Study on enhanced wear resistance of FeCoCrNi2MoSi high entropy alloy coatings induced by nano-layered eutectic and Laves phase

被引：22

作者：

Chen, Di ^{[1
]}

Cui, Xiufang ^{[1
]}

Guan, Yajie ^{[1
]}

Li, Xinyao ^{[1
]}

Ma, Sen ^{[2
]}

Dai, Zhongtao ^{[1
]}

Song, Ziyu ^{[1
]}

Feng, Litong ^{[1
]}

Jin, Guo ^{[1
]}

Liu, Jinna ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Key Lab Superlight Mat & Surface Technol, Minist Educ, Harbin 150001, Peoples R China

[2] AVIC Shenyang Aircraft Design & Res Inst, Shenyang 110035, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2024年 / 194卷

基金：

中国国家自然科学基金;

关键词：

Laser cladding; High -temperature wear; High entropy alloy coating; Lamellar eutectics; TRIBOLOGICAL PROPERTIES; MECHANICAL-PROPERTIES; MICROSTRUCTURE; TEMPERATURE; BEHAVIOR; DEFORMATION; STABILITY; STRENGTH; FRACTURE; OXIDE;

D O I：

10.1016/j.triboint.2024.109534

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Wear is one of the primary challenges for high -temperature working components. In this paper, FeCoCrNi2MoSi eutectic high -entropy alloy coatings were successfully prepared by introducing MoNiSi ternary silicides with Laves structure into FeCoCrNi high -entropy alloys using laser cladding technology. The alloy achieves a balance of strength and toughness through the nanoscale eutectic structure with alternating FCC and Laves phases. Tribological experiments conducted over a wide temperature range from 25 degrees C to 800 degrees C show that the synergistic effect of the nano -lamellar structure and the alternating soft and hard structure makes the coating have excellent wear resistance at room temperature. The improvement of wear resistance at high temperatures (800 degrees C) is mainly due to the formation of the oxide film on the coatings.

引用

页数：12

共 75 条

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