润滑科技信息平台

Effect of Ti3SiC2 addition on microstructure and tribological property of laser cladded NiCrAl–WC–Ti3SiC2 composite coatings at 500 °C

出版日期: 2023-05-01

DOI: 10.1016/j.diamond.2023.109981

作者: Wei Tang; Chuang He; Fan Wang; Dejun Kong;

NiCrAl–WC–Ti3SiC2 composite coatings with the different Ti3SiC2 mass fractions were prepared on H13 steel by laser cladding (LC). The influence of Ti3SiC2 mass fraction on the tribological property of obtained composite coatings at 500 °C was investigated using a high temperature wear machine, and the roles of WC and Ti3SiC2 in the friction process were discussed in detail. The results show that the coefficients of friction (COFs) and wear rates of NiCrAl–WC–Ti3SiC2 composite coatings are increased with the Ti3SiC2 mass fraction, exhibiting the appropriate Ti3SiC2 mass fraction plays a certain role in the friction reduction and wear resistance, which are contributed to the coarsening of grains and the decrease of hardness. In addition, it is also found that the Ti3SiC2 is reacted with the WC to generate SiC, TiC, TiWC2 and other hard phases, and the amount of WC particles of coatings is decreased by the addition of Ti3SiC2, which is the main factor for the decline of tribological performance.

Structural evolution, phase transition and high-temperature tribological properties of Cr3C2 reinforced WC-10Co4Cr coatings by laser cladding

Pub Date: 2023-05-01 DOI: 10.1016/j.diamond.2023.109981

[Yuan Ge, Hui Xi, Dejun Kong]

An Efficient Sol–Gel Strategy to Fabricate Superhydrophobic and Oleophobic Polyester Fabrics With Enhanced Mechanical Stability and Chemical Durability Using Perfluorodecyltrimethoxysilane (PFDMS)

Pub Date: 2023-05-01 DOI: 10.1016/j.diamond.2023.109981

[Tianlu Xu, Wei Tang, Mingjun Shao, Yulan Jian, Xionghang Yang, Linkun Xie]

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Pub Date: 2023-05-01 DOI: 10.1016/j.diamond.2023.109981

[Long Zhang, Kaiwei Zhang, Dejun Kong]