Effects of heavy rare earth elements on properties of Fe41Co7Cr15Mo14C15B6RE2 41 Co 7 Cr 15 Mo 14 C 15 B 6 RE 2 (RE = Y, Lu, Tm, Tb) bulk metallic glasses

被引：1

作者：

Ma, Zihao ^{[1
]}

Li, Qiang ^{[1
,3
]}

Xie, Lei ^{[1
,2
]}

Chang, Chuntao ^{[4
]}

Ma, Xu ^{[2
]}

Zhang, Guan ^{[1
,3
]}

机构：

[1] Xinjiang Univ, Sch Mat Sci & Engn, Urumqi 830017, Xinjiang, Peoples R China

[2] Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830017, Xinjiang, Peoples R China

[3] Xinjiang Univ, Xinjiang Environm Funct Mat Engn Technol Res Ctr, Urumqi 830017, Xinjiang, Peoples R China

[4] Dongguan Univ Technol, Sch Mech Engn, Dongguan 523808, Guangdong, Peoples R China

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2024年 / 641卷

基金：

中国国家自然科学基金;

关键词：

Fe-based bulk metallic glasses; Heavy rare earth elements; Corrosion resistance; Wear resistance; ENTROPY; BEHAVIORS; ADDITIONS; YTTRIUM; SIZE;

D O I：

10.1016/j.jnoncrysol.2024.123136

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This study systematically explores the impact of different heavy rare earth (RE) elements (Y, Lu, Tm, Tb) on Fe41Co7Cr15Mo14C15B6RE2 41 Co 7 Cr 15 Mo 14 C 15 B 6 RE 2 BMGs bulk metallic glasses (BMGs), labeled A-Y, A-Lu, A-Tm, and A-Tb, respectively. These Fe-based BMGs, fabricated as rods (10 mm diameter) and plates (3 mm thickness) via copper mold suction casting, exhibit significant glass-forming ability. These BMGs exhibited high compressive strength (3.5 to 3.9 GPa) and Vickers microhardness (1260 to 1405 HV0.2), 0.2 ), with A-Lu, A-Tm, and A-Tb showing improved strength and hardness compared to A-Y. Electrochemical tests revealed superior corrosion resistance compared to stainless steels 316 and 304, particularly for A-Lu. X-ray photoelectron spectroscopy analysis suggests that the substitution of Lu and Tm for Y decreases unstable metal ion oxides, enhancing corrosion resistance. Additionally, Fe-based BMGs, especially A-Lu, demonstrated superior wear performance compared to conventional stainless steel 316, attributed to the formation of a protective oxide layer and high inherent hardness.

引用

页数：12