Mechanical Relaxations in Metallic Glasses at Higher Temperatures

摘要

Low frequency internal friction (IF) of metallic glasses was measured from the room temperature through the glass transition up to the crystallization. Materials adopted were six kinds of metallic glasses with various compositions and largely different glass-forming abilities (GFA). Several IF peaks were observed overlapping to the background IF which increased with temperature. The temperature dependence of background IF was analyzed and the result was related to GFAs of materials.