آلیاژ سازی مکانیکی و ساخت قطعات آلیاژی Zn-4Mn از طریق SPS به‌منظور استفاده در کاشتنی‌های کوتاه مدت

الموضوعات :

ناهید حسن زاده نعمتی ¹ (گروه مهندسی پزشکی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران)
محمد بابایی ² (دانشگاه آزاد اسلامی)
عرفان چیذری ³ (دانشگاه آزاد اسلامی)
داود ملک پژو ⁴ (گروه مهندسی پزشکی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران)

تاريخ الإرسال : 14 الأربعاء , ربيع الأول, 1443 تاريخ التأكيد : 03 الإثنين , رمضان, 1443 تاريخ الإصدار : 28 الخميس , جمادى الأولى, 1444

الکلمات المفتاحية: عملیات حرارتی, آلیاژ سازی مکانیکی, زیست تخریب پذیر, آلیاژ روی-منگنز, تف جوشی جرقه پلاسما,

ملخص المقالة :

آلیاژهای بر پایه روی (Zn) با کنترل فرآیند تولید قابلیت ظهور طیف گسترده ای از خواص مورد نیاز برای کاربرد در کاشتنی‌های کوتاه مدت درون تنی را دارند. برای این منظور در پژوهش حاضر پودر آلیاژی با ترکیب Wt Mn%4-Zn از طریق آلیاژسازی مکانیکی در سه زمان 10، 20 و 30 ساعت تهیه و قطعات آلیاژی از طریق فرآیند تف جوشی جرقه پلاسما (SPS) ساخته شدند. عملیات حرارتی قطعات تولیدی در سه دمای150، 200و250 درجه سانتی‌گراد انجام گردید. نمونه‌ها با استفاده از آزمون‌های پراش اشعه ایکس (XRD) ، خوردگی پلاریزاسیون دینامیکی و ارزیابی زنده مانی سلولی MTT مشخصه یابی شدند. همچنین مورفولوژی سطح نمونه ها با استفاده از میکروسکوپ الکترونی روبشی (SEM) مورد بررسی قرار گرفت. نتایج نشان داد افزایش زمان آسیاب به 30 ساعت ترکیبی همگن تر ایجاد نموده، همینطور نمونه عملیات حرارتی شده در دمای °C250 دارای بالاترین میزان مقاومت به خوردگی است. زنده مانی سلولی نمونه عملیات حرارتی شده در این دما نسبت به نمونه‌های دیگر زنده مانی بیشتری نشان داد. انتظار می رود نتایج این مطالعه در کاربردهای کوتاه مدت درون تنی مورد استفاده قرار گیرد.

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