Effect of Hardness and Position on Wear Behavior of Steel Pairs

Abstract:

In this paper, the effect of hardness and position on the 40CrNiMoA steel and 18Cr2Ni4WA steel friction pairs’ friction coefficient and wear volume were studied without lubrication, at room temperature. The results show that: Under test conditions, the fluctuation in the friction coefficient is bigger, when the up specimen is the harder 18Cr2Ni4WA steel. And when the up specimen is the softer 40CrNiMoA steel, the fluctuation in the friction coefficient is relatively small. When the up specimen is the 40CrNiMoA steel, the hardness of 40CrNiMoA steel is a relatively small impact on the average value of the coefficient of friction.When the up specimen is the softer 40CrNiMoA steel, the coefficient of friction is relatively larger than that when the up specimen is the harder 18Cr2Ni4WA steel. The wear volumes is relate to the position of friction pair. When the up specimen is the harder 18Cr2Ni4WA steel, both sides of the friction pairs has the same wear volumes when the hardness of 40CrNiMoA steel is about 43HRC. When the up specimen is softer 40CrNiMoA steel, and its hardness is about 54HRC, the wear volumes curves of two materials intersect.

• Periodical: Applied Mechanics and Materials (Volumes 263-266)
• Pages: 95-98
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.263-266.95
• Online since: December 2012
• Authors: Zhu Jun Li, Zheng Wu Jiang, Huan Wei Zhou
• Keywords: Friction Coefficient (FC), Hardness, Position, Wear Volume

References

[1] Zhujun Li, Fankang Zhu: Lubrication engineering. Vol 3(2011),p.65. (In Chinese)

[2] Shaojun He, Shaoweim He and Bin Wu, Journal of Dalian university for national minorities. Vol 1(1999) ,p.36. (In Chinese)

[3] Gear Manual Editorial Board,Worm transmission manual, BeiJing: China Machine Pres, 2002.

[4] Teng Ma, Guilan Zhu, Physics experiment. Vol 5(1999) ,p.3. (In Chinese)

[5] Shoumou Xi, Jianguo Zhang, Xiaogang Sun, et al. Journal of Materials Engineering, Vol 9(2003) ,p.44. (In Chinese)