چکیده مقاله
GTAW process is one of the most widely used welding processes in which material is prone to stress corrosion cracking SCC Stress corrosion indicates cracking due tocombined effect of stress and corrosion Stresses may be in form of applied or residual Many rupture incidents have occurred due to this type of cracks Effect of ultrasonicwaves were studied on GTAW welded SS316L metal, in this paper Two samples were healed by post weld ultrasonic treatment, two samples by post weld heat treatment andtwo were considered as control samples with no post treatment Residual stress of all six pieces were measured by XRD method Afterwards, samples were placed in corrosion environment Results show that residual stress was decreased to 54 3% using heat treatment whereby this decreased to 58 7% by ultrasonic waves It was also shown that untreated samples cracked after 720 hours, while no crack was seen in post weld ultrasonic treated samples
کلیدواژهها
نویسندگان
Adel Heidari
Technical inspector, Bina Azmoon Kara co, Iran
Nader Bolhasani
Technical inspector, Bina Azmoon Kara co, Iran
Najmedddin Arab
Assistant Professor, Faculty of Engineering, Saveh Branch, Islamic Azad University, Iran
شیوه ارجاع
Heidari, Adel and Bolhasani, Nader and Arab, Najmedddin,1399,Investigating the effect of ultrasonic stress relief in gtaw welding process and stress cracking corrosion (SCC) on stainless steel 316L and its comparison with thermal method,3rd International Conference on Welding and Non-Destructive Testing of Iran, 21st National Conference on Welding and Inspection and 10th National Conference on Non-Destructive Testing,Isfahan
ارائهشده در
مجموعه مقالات سومین کنفرانس بین المللی جوشکاری و آزمایش های غیرمخرب ایران، بیست و یکمین کنفرانس ملی جوش و بازرسی و دهمین کنفرانس ملی آزمایش های غیرمخرب13 اسفند 1399 · اصفهان