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Author Jin, Yajuan ♦ Li, Ruifeng ♦ Yu, Zhishui ♦ Wang, Yu
Source SpringerLink
Content type Text
Publisher Springer US
File Format PDF
Copyright Year ©2016
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword AISI 304L stainless steel ♦ butt joint ♦ galvanized steel ♦ microstructure ♦ plasma arc brazing ♦ Characterization and Evaluation of Materials ♦ Tribology, Corrosion and Coatings ♦ Quality Control, Reliability, Safety and Risk ♦ Engineering Design
Abstract Plasma arc brazing is used to join the AISI 304L stainless steel and galvanized steel plate butt joints with the CuSi3Mn1 filler wire. The effect of parameters on weld surface appearance, interfacial microstructure, and composition distribution in the joint was studied. The microhardness and mechanical tests were conducted to determine the mechanical properties of the welded specimens. The results indicated that good appearance, bead shape, and sufficient metallurgical bonding could be obtained when the brazing process was performed with a wire feeding speed of 0.8 m/min, plasma gas flow rate of 3.0 l/min, welding current of 100 A, and welding speed of 27 cm/min. During plasma arc brazing process, the top corner of the stainless steel and galvanized steel plate were heated and melted, and the melted quantity of stainless steel was much more than that of the galvanized steel due to the thermal conductivity coefficient difference between the dissimilar materials. The microhardness test results shows that the microhardness value gradually increased from the side of the galvanized steel to the stainless steel in the joint, and it is good for improving the mechanical properties of joint. The tensile strength was a little higher than that of the brazing filler, and the fracture position of weld joint was at the base metal of galvanized steel plate.
ISSN 10599495
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2016-03-03
Publisher Place New York
e-ISSN 15441024
Journal Journal of Materials Engineering and Performance
Volume Number 25
Issue Number 4
Page Count 9
Starting Page 1327
Ending Page 1335

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Source: SpringerLink