimilar welding

KW - microstructure

KW - modified friction stir clinching

KW - properties

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Effect of materials positioning on dissimilar modified friction stir clinching between aluminum 5754-O and 2024-T3 sheets

Abstract

Keywords

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