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- W2376274156 abstract "In order to study the microstructure of copper / steel welding joint and realized the high quality connection of copper / steel dissimilar materials. The research on plasma arc welding of dissimilar materials between T2 copper and 304 stainless steel was carried out with LHM-200 plasma arc system. After that the formation and microstructure of the weld joint were analyzed by Optical microscope and Energy Dispersive Spectrometer. The results indicated that the copper side of the plasma arc welding of copper-steel dissimilar materials is straight seam,and the steel side was half-χ-shape,the interface of the copper side with weld seam is spiral shape,during the joint formation process,the migration and diffusion of Cu elements mainly driven by the flow of liquid steel; the microstructure of the joints included austenitic,diffuse distribution of block-shape and granular-shape solid solution of copper and steel,and black fishbone-shape α-phase ferrite microstructure,and the weld area organizations mainly is iron-rich α-phase,iron-rich γ-phase and copper-rich e-phase solid solution; The optical welding parameters were 65 A of weld current,4 mm / s of welding speed,0. 25 L / min and 0. 75 L / min of gas flow and plasma flow respectively,and the tensile strength of welded joint reached 174 MPa with these parameters." @default.
- W2376274156 created "2016-06-24" @default.
- W2376274156 creator A5021627475 @default.
- W2376274156 date "2015-01-01" @default.
- W2376274156 modified "2023-09-28" @default.
- W2376274156 title "Microstructure of dissimilar material joint with T2 copper and steel 304 for plasma arc welding" @default.
- W2376274156 hasPublicationYear "2015" @default.
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