چکیده مقاله
The resistance spot welding method is one of the common methods in the automotive industry Therefore, in this paper, two alloys, DP 980 and S 500 MC were connected by the resistance spot welding method, and the corrosion behavior of this dissimilar joint was investigated and evaluated for use in the automotive industry The microstructure properties of the base metals and the joints were studied using an optical microscope Also, in order to evaluate the hardness due to microstructural changes, a microhardness test was performed Evaluation of corrosion behavior of base metals and the joints wasperformed using a potentiodynamic polarization test in two media of 0 1 M NaCl 0 1 M H2SO4 and 0 1 M NaCl 0 1 M NaOH The results of the electrochemical studies in the acidic environment containing chloride ions showed low chemical stability of the all tested samples While the tested samples showed much better behavior in the alkaline environment containing chloride ions due to the formation of the passive layer Among the tested samples, the S 500 MC steel showed the best corrosion behavior and the welded DP 980 alloy showed the worst corrosion behavior due to microstructural differences
کلیدواژهها
نویسندگان
Tohid Rajabi
Master of science student, Department of materials engineering, Isfahan University of Technology, Isfahan
Masoud Atapour
Associate Professor, Department of materials engineering, Isfahan University of Technology, Isfahan
شیوه ارجاع
Rajabi, Tohid and Atapour, Masoud,1400,Microstructure and electrochemical behavior of dissimilar bonding of DP 980 and S 500 MC steels in chloride ion containing environments,4th International Conference on Welding and Non Destructive Testing & 22nd National Conference on Welding & Inspection & 11th National Conference on NDT,Isfahan
ارائهشده در
مجموعه مقالات چهارمین کنفرانس بین المللی جوشکاری و آزمایش های غیرمخرب و بیست و دومین کنفرانس ملی جوش و بازرسی و یازدهمین کنفرانس ملی آزمایش های غیرمخرب18 اسفند 1400 · اصفهان