Wear Resistance of Nano TiN Strengthen High Chromium Cast Iron

Abstract:

The effects and the mechanisms of namo TiN on the high chromium cast iron are studied, the material has been prepared through infiltration casting and addition of high carbon ferrochrome powder and nano TiN powder. The alloy is formed on the surfaced of guide plate, and the wear resistance of alloy have been studied by means of SEM, XRD micro-analysis and wear-resistant performance. The grain size and the type of carbide in the organization are affected by nano TiN, and the wear resistance of carbon chromium alloy layer is affected by the type of carbide; when the addition of nano TiN is 1% (wt), the grain size is apparently refined, overeutectic primary M7C3 in the hypereutectic is precipitated uniformly in considerable amounts, therefore the wear resistance of alloy can be improved effectively.

• Periodical: Applied Mechanics and Materials (Volumes 217-219)
• Pages: 2410-2413
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.217-219.2410
• Online since: November 2012
• Authors: Xing Hai Shao, Jing Pei Xie, Wen Yan Wang, Yan Li, Pin Gan Zhou, Hui Wu Yu
• Keywords: Cast Infiltrate Layer, High Chromium Cast Iron, Nano TiN, Wear-Resisting Performance

References

[1] Jiang D M, Kang S B, Kim H W: Tensile and fatigue fracture behavior of a spot welded Al-Mg alloy J. Joumal of Materials Science Letters Vol. 16(13) (1997-1998), pp.1179-1181

DOI: 10.1007/bf02765403

[2] Mechel: Surface Alloying the Operating Layer of Moulds J. Mezhdunarwdays Kniga Vol. 3(1998), pp.62-67

[3] YANG Guirong, HAO Yuan, SONG Wenming, MA Ying: Surface composite on the copper substrate rabricated by infiltration casting J. Acta Materiae Compositae Sinica Vol. 1(2005)

[4] GuirongYANG,Yuan HAO,Wenming SONG,Jinjun Lu,Ying MA: Surface compositefabricated by bacuum infiltration casting technique J.Journal of University of Science and Technology Vol. 12(5) (2005)

[5] Youping Ma, Feng Zhao, Jingyu Pan, Yugao Liu: Study on carbides growth mechanism and influencing factors of hypereutectic high chromium white cast irons J.Shanghai Metallurgical Research Institute (2000)