Study on Friction Property of the Ni/ZrO₂ Composite Infiltrated Layer on Cast Steel Surface under Dry Fraction

Abstract:

The surface composite layer Ni/ZrO₂ on the ZG45 cast steel surface was fabricated through vacuum infiltration casting method. This paper researched on the Ni/ZrO₂ composite infiltrated layer morphology, hardness and the friction property under fry friction. The results show that the main phase structure of the layer is ZrO₂, Cr₂B, NiB and FeNi. The macrohardness of the layer is HRC60~64. The micohardness presents gradient change. The maximum hardness appears at subsuface. The 10% ZrO₂ composite infiltrated layer wear resistance increases 10 times and 15% ZrO₂ composite infiltrated layer increases 22.6 times than ZG45 under the 100N load. The 10% ZrO₂ composite infiltrated layer wear resistance increases 8.5 times and 15% ZrO₂ composite infiltrated layer increases 21.9 times under 250N load. The wear resistance has greatly improved.

• Periodical: Advanced Materials Research (Volume 1055)
• Pages: 73-77
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1055.73
• Online since: November 2014
• Authors: Xian Ming Sun, Gui Rong Yang, Lei Wei, Yu Lan Liu
• Keywords: Cast Steel, Dry Sliding Friction, Friction Property, Ni-Based Composite Infiltrated Layer

References

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