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حمیدرضا فرنوش

چکیده

در این پژوهش، از لایه‌نشانی الکتروفورتیک برای ایجاد پوشش¬های نانوکامپوزیتی HA-TiO2 با ترکیب 0، 10 و 20 درصد وزنی تیتانیا بر روی زیرلایه Ti-6Al-4V استفاده شد. آزمون ریزخراش در حالت نیروی پیشرونده برای بررسی چسبندگی، تریبولوژی و اندازه¬گیری چقرمگی شکست پوشش¬ها انجام شد. مقادیر فشار تماسی بحرانی در آزمون ریزخراش برای آغاز ایجاد ترک و جدا شدن لایه رسوبی از سطح با افزودن تیتانیا در ساختار پوشش افزایش یافت. بر اساس تئوری مکانیک شکست الاستیک خطی بیشترین مقدار چقرمگی شکست در نمونه کامپوزیتی با 20 درصد وزنی تیتانیا حاصل شد. شیارهای حاصل از آزمون ریزخراش، توسط میکروسکوپ الکترونی روبشی مطالعه شدند.

جزئیات مقاله

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ارجاع به مقاله
فرنوشح. (۱۳۹۶-۱۲-۰۸). رفتار میکروتریبولوژی پوشش‌های الکتروفورتیک نانوکامپوزیتی HA-TiO2. مهندسی متالورژی و مواد, (29), 137-150. https://doi.org/10.22067/ma.v0i29.43430
نوع مقاله
علمی و پژوهشی