چکیده مقاله
In this study, metallurgical investigation of the joint interface resulted from explosive welding of phosphorus bronze to steel was investigated The effect of explosive welding variables such as explosive charge amount and stand off distance on interface shape, microstructure and shear strength were investigated To investigate the effects of these two parameters, plates were welded with stand off distance of 2 and 3 mm and explosive charge thicknesses of 35, 40 and 45 mm The results showed that with increasing stand off distance and explosive charge, the velocity and impact angle increased and this phenomenon led to the interface transforming from a smooth to a wavy state, resulting in melted and separated regions The results obtained from scanning electron microscope SEM images showed that with increasing stand off distance and collision velocity, the length and height of the waves at the interface increased Energy dispersive X ray spectroscopy EDS analysis showed that no intermetallic compounds were formed at the interface, indicating a good quality bond The results of the micro hardness test also indicated that the hardness around the joint increased by 25% due to plastic deformation and work hardening caused by impact The shear strength test revealed that in all samples, failure occurred in the bronze layer and no failure occurred due to separation of the samples from the interface
کلیدواژهها
نویسندگان
Ebrahim Mohammadi
Master's Student, School of Metallurgy and Materials Engineering, School of Engineering, University of Tehran, Iran
S. A. A. Akbari Musavi
Associate Professor, School of Metallurgy and Materials Engineering, School of Engineering University of Tehran, Iran
شیوه ارجاع
Mohammadi, Ebrahim and Akbari Musavi, S. A. A.,1404,Investigation of the effect of stand-off distance and explosive charge on the interface and mechanical properties of dissimilar joining of phosphorus bronze to St37 steel using explosive welding,8th International Conference on Welding and Non Destructive Testing & 26th National Conference on Welding & Inspection & 15th National Conference on NDT & 4th National Conference on Additive Manufacturing,Tehran
ارائهشده در
مجموعه مقالات هشتمین کنفرانس بین المللی جوشکاری و آزمایش های غیرمخرب، بیست و ششمین کنفرانس ملی جوش و بازرسی، پانزدهمین کنفرانس ملی آزمایش های غیرمخرب و چهارمین کنفرانس ملی ساخت افزایشی20 بهمن 1404 · تهران