Quenching Temperature and Cooling Rate Effects on Thermal Rejuvenation of Metallic Glasses

被引：5
作者：
Kim, Yong Hak [1 ,2 ]
Lim, Ka Ram [1 ]
Lee, Dong-Won [1 ]
Choi, Yoon Suk [2 ]
Na, Young Sang [1 ]
机构：
[1] Korea Inst Mat Sci, Adv Met Div, Chang Won 51508, South Korea
[2] Pusan Natl Univ, Sch Mat Sci & Engn, Busan 46241, South Korea
来源：
METALS AND MATERIALS INTERNATIONAL | 2021年 / 27卷 / 12期
基金：
新加坡国家研究基金会;
关键词：
Differential scanning calorimetry; Metallic glass; Relaxation; Rejuvenation; Quenching; AMORPHOUS ALLOY; LIQUID; RELAXATION; TRANSITION; OXIDATION; BEHAVIOR; KINETICS; RANGE;
D O I：
10.1007/s12540-020-00797-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Thermal rejuvenation was explored when Zr(62)Cu(17)Ni(13)Al(8)metallic glass was rapidly heated to at least 100 K higher than its glass transition temperature at a heating rate of 60 K/s and then quenched into copper molds. The effect of the quenching temperature and the cooling rate on rejuvenation was evaluated using transmission electron microscopy images, differential scanning calorimetry, density measurements, and Vickers indents. This study suggests that the density of flow units is mainly affected by the final cooling rate rather than the quenching temperature. Graphic
引用
收藏
页码：5108 / 5113
页数：6
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