چکیده مقاله
In this study, the effect of heat input SMAW process on the mechanical properties of welding metal API 5L X65 steel joints coated with INCOLOY 825 superalloy was investigated Welding with input heat of 1 03, 0 99 and 0 94 kJ / mm was performed using ENiCrMo 3 filler metals in root pass and E7018 in surface passes by SMAW process FESEM scanning light and electron microscopy was used to study the microstructure Impact and hardness tests were performed on macro and micro scales to evaluate changes in mechanical properties Microstructural results in root pass showed that large axial grains were formed with increasing input heat Also, with increasing inlet heat in the upper passes, the Acicular ferrite in the weld metal microstructure decreased, while the values of Wiedmann Statten ferrites increased multifaceted and grain boundary It was found that increasing the input heat had a negative effect and caused a decrease inthe mechanical properties of the weld metal
کلیدواژهها
نویسندگان
Ali Hosseini Far
Master Student, Department of Materials Engineering, Faculty of Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Reza Dehmolaei
Faculty member of Materials Engineering Department, Faculty of Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Mostafa Eskandari
Faculty member of Materials Engineering Department, Faculty of Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Mohammad Reza Tavakoli Shoushtari
Faculty member of Materials Engineering Department, Faculty of Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran
شیوه ارجاع
Hosseini Far, Ali and Dehmolaei, Reza and Eskandari, Mostafa and Tavakoli Shoushtari, Mohammad Reza,1400,Effect of SMAW process input heat on the microstructure and mechanical properties of welded metal API 5L X65 steel joints coated with INCOLOY 825 superalloy,4th International Conference on Welding and Non Destructive Testing & 22nd National Conference on Welding & Inspection & 11th National Conference on NDT,Isfahan
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مجموعه مقالات چهارمین کنفرانس بین المللی جوشکاری و آزمایش های غیرمخرب و بیست و دومین کنفرانس ملی جوش و بازرسی و یازدهمین کنفرانس ملی آزمایش های غیرمخرب18 اسفند 1400 · اصفهان