Study on Vacuum Tribological Behavior of 9Cr18Mo Bearing Steel by PIII Combined with MS Surface Hybrid Modification Processes

Abstract:

Hybrid modification processes are used to improve the working surface of 9Cr18Mo bearing steel by plasma immersion ion implantation (PIII) combined with magnetron sputtering (MS). The untreated and treated samples were evaluated by the microhardness and vacuum fiction coefficient tests. Wear morphology of surfaces were also evaluated. It has been found that the microhardness of treated samples increased substantially, and the maximum microhardness was increased 31.9%, the adhesion force at the interface of the film and substrate was improved from 79mN to 107mN, the vacuum friction coefficient was decreased from 0.43 to 0.15, the wear scar diameter was reduced 28.6%. By the comparison of the comprehensive properties of different surface modification processes, hybrid process is better than single process.

• Periodical: Materials Science Forum (Volume 914)
• Pages: 124-131
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.914.124
• Online since: February 2018
• Authors: Jiang Zhao*, De Li Tang, Xing Guo Feng, Hui Zhou, Li Xia Huo, Serguei Mikhailov
• Keywords: 9Cr18Mo, Friction, Plasma Immersion Ion Implantation (PIII), Vacuum Tribology, Wear

References

[1] Fan Y W. A Long life, high reliability and high accuracy inertial actuator for satellite attitude control system[J]. Chinese Journal of Space Science, 2002, 22(10): 137-143.

[2] Li M Y, Knystautas EJ, Krishnadev M. Surf. Coat. Technol., 2001, (138): 220-228.

[3] Tang B Y. Plasma source ion implantation (I) -principle and Technology [J]. Physics, 1994, (23): 41-45.

[4] Conrad J R, Radtke J L, Dodd R A, et al. Plasma source ion implantation technique for surface modification of materials [J]. Appl. Phys., 1987, (62): 4591-4594.

DOI: 10.1063/1.339055

[5] M. Ueda, L.A. Berni, R.M. Castro, et al. Surface improvements of industrial components treated by plasma immersion ion implantation (PIII): results and prospects [J]. Surf. Coat. Technol., 2002, (156): 71-76.

DOI: 10.1016/s0257-8972(02)00115-9

[6] Blawert C, Mordike B L. Industrial application of plasma immersion ion implantation [J]. Surf. Coat. Technol., 1997, (93): 274-279.

DOI: 10.1016/s0257-8972(97)00060-1

[7] Wang L P, Wang Y H, Yu Y H. Batch treatment of industrial components using plasma immersion ion implantation and deposition[J]. Surf. Coat. Technol., 2007, (201): 6585-6588.

DOI: 10.1016/j.surfcoat.2006.09.094

[8] T. Bell, H. Dong, Y. Sun. Realising the potential of duplex surface engineering [J]. Tribology International. 1998, 31(3): 127-137.

DOI: 10.1016/s0301-679x(98)00015-2

[9] Tian X B, P. K. Chu, Ricky Fu, et al. Hybrid processes based on plasma immersion ion implantation: a brief review [J]. Surf. Coat. Technol., 2004, (186): 190-195.

DOI: 10.1016/j.surfcoat.2004.04.049

[10] Wang J H, Liang H, Ming J Z, et al. Dual species implanter and application on gas turbine engine main shaft bearings [J]. Nuclear Techniques, 2008, 31(2): 95-99.

[11] Liu F B, Fu G H, Cui Y, et al. Tribological properties and surface structures of ion implanted 9Cr18Mo stainless steels [J]. Nuclear Instruments and Methods in Physics Research B, 2013, (307): 412-418.

DOI: 10.1016/j.nimb.2012.12.115