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]

Dual functionality of Zn-implanted PEO coatings on Ti6Al4V: Antibacterial activity and wear resistance

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

[Victor Velho de Castro, Daniel Augusto Krieger Coutinho, Victor Rosa dos Santos, Heitor Haywig, Eduardo Pitthan, Natasha Maurmann, Vitória Milech, Matheus Bullmann, Leonardo Moreira dos Santos, Lorenza Corti Villa, Alice Elvira Teixeira dos Santos, Rodrigo Bassani Lopes, Fernanda Cortez Lopes, Patricia Pranke, Cesar Aguzzoli, Antonio Marcos Helgueira de Andrade, Célia de Fraga Malfatti]

Silica-containing coating for corrosion protection

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

[Yue Yin a 1, Shuang Li a 1, Wenbo Wang a, Dongyuan Zhao a c, Kun Lan a, Michael Rohwerder b]