جوشکاری همزن اصطکاکی مونل 400: بررسی ریزساختار، زیرساختار و خواص مکانیکی

مهندسی متالورژی و مواد

مقاله 5، دوره 31، شماره 2 - شماره پیاپی 22، مهر 1399، صفحه 45-56   

نوع مقاله: علمی و پژوهشی

شناسه دیجیتال (DOI): 10.22067/ma.v31i2.68236

نویسنده

اکبر حیدرزاده^*

دانشگاه شهید مدنی آذربایجان

چکیده

در این تحقیق، خواص ناحیه جوش همزن اصطکاکی مونل 400 شامل ریزساختار، زیرساختار و سختی مورد بررسی و مقایسه با فلز پایه قرار گرفت. برای این منظور، ورق­ مونل 400 به ضخامت 2 میلیمتر تحت جوشکاری همزن اصطکاکی در سرعت چرخش ابزار 400 دور بر دقیقه و سرعت پیشروی ابزار 100 میلیمتر بر دقیقه قرار گرفت. برای آنالیز ریزساختار و مرزدانه ها در نواحی فلز پایه و ناحیه جوش از آنالیز پراش الکترون‌های برگشتی و برای بررسی زیرساختار از میکروسکوپ الکترونی عبوری بهره گرفته شد. همچنین، برای اندازه­گیری سختی از آزمون میکروسختی استفاده گردید. نتایج نشان دادند که ریزدانه شدن، افزایش چگالی نابجایی و افزایش فاکتور تیلور، عوامل اصلی در بهبود سختی ناحیه جوش می­باشند

کلیدواژه‌ها

مونل؛ جوشکاری همزن اصطکاکی؛ ریزساختار

سایر فایل های مرتبط با مقاله

5-hydarzade-Revised.pdf

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