چکیده مقاله
Transition joints between commercial pure titanium CP Ti and 304 stainless steel 304 SS have been produced employing diffusion welding technique in the temperature range of 800 950 ºC, under a uniaxial pressure of 7 MPa in argon atmosphere The evaluation of the transition joints has been carried out using shear tests The shear strength was found to be a function of joint surface area and volume fraction of brittle intermetallic phases such as σ, FeTi, Fe2Ti,… which have been characterized using scanning electron microscopy and energy dispersive spectroscopy Increasing the temperature and time of the diffusion welding process increased joint surface area and accelerated elemental diffusion across the joint interface which resulted in higher shear strength But as the volume fraction of the brittle intermetallic phases and Kirkendal voids increased at higher temperature and time, the bond shear strength decreased Optimum shear strength was found to be 168 MPa which related to the joint produced at temperature and time of 900ºC and 30 min, respectively
کلیدواژهها
نویسندگان
M.R Soltan Mohammadi
MSc , Student Faculty of Engineering, University of Tehran
S.F Kashani Bozorg
Assistant Professor, Faculty of Engineering, University of Tehran
M Fazel Najafabadi
Ph D , Student Faculty of Engineering, University of Tehran
شیوه ارجاع
Soltan Mohammadi, M.R and Kashani Bozorg, S.F and Fazel Najafabadi, M,1384,Effects of Time and Temperature on the Shear Strength of Dissimilar Diffusion Joints of CPTi to Stainless Steel.,01st Tehran International Congress on Manufacturing Engineering (TICME2005),Tehran
ارائهشده در
مجموعه مقالات اولین کنفرانس بین المللی و هفتمین کنفرانس ملی مهندسی ساخت و تولید1 فروردین 1384 · تهران