An Investigation of the Thermal Sprayed Molybdenum Coatings Behaviour to Micro-Abrasion Wear

Abstract:

Article Preview

The wear behaviour of thick molybdenum coatings deposited by electric arc thermal spray on steel support was investigated by micro-abrasion, a relatively recent introduced method for small scale wear testing. The wear mechanisms and wear rates without coatings penetration were investigated with respect of time corresponding to primary and secondary wear stages. The micro-abrasion of Mo coatings using SiC abrasive slurry have been discussed and wear scar characteristics were evaluated based on the experimentally results. The worn surfaces of the tested specimen were examined by SEM and the specific wear rate was calculated from experimental data. For the testing durations used it was identified the change from grooving to rolling wear corresponding to the transition of wear mode from two-body to three body-abrasion.

Info:

Periodical:

Edited by:

Prof.univ. Adrian Olaru

Pages:

15-20

DOI:

10.4028/www.scientific.net/AMM.841.15

Citation:

G. Matache et al., "An Investigation of the Thermal Sprayed Molybdenum Coatings Behaviour to Micro-Abrasion Wear", Applied Mechanics and Materials, Vol. 841, pp. 15-20, 2016

Online since:

June 2016

Export:

Price:

$38.00

* - Corresponding Author

[1] Y. Fu, J. Wei, A.W. Batchelor, Some considerations on the mitigation of fretting damage by the application of surface-modification technologies, J. Mater. Process. Techn. 99 (2000) 231 – 245.

[2] M. Mrdak, A. Vencl, M. Cosic, Microstructure and Mechanical Properties of the Mo-NiCrBSi Coating Deposited by Atmospheric Plasma Spraying, FME Transactions (2009) 37, 27-32.

[3] J. Ahn, B. Hwang, S. Lee, Improvement of Wear Resistance of Plasma-Sprayed Molybdenum Blend Coatings, J. Therm. Spray Techn. 14(2) (2005) 251-257.

[4] K. Holmberg, H. Ronkainen, A. Laukkanen, K. Wallin, Friction and wear of coated surfaces - scales, modelling and simulation of tribomechanisms, Surf. Coat. Tech. 202 (2007) 1034–1049.

DOI: 10.1016/j.surfcoat.2007.07.105

[5] P. Fauchais, M. Vardelle, S. Goutier, A. Vardelle, Specific Measurements of In-Flight Droplet and Particle Behavior and Coating Microstructure in Suspension and Solution Plasma Spraying, J. Therm. Spray Techn. 24(8) (2015) 1498-1505.

DOI: 10.1007/s11666-015-0319-y

[6] R.C. Cozza, A study on friction coefficient and wear coefficient of coated systems submitted to micro-scale abrasion tests, Surf. Coat. Tech. 215 (2013) 224–233.

DOI: 10.1016/j.surfcoat.2012.06.088

[7] A. Ramalho, Micro-scale abrasive wear of coated surfaces-prediction models, Surf. Coat. Tech. 197 (2005) 358– 366.

[8] M.S. Priyan, P. Hariharan, Abrasive Wear Modes in Ball‐Cratering Test Conducted on Fe73Si15Ni10Cr2 Alloy Deposited Specimen, Tribology in Industry 36(1) (2014) 97‐106.

[9] V.C. Teles, W.M. da Silva, J.D.B. de Mello, Abrasive wear of multi-layered/gradient CrAlSiN coatings, (2015) doi: 10. 6567/IFToMM. 14TH. WC. OS18. 004.

[10] G. Matache, C. Puscasu, A. Paraschiv, O. Trusca, Investigation of Some Intrinsic Properties of Thermal Sprayed Molybdenum Coatings for Railway Axle Applications, Applied Mechanics and Materials 811 (2015).

DOI: 10.4028/www.scientific.net/amm.811.19

In order to see related information, you need to Login.