Ti-C-Fe体系中Fe含量对铸铁表面涂层性能的影响

常庆明; 肖利香; 双子昱; 潘成刚

doi:10.15980/j.tzzz.2017.05.018

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Ti-C-Fe体系中Fe含量对铸铁表面涂层性能的影响
Effect of Fe Content on the Properties of Surface Coatings in Ti-C-Fe System
2017年37卷第5期页码：522-526
纸质出版日期： 2017 ，
DOI： 10.15980/j.tzzz.2017.05.018

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[1]常庆明,肖利香,双子昱,潘成刚.Ti-C-Fe体系中Fe含量对铸铁表面涂层性能的影响[J].特种铸造及有色合金,2017,37(05):522-526.

Chang Qingming, Xiao Lixiang, Shuang Ziyu, et al. Effect of Fe Content on the Properties of Surface Coatings in Ti-C-Fe System[J]. Special Casting & Nonferrous Alloys, 2017,37(5):522-526.
[1]常庆明,肖利香,双子昱,潘成刚.Ti-C-Fe体系中Fe含量对铸铁表面涂层性能的影响[J].特种铸造及有色合金,2017,37(05):522-526. DOI： 10.15980/j.tzzz.2017.05.018.

Chang Qingming, Xiao Lixiang, Shuang Ziyu, et al. Effect of Fe Content on the Properties of Surface Coatings in Ti-C-Fe System[J]. Special Casting & Nonferrous Alloys, 2017,37(5):522-526. DOI： 10.15980/j.tzzz.2017.05.018.

摘要

以灰铸铁为基体、Ti-C-Fe粉末体系为表面预制涂层材料

采用真空消失模铸造与自蔓延相结合的方法制备TiCp表面复合材料

通过改变预制粉体中Fe含量研究表面涂层的组织和性能。结果表明

铁基表面涂层主要由TiC与Fe相组成

而且涂层表面自生的TiCp呈近球形

分布均匀

与基体结合良好。TiCp的尺寸随涂层中Fe含量的增加而减小

但涂层硬度与耐磨性却先降低后提高

其中涂层最高硬度（HRC）可达到59.8。

Abstract

TiC particle reinforced surface coating composites were prepared with grey cast iron as matrix and Ti-C-Fe powder system as surface pre-formed coating by vacuum EPC combined with SHS method.Effects of Fe content in Ti-C-Fe system on microstructure and properties of surface coating were investigated.The results show that the surface of Fe based coating is mainly composed of TiC phase and Fe phase.The in-situ TiC coating on the surface of substrate with nearly spherical shape has an uniform distribution and a desirable combination with substrate.The size of TiC particles is decreased with the increase of Fe content in the coating

while the hardness and wear resistance of the coating is decreased firstly and then increased

where the highest hardness can reach 59.8HRC.

关键词

真空消失模铸造自蔓延高温合成TiCp表面复合材料

Keywords

Vacuum Evaporative Pattern CastingSelf Propagating High Temperature SynthesisTiC ParticlesSurface Composites

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离心铸造铝硅合金初晶自生复合材料的研究