Enhance mechanical properties of refill friction stir spot welding joint of alclad 7050/2524 aluminum via suspension rotating process

Dan Chen; Jinglong Li; Jiangtao Xiong; Junmiao Shi; Jianxin Dou; Huaxia Zhao

doi:10.1016/j.jmrt.2021.03.067

Enhance mechanical properties of refill friction stir spot welding joint of alclad 7050/2524 aluminum via suspension rotating process

Dan Chen, Jinglong Li, Jiangtao Xiong, Junmiao Shi, Jianxin Dou, Huaxia Zhao

School of Materials Sience and Engineering

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

19 Scopus citations

Abstract

Alclad layer is a challenge to ensure the mechanical properties of refill friction stir spot welding (RFSSW) alclad 7050/2524 joint. In this study, RFSSW with suspension rotating process (SRP) was designed to improve the mechanical properties by strengthening the alclad layer. The thermal cycles, microstructures and mechanical properties of the joints welded without and with SRP were compared. The results indicated that SRP increased the high temperature dwell time of the stir zone bottom, which promoted more alloy being stirred into and mixing with the alclad, beneficial for strengthening the alclad. When with SRP, the tensile shear strength of joint reached 11 kN, improved by about 30% compared with joint without SRP.

Original language	English
Pages (from-to)	1243-1251
Number of pages	9
Journal	Journal of Materials Research and Technology
Volume	12
DOIs	https://doi.org/10.1016/j.jmrt.2021.03.067
State	Published - 2021

Keywords

Alclad aluminum
Mechanical properties
Refill friction stir spot welding

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10.1016/j.jmrt.2021.03.067

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title = "Enhance mechanical properties of refill friction stir spot welding joint of alclad 7050/2524 aluminum via suspension rotating process",

abstract = "Alclad layer is a challenge to ensure the mechanical properties of refill friction stir spot welding (RFSSW) alclad 7050/2524 joint. In this study, RFSSW with suspension rotating process (SRP) was designed to improve the mechanical properties by strengthening the alclad layer. The thermal cycles, microstructures and mechanical properties of the joints welded without and with SRP were compared. The results indicated that SRP increased the high temperature dwell time of the stir zone bottom, which promoted more alloy being stirred into and mixing with the alclad, beneficial for strengthening the alclad. When with SRP, the tensile shear strength of joint reached 11 kN, improved by about 30% compared with joint without SRP.",

keywords = "Alclad aluminum, Mechanical properties, Refill friction stir spot welding",

author = "Dan Chen and Jinglong Li and Jiangtao Xiong and Junmiao Shi and Jianxin Dou and Huaxia Zhao",

note = "Publisher Copyright: {\textcopyright} 2021 The Authors.",

year = "2021",

doi = "10.1016/j.jmrt.2021.03.067",

language = "英语",

volume = "12",

pages = "1243--1251",

journal = "Journal of Materials Research and Technology",

issn = "2238-7854",

publisher = "Elsevier Editora Ltda",

}

TY - JOUR

T1 - Enhance mechanical properties of refill friction stir spot welding joint of alclad 7050/2524 aluminum via suspension rotating process

AU - Chen, Dan

AU - Li, Jinglong

AU - Xiong, Jiangtao

AU - Shi, Junmiao

AU - Dou, Jianxin

AU - Zhao, Huaxia

PY - 2021

Y1 - 2021

N2 - Alclad layer is a challenge to ensure the mechanical properties of refill friction stir spot welding (RFSSW) alclad 7050/2524 joint. In this study, RFSSW with suspension rotating process (SRP) was designed to improve the mechanical properties by strengthening the alclad layer. The thermal cycles, microstructures and mechanical properties of the joints welded without and with SRP were compared. The results indicated that SRP increased the high temperature dwell time of the stir zone bottom, which promoted more alloy being stirred into and mixing with the alclad, beneficial for strengthening the alclad. When with SRP, the tensile shear strength of joint reached 11 kN, improved by about 30% compared with joint without SRP.

AB - Alclad layer is a challenge to ensure the mechanical properties of refill friction stir spot welding (RFSSW) alclad 7050/2524 joint. In this study, RFSSW with suspension rotating process (SRP) was designed to improve the mechanical properties by strengthening the alclad layer. The thermal cycles, microstructures and mechanical properties of the joints welded without and with SRP were compared. The results indicated that SRP increased the high temperature dwell time of the stir zone bottom, which promoted more alloy being stirred into and mixing with the alclad, beneficial for strengthening the alclad. When with SRP, the tensile shear strength of joint reached 11 kN, improved by about 30% compared with joint without SRP.

KW - Alclad aluminum

KW - Mechanical properties

KW - Refill friction stir spot welding

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U2 - 10.1016/j.jmrt.2021.03.067

DO - 10.1016/j.jmrt.2021.03.067

M3 - 文章

AN - SCOPUS:85106878098

SN - 2238-7854

VL - 12

SP - 1243

EP - 1251

JO - Journal of Materials Research and Technology

JF - Journal of Materials Research and Technology

ER -

Enhance mechanical properties of refill friction stir spot welding joint of alclad 7050/2524 aluminum via suspension rotating process

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Keywords

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