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中文摘要: 采用销 - 盘往复干摩擦磨损试验研究了 30wt.% 碳化物含量的由原位自生 (Cr,Fe)7C3 颗粒弥散强化的
(Cr,Fe)7C3/Fe3Al 金属陶瓷涂层的形貌、 硬度， 以及室温和 400℃下的磨损性能。 为了便于对比， 同时测定了不同
温度下的 RuT350 基体、 Fe3Al 涂层硬度。 此外， 在相同条件下， 测定了室温和 400℃时 RuT350 基体和 NiCr-MoCr3C2 涂层的摩擦磨损情况。 结果表明， (Cr,Fe)7C3/Fe3Al 涂层硬度随温度升高衰减较慢， 且在相同的接触载荷下，
(Cr,Fe)7C3/Fe3Al 涂层的摩擦系数明显低于 RuT350 铸铁， 其与摩擦副的总磨损量 400℃ 下仅为 RuT350 基体与摩
擦副总磨损量的 45.8%， 其室温与 400℃ 下的耐磨性优于 Fe3Al 涂层和 NiCr-Mo-Cr3C2 涂层。 (Cr,Fe)7C3/Fe3Al 具
有较高的中高温耐磨性主要源于金属间化合物 Fe3Al 粘结相在特定的温度范围具有异于普通合金的 R 现象， 致使
(Cr,Fe)7C3/Fe3Al 具有较高的高温硬度， 并存在大量弥散分布的细小 (Cr, Fe)7C3 晶粒， 不易造成陶瓷颗粒从金属相
中脱落在磨损表面形成第三粒的协同机制。
中文关键词: 磨损性能 涂层 摩擦系数 原位自生 Cr7C3/Fe3Al
Abstract:The morphology, hardness, and the wear properties at room temperature and 400℃ of the (Cr,Fe)7C3/
Fe3Al cermet coating with 30 wt.% in-situ (Cr,Fe)7C3 particles dispersion strengthening was investigated by pin
to disk reciprocating wear test. For comparison, the hardness of RuT350 substrate and Fe3Al coating at different
temperatures were also tested. Meanwhile, the friction and wear loss of RuT350 substrate and NiCr-Mo-Cr3C2
coating at room temperature and 400℃ were also measured under the same conditions. The results show that the
hardness of (Cr,Fe)7C3/Fe3Al coating decreases slowly with the increase of temperature, and under the same load,the friction coefficient of (Cr,Fe)7C3/Fe3Al coating is significantly lower than that of RuT350 cast iron. The total
wear loss between (Cr,Fe)7C3/Fe3Al coating and friction pair is only 45.8% of that for Rut350 matrix at 400℃ ,
and the wear resistance of the coating at room temperature to 400℃ is better than that of Fe3Al coating and
NiCr-Mo-Cr3C2 coating. The reason why (Cr,Fe)7C3/Fe3Al processes high wear resistance at medium and high
temperature may be the bonding phase of intermetallic compound Fe3Al with R phenomenon that is different from
that of ordinary alloy in a specific temperature range. Thus, resulting in high hardness of (Cr,Fe)7C3/Fe3Al and a
large number of dispersed fine (Cr,Fe)7C3 grains, which is hardly to cause the ceramic particles to fall off from the
metal phase and form a third particle on the wear surface.
文章编号： 中图分类号：TG174.4 文献标志码：
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引用文本：
袁建鹏,于月光,刘安强.30 wt.% 碳化物含量 (Cr,Fe)7C3/Fe3Al 金属陶瓷涂层磨损行为[J].热喷涂技术,2021,13(1):13-21.
Yuan Jianpeng,Yu Yueguang,Liu Anqiang.Abrasion Wear Behavior of (Cr,Fe)7C3/Fe3Al Cermet with 30 wt.% Carbide Content[J].Thermal Spray Technology,2021,13(1):13-21.
袁建鹏,于月光,刘安强.30 wt.% 碳化物含量 (Cr,Fe)7C3/Fe3Al 金属陶瓷涂层磨损行为[J].热喷涂技术,2021,13(1):13-21.
Yuan Jianpeng,Yu Yueguang,Liu Anqiang.Abrasion Wear Behavior of (Cr,Fe)7C3/Fe3Al Cermet with 30 wt.% Carbide Content[J].Thermal Spray Technology,2021,13(1):13-21.