effect of pulsed GTA welding on microstructure and mechanical properties of AISI 316 stainless steel welds
محل انتشار: کنگره بین المللی جوش و روشهای اتصال
سال انتشار: 1388
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,278
فایل این مقاله در 9 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
IIWC01_041
تاریخ نمایه سازی: 6 مهر 1391
چکیده مقاله:
THE CURRent work was carried out to investigat the effects of pulse current on temperature distribution microstructure and mechanical properties of 316 stainless steel welds in gas tungsten arc welding process two different welding techniques have been used to fabricate acceptable joints and they are: continuous current GTAW (CCGTAW) ,pulsed current GTAW (PCGTAW.temperature distribution of both techniques was analysed also microstructures and mechanical properties of all the welds were studies optical microscopy images show that current pulsing leads to relatively finer and more equi -axed grain structure in welds . grain refinement is accompanied by an improvement of hardness in weld the measurement of delta -ferrite content of welds show that pulsed current cause a slight increase of delta -ferrite , which is accompanied by a slight reduction of tensile strength and ductility.
کلیدواژه ها:
gas tungsten are welding pulsed current ، 316stainless steel ، microstructure ، temperature distribution ، mechanical properties ، delta -ferrite content ، grain refinement
نویسندگان
h.r zareie
university of tehran
m shamanian
isfahan university of tech