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شریفی, محمدجعفر, آزادی, محمد, آزادی, محبوبه. (1399). تحلیل حساسیت متغیرهای عملیات حرارتی بر خواص آلیاژ آلومینیم سرسیلندر به‌روش رگرسیون. سامانه مدیریت نشریات علمی, 32(1), 57-74. doi: 10.22067/ma.v32i1.80171
محمدجعفر شریفی; محمد آزادی; محبوبه آزادی. "تحلیل حساسیت متغیرهای عملیات حرارتی بر خواص آلیاژ آلومینیم سرسیلندر به‌روش رگرسیون". سامانه مدیریت نشریات علمی, 32, 1, 1399, 57-74. doi: 10.22067/ma.v32i1.80171
شریفی, محمدجعفر, آزادی, محمد, آزادی, محبوبه. (1399). 'تحلیل حساسیت متغیرهای عملیات حرارتی بر خواص آلیاژ آلومینیم سرسیلندر به‌روش رگرسیون', سامانه مدیریت نشریات علمی, 32(1), pp. 57-74. doi: 10.22067/ma.v32i1.80171
شریفی, محمدجعفر, آزادی, محمد, آزادی, محبوبه. تحلیل حساسیت متغیرهای عملیات حرارتی بر خواص آلیاژ آلومینیم سرسیلندر به‌روش رگرسیون. سامانه مدیریت نشریات علمی, 1399; 32(1): 57-74. doi: 10.22067/ma.v32i1.80171

تحلیل حساسیت متغیرهای عملیات حرارتی بر خواص آلیاژ آلومینیم سرسیلندر به‌روش رگرسیون

مهندسی متالورژی و مواد
مقاله 5، دوره 32، شماره 1 - شماره پیاپی 23، اسفند 1399، صفحه 57-74    اصل مقاله (841.13 K)
نوع مقاله: علمی و پژوهشی
شناسه دیجیتال (DOI): 10.22067/ma.v32i1.80171
نویسندگان
محمدجعفر شریفی1؛ محمد آزادی2؛ محبوبه آزادی* 3
1کارشناسی ارشد، دانشکده مهندسی مکانیک، دانشگاه سمنان، سمنان.
2دانشکده مهندسی مکانیک، دانشگاه سمنان، سمنان.
3دانشکده مهندسی مواد و متالورژی، دانشگاه سمنان، سمنان
چکیده
در این مقاله به‌روش تحلیل رگرسیون، الگوهای مناسبی برای سختی و ریزساختار آلیاژ آلومینیم سرسیلندر ارائه شده است. توابع هدف، سختی، اندازۀ فازها و میزان کروی‌بودن و متغیرها در آزمایش‌های تجربی شامل دما و زمان انحلال و پیرسازی انتخاب شدند. نتایج نشان داد که بیشینه سختی (164ویکرز) زمانی به‌دست می­آید که نمونه 300دقیقه در دمای C° 510 قرار گیرد و سپس، در دمای C° 175 به‌مدت 360دقیقه پیرسخت شود. همچنین، عملیات حرارتی بهینه برای دستیابی به کمترین اندازۀ مساحت فازها و کروی‌تربودن فازها مشخص شد. نتایج تحلیل رگرسیون نشان داد که زمان پیرسختی مؤثرتر از دما در تغییرات سختی است و دمای انحلال نسبت به دمای پیرسختی فاکتور مهم‌تری محسوب می‌شود.
کلیدواژه‌ها
آلیاژ آلومینیم؛ تحلیل حساسیت؛ عملیات حرارتی؛ ریزساختار؛ سختی
سایر فایل های مرتبط با مقاله
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