غلامرضا خلج
استادیار، گروه مهندسی مواد، دانشگاه آزاد اسلامی، واحد ساوه، ساوه، ایران
[ 1 ] - مدل سازی دگرگونی تجزیه آستنیت در منطقه متاثر از حرارت جوش دو فولاد خط لوله X65 و X70
در این پژوهش شبیه‌سازی منطقه متاثر حرارتی جوشکاری ، بر مبنای شرایط عملی جوشکاری زیرپودری چهار سیمه در دو فولاد میکروآلیاژی X65 و X70، صورت گرفت. در ابتدا تحلیل چرخه‌های حرارتی منطقه متاثر حرارتی صورت گرفت. با اعمال چرخه های حرارتی گرم و سرد کردن تا دماهای قله 950، 1150 و °C1350، در دستگاه دیلاتومتری، رفتار دگرگونی و ساختار میکروسکوپی مورد مطالعه قرار گرفت. با افرایش دمای قله در دگرگونی، با وجود...
[ 2 ] - بررسی تاثیر مقدار کرنش و دمای نورد بر ریزساختار و سختی اتصال انفجاری ورق های فولاد 304- مس
In this research, the effect of the amount of strain and rolling temperature on the microstructure and the hardness of the explosive bonding of 304 stainless steel- copper sheets was investigated. Explosive welding was performed with two explosive thickness (46 and 79 mm) and stand-off distance (2 and 3 mm). The results of the optical microscope after welding showed that all samples had a commo...
[ 3 ] - بررسی تاثیر فاصله توقف جوشکاری انفجاری بر ساختار و رفتار خوردگی اتصال آلومینیوم 5083- مس در محیط نمک
In the present study, the effect of explosive welding stand-off distance on the structure and corrosion behavior of aluminum alloy 5083-copper joint is studied. The microstructure was examined by optical microscopy and scanning electron microscopy and corrosion behavior with poteniodynamic polarization tests and electrochemical impedance spectroscopy in a salt environment. Microscopic results s...
[ 4 ] - Influence of Rolling on Microstructure and Mechanical Properties of Bronze-Steel Explosive Welded Sheets
In this paper, the microstructure and mechanical properties of the plain carbon steel-bronze interface of explosive welding and rolling were investigated. Explosive connection was done at two stop distances and with two different thicknesses of explosive material. Rolling of the welded composite was done at both ambient and preheated temperatures of 300 °C and with a constant thickness reductio...
[ 5 ] - Influence of Rolling on Microstructure and Mechanical Properties of Bronze-Steel Explosive Welded Sheets
In this paper, the microstructure and mechanical properties of the plain carbon steel-bronze interface of explosive welding and rolling were investigated. Explosive connection was done at two stop distances and with two different thicknesses of explosive material. Rolling of the welded composite was done at both ambient and preheated temperatures of 300 °C and with a constant thickness reductio...
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