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Enhancing anti-wear and anti-corrosion performance of cold spraying aluminum coating by high current pulsed electron beam irradiation.
- Source :
-
Vacuum . Dec2020, Vol. 182, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
-
Abstract
- High current pulsed electron beam (HCPEB) was employed to irradiate cold spraying aluminum coating. The microstructures, tribological and corrosion behaviors of the untreated and irradiated samples were investigated by the X-ray diffraction (XRD), scanning electron microscope (SEM), ball-disc wear and electrochemical tests. HCPEB irradiation significantly triggered the surface remelting and densification of the coating texture. Compared with the original coating, the irradiated coating showed a higher hardness of up to 88 HV, a higher compressive stress value of 31 MPa and a lower wear rate of 1.06 × 10−4 mm3 N−1 m−1, but also exhibited an outstanding anti-corrosion performance, reflected by a higher polarization resistance and a smaller corrosion current density of 4.45 μA/cm2. These current findings confirmed that HCPEB irradiation shows a huge potential for enhancing the anti-corrosion and anti-wear properties of cold spray coatings. • Microstructure and properties of HCPEB irradiated Al coating were investigated. • HCPEB irradiation greatly induced the formation of dense surface remelting layer. • The irradiated coating showed higher hardness and lower compressive stress. • The irradiated coating showed better anti-wear and anti-corrosion performance. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0042207X
- Volume :
- 182
- Database :
- Academic Search Index
- Journal :
- Vacuum
- Publication Type :
- Academic Journal
- Accession number :
- 146654391
- Full Text :
- https://doi.org/10.1016/j.vacuum.2020.109772