润滑科技信息平台

Characterization of plasma electrolytic oxidation coatings containing carbon nanotubes formed on selective laser melted AlSi10Mg alloy

DOI: 10.1016/j.surfcoat.2022.129145

作者: Wang, Qun; Fang, Bingbing; Liu, Chenyu; Tu, SiSi; Cha, Limei; Ramachandran, Chidambaram Seshadri;

In this study, plasma electrolytic oxidation (PEO) coatings containing carbon nanotubes (CNTs) were prepared on selective laser melted (SLM) AlSi10Mg alloy by adding CNTs to the electrolyte during PEO treatment. The mechanism of doping CNTs into PEO coatings and the morphology of the resultant PEO coatings were mainly investigated. The corrosion and wear/tribological resistance of PEO coatings with CNT addition were examined by electrochemical experiments and dry sliding wear. The results indicate that: the addition of CNTs resulted in a dense outer layer composed of gamma-Al2O3, and the inner layer was a porous layer composed of amorphous Al2O3 and amorphous SiO2. In addition, the CNTs significantly increased the hardness and wear resistance of the PEO coatings formed on the SLM AlSi10Mg alloy.

Effect of WC Grain Size and Abrasive Type on the Wear Performance of HVOF-Sprayed WC-20Cr(3)C(2)-7Ni Coatings

Pub Date: DOI: 10.1016/j.surfcoat.2022.129145

[Wang, Qun, Zhang, Yingpeng, Ding, Xiang, Wang, Shaoyi, Ramachandran, Chidambaram Seshadri]

Effects of isothermal heat treatment on tribological and electrochemical performances of alumina-based coatings with monoclinic zirconia

Pub Date: DOI: 10.1016/j.surfcoat.2022.129145

[Issam Bouklouche, Rassim Younes, Sarra Boudjit, Mohand Amokrane Bradai, Amine Rezzoug, Larissa Rossi Gehlen, Giuseppe Pintaude]

Investigations on tribological behavior under lubricated condition of post heat treated additively manufactured SS316L parts

Pub Date: DOI: 10.1016/j.surfcoat.2022.129145

[Veluchamy M., Kumanan Somasundaram, Satheeshkumar V.]