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《Electric Welding Machine》 2019-08
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Friction stir welding of Al/Cu pipes and the formation mechanism of intermetallic compounds

JIANG Muyang;CHEN Ke;CHEN Binxi;WANG Min;SHAN Aidang;ZHANG Lanting;School of Materials Science and Engineering,Shanghai Jiao Tong University;  
This work developed a friction-stir-welding system for thin wall pipes and realized high performance Al/Cu pipe joining.Five kinds of intermetallic compounds(IMCs) with different characteristics has been found through macro-/micro-scale observation.The contents of IMCs have been detected to be Al_2Cu,Al_4Cu_9 and AlCu(small amount) through X ray diffraction and nanoindentation.Different shear effect and pressure effect by welding tool were found to be the main formation mechanisms of different kinds of IMCs through further research and analysis.
【Fund】: 国家自然科学基金青年基金(51204108)
【CateGory Index】: TG453.9
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