Si含量对Fe-Cr-Si合金高温耐磨性能的影响

郝威, 龙海洋, 贵永亮, 宋春燕, 马汝成, 张学峰

doi:10.16577/j.issn.1001-1560.2024.0061

材料保护 >

2024 , Vol. 57 >Issue 3: 98 - 103

DOI: https://doi.org/10.16577/j.issn.1001-1560.2024.0061

研究篇

Si含量对Fe-Cr-Si合金高温耐磨性能的影响

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（1. 华北理工大学 a. 冶金与能源学院，b. 唐山市特种冶金及材料制备重点实验室，河北唐山063210;
2. 广东省科学院新材料研究所现代材料表面工程技术国家工程实验室
广东省现代表面工程技术重点实验室，广东广州510650）

龙海洋，讲师，博士研究生，主要从事方向为金属材料制备与性能，E-mail：lhy@ncst.edu.cn

收稿日期: 2023-06-11

修回日期: 2023-08-13

录用日期: 2023-09-13

网络出版日期: 2024-03-19

基金资助

河北省杰出青年科学基金(E2019209473)；河北省高校百名优秀创新人才支持计划(III)(SLRC2019030)；河北省人才工程培养资助项目（A201905010）

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Effect of Si Content on the High Temperature Wear Resistance of Fe-Cr-Si Alloy

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(1a. College of Metallurgy and Energy, 1b. Tangshan Key Laboratory of Special Metallurgy and Material Preparation,
North China University of Science and Technology, Tangshan 063210, China;
2. Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology, National Engineering Laboratory for Modern Materials Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Sciences, Guangzhou 510650, China)

LONG Haiyang, Lecturer，Ph.D., Research Focus：Preparation and Properties of Metallic Materials，E-mail：lhy@ncst.edu.cn

Received date: 2023-06-11

Revised date: 2023-08-13

Accepted date: 2023-09-13

Online published: 2024-03-19

Supported by

Hebei Natural Science Funds for Distinguished Young Scholar (E2019209473); One-hundred Excellent Talents of Innovation in Hebei Provincial Universities (III) (SLRC2019030); High-level Talent Support Plan of Hebei Province (A201905010)

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摘要

为研究Si含量对Fe-Cr-Si合金高温耐磨性能的影响，改善Fe-Cr-Si合金在高温环境下的耐磨性能，采用真空电弧熔炼制备了4种不同Si含量（原子分数5%、10%、15%、20%）的Fe-Cr-Si合金，研究了Si含量变化对其高温耐磨性能的影响。结果表明，4种Fe-Cr-Si合金均由单相组织构成，Si含量的增加使得合金硬度逐渐升高，并且促进了金属硅化物Fe3Si的形成。随着Si含量的增加，Fe-Cr-Si合金的摩擦系数和磨损率逐渐减小，磨损机制由剥落磨损转变为氧化磨损、磨粒磨损和黏着磨损。

关键词： Fe-Cr-Si合金; 金属硅化物; 高温耐磨性能

本文引用格式

郝威, 龙海洋, 贵永亮, 宋春燕, 马汝成, 张学峰 . Si含量对Fe-Cr-Si合金高温耐磨性能的影响[J]. 材料保护, 2024 , 57(3) : 98 -103 . DOI: 10.16577/j.issn.1001-1560.2024.0061

Abstract

In order to study the effect of Si content on the high temperature wear resistance of Fe-Cr-Si alloy, and improve the wear resistance of Fe-Cr-Si alloy in high temperature environment, the four kinds of Fe-Cr-Si alloys with different Si contents (5%, 10%, 15% and 20%, atomic fraction) were manufactured by vacuum arc melting, and the effect of the variation of Si content on their high temperature wear resistance was investigated. Results showed that all of the four Fe-Cr-Si alloys consisted of single-phase organization. The increase of Si content gradually improved the hardness of the alloy and promoted the formation of metal silicide Fe3Si. Furthermore, with the increase of Si content, the friction coefficient and wear rate of the Fe-Cr-Si alloys gradually declined, and the wear mechanism changed from spalling wear to oxidation wear, abrasive wear and adhesive wear.

Key words： Fe-Cr-Si alloy; metal silicide; high temperature wear resistance

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