Investigation the effect of surface treatment on the mechanical properties of coating

Aldriasawi, Salman Khayoon and Hasein, Abbas Nasser and Anead, Ashham Muhammed and Mohamad, Barhm (2024) Investigation the effect of surface treatment on the mechanical properties of coating. POLLACK PERIODICA : AN INTERNATIONAL JOURNAL FOR ENGINEERING AND INFORMATION SCIENCES, 19 (2). pp. 138-145. ISSN 1788-1994 (print); 1788-3911 (online)

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Abstract

The study analyzed surface treatment's impact on mechanical properties of Fe-based amorphous coatings. Specimens underwent six-hour treatments at 670 and 770 °C using vacuum heat. Results revealed distinct mechanical features in the coating: Vickers hardness reached 755, scanning electron microscope images displayed glassy phases, showcasing good wear resistance and compressive residual stresses at around −55 MPa. A remarkable 122% increase in compressive residual stress was noted through combined vacuum heat treatment and sandblasting. Volume wear decreased from the initial 18 to 14 mm3 after treatment at 670 °C followed by sandblasting, indicating a 30% enhancement in wear resistance. Yet, using vacuum heat treatment at 770 °C negatively impacted the coating's properties.

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