Microstructure, mechanical properties and high temperature tribological behavior of NiAl-based composites

被引：7
作者：
Li, Bo [1 ]
Guo, Hongjian [2 ]
Li, Cong [1 ]
Gao, Yimin [1 ]
Feng, Lihan [1 ]
Pan, Yinglong [1 ]
Liang, Chenyu [3 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Sch Mat Sci & Engn, Xian, Peoples R China
[2] Lanzhou City Univ, Sch Bailie Mech Engn, Lanzhou, Peoples R China
[3] Xi An Jiao Tong Univ, Instrumental Anal Ctr, Xian, Peoples R China
来源：
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2022年 / 20卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Sintering process; Tribological properties; Tribo-oxidation reactions; Glaze film; High -temperature lubricant; SELF-LUBRICATING COMPOSITES; SELECT MAX PHASES; PLASMA; COATINGS; TI3SIC2; TI3ALC2; AG; PERFORMANCE; FRICTION; AMBIENT;
D O I：
10.1016/j.jmrt.2022.08.113
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
NiAl-based composites were fabricated in-situ using vacuum hot-press sintering technology. The Ti3AlC2, TiC and Ti3Al were formed during the sintering process, and the intensity of peaks grow higher with the addition of Al, Ti and C powder contents, respectively. The microhardness of the composites was significantly improved by adding these powders and gradually increased with the incremental content of Al, Ti and C powders. Meanwhile, the tribological properties of the composites at high temperature were also improved. The worn surface formed during the tribo-oxidation reactions and produced the glaze film in the high-temperature friction process, which could improve the composites' tribological properties. The TiO2 and Al2O3 phases were observed on the worn surface after the friction test, which could act as a high-temperature lubricant and improve the composites' tribological properties.(c) 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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收藏
页码：3255 / 3263
页数：9
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