TY - JOUR
T1 - Enhancing the tribological performance of the TiZrHfCuBe high entropy bulk metallic glass by Sn addition
AU - Du, Yin
AU - Zhou, Qing
AU - Pei, Xuhui
AU - Wang, Hanmin
AU - Wang, Haifeng
AU - Liu, Weimin
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/7
Y1 - 2022/7
N2 - Inheriting the advantages of bulk metallic glasses (BMGs) and high entropy alloys (HEAs), high entropy bulk metallic glasses (HE-BMGs) have sparked great interest in recent years. In this work, the evolutions of structural heterogeneity, thermal stability and mechanical property of the TiZrHfCuBe HE-BMG with minor Sn addition were characterized, and the corresponding tribological properties under different normal loads and frequencies were investigated. The results showed that minor Sn addition can significantly enhance wear resistance of the HE-BMG by improving its structural heterogeneity and mechanical properties in a rather limited composition range. When excessive Sn is added, plentiful crystal particles are precipitated in the amorphous matrix, and the wear mechanism of the HE-BMG changes from slight abrasive and oxidation wear to severe fatigue and oxidation wear, leading to dramatically declined wear resistance. These findings would provide guidance for the development of advanced HE-BMGs with unique properties.
AB - Inheriting the advantages of bulk metallic glasses (BMGs) and high entropy alloys (HEAs), high entropy bulk metallic glasses (HE-BMGs) have sparked great interest in recent years. In this work, the evolutions of structural heterogeneity, thermal stability and mechanical property of the TiZrHfCuBe HE-BMG with minor Sn addition were characterized, and the corresponding tribological properties under different normal loads and frequencies were investigated. The results showed that minor Sn addition can significantly enhance wear resistance of the HE-BMG by improving its structural heterogeneity and mechanical properties in a rather limited composition range. When excessive Sn is added, plentiful crystal particles are precipitated in the amorphous matrix, and the wear mechanism of the HE-BMG changes from slight abrasive and oxidation wear to severe fatigue and oxidation wear, leading to dramatically declined wear resistance. These findings would provide guidance for the development of advanced HE-BMGs with unique properties.
KW - High entropy bulk metallic glass
KW - Mechanical properties
KW - Sn addition
KW - Tribological behavior
KW - Wear mechanism
UR - http://www.scopus.com/inward/record.url?scp=85126283071&partnerID=8YFLogxK
U2 - 10.1016/j.triboint.2022.107529
DO - 10.1016/j.triboint.2022.107529
M3 - 文章
AN - SCOPUS:85126283071
SN - 0301-679X
VL - 171
JO - Tribology International
JF - Tribology International
M1 - 107529
ER -