Refill friction stir spot welding(RFSSW):a review of processing,similar/dissimilar materials joining,mechanical properties and fracture mechanism

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外文摘要：Refill friction stir spot welding(RFSSW)provides a novel method to join similar and/or dissimilar metallic materials without a key-hole in the center of the joint.Having the key-hole free characterization,the similar/dissimilar RFSSW joint exhibits remarkable and endurable characteristics,including high shear strength,long fatigue life,and strong corrosion resistance.In the meanwhile,as the key-hole free joint has different microstructures compared with conventional friction stir spot welding,thus the RFSSW joint shall possess different shear and fatigue fracture mechanisms,which needs further investigation.To explore the underlying failure mechanism,the similar/dissimilar metallic material joining parameters and pre-treatment,mechanical properties,as well as fracture mechanisms under this novel technology will be discussed.In details,the welding tool design,welding parameters setting,and the influence of processing on the lap shear and fatigue properties,as well as the corrosion resistance will be mainly discussed.Moreover,the roadmap of RFFSW is also discussed.

外文关键词：

Refill friction stir spot weldingProcessingMechanismSimilar materials joiningDissimilar materials joiningMicrostructureMechanical propertyFracture mechanism

作者：

Yun-qiang Zhao、Hao-kun Yang、Aloshyn Andriia、Hong-hang Lo、Jia-xin Li

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作者单位：

Guangdong Provincial Key Laboratory of Advanced Welding Technology,China-Ukraine Institute of Welding,Guangdong Academy of Sciences,Guangzhou 510000,Guangdong,China

Smart Manufacturing Division,Hong Kong Productivity Council,Hong Kong 999077,China

E.O.Paton Electric Welding Institute of National Academy of Sciences of Ukraine,Kiev 01001,Kievan,Ukraine

基金：

International science and Technology Cooperation Project of Guangdong ProvinceInnovation and Technology Fund(ITF)National Natural Science Foundation of China

项目编号：

2022A0505050054ITP/021/19AP51905112

出版年：

2024

DOI：

10.1007/s42243-024-01209-2

钢铁研究学报(英文版)

钢铁研究总院

钢铁研究学报(英文版)

CSTPCD

影响因子：0.584

ISSN：1006-706X

年,卷(期)：2024.31(8)