Effect of Input Heat of SMAW Process on Microstructure and Corrosion of Weld Metal API ۵L X۶۵ Steel Joints Coated with INCOLOY ۸۲۵ Superalloy
عنوان مقاله: Effect of Input Heat of SMAW Process
on Microstructure and Corrosion of
Weld Metal API ۵L X۶۵ Steel Joints
Coated with INCOLOY ۸۲۵ Superalloy
شناسه ملی مقاله: JR_ICAC-11-42_006
منتشر شده در در سال 1400
شناسه ملی مقاله: JR_ICAC-11-42_006
منتشر شده در در سال 1400
مشخصات نویسندگان مقاله:
خلاصه مقاله:
In this study, the effect of input heat of SMAW process on the microstructure and corrosion behavior of welded
metal API ۵L X۶۵ steel joints coated with INCOLOY ۸۲۵ superalloy was investigated. Welding with input heat
of ۱.۰۳, ۰.۹۹ and ۰.۹۴ kJ / mm was performed using E۷۰۱۸ filler metal by SMAW process. FESEM scanning
light and electron microscopy was used to study the microstructure. Evaluation of corrosion behavior of weld
metal was performed using TOEFL polarization test in ۳.۵% NaCl solution. The microstructural results showed
that the needle ferrite in the weld metal microstructure decreased with increasing inlet heat. While the values of
Wiedmann Statten ferrites are multifaceted and grain boundaries. It was found that increasing the inlet heat had
a negative effect and reduced the corrosion resistance of the weld metal.
کلمات کلیدی: X۶۵ steel, corrosion, electrode ۷۰۱۸, welding, SMAW Process, فولادX۶۵, خوردگی, الکترود ۷۰۱۸, جوشکاری, فرآیند SMAW
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1831862/