Abstract
TiC reinforced AZ91 magnesium matrix composites have been fabricated by a melt in situ reaction spray deposition. The microstructures of spray-deposited alloys were studied by using scanning electron microscopy (SEM) and X-ray diffraction (XRD). The dry sliding wear behavior of the alloys was investigated by using a pin-on-disc machine under five loads, namely 10, 20, 30, 40, and 50 N. The composites had much better wear-resistance than the matrix alloy. The wear behavior of the composites was dependent on the TiC content in the microstructure and the applied load. The improvement in the wear resistance of the composites became more prominent at larger normal load. At a lower load (10 N), with increasing TiC content, the wear rate of the composite was decreased, and the dominant wear mechanism was an oxidative mechanism. At a higher loads (50 N), a spray-deposited AZ91/TiC composites exhibited superior wear resistance to the AZ91 magnesium alloy, and the dominant wear mechanism was delamination.
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This work is supported by The Natural Science Foundation of Hangkong (No. 2007ZF56015) and The Natural Science Foundation of Jiangxi (No. 2007GZC1500).
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The Editors-in-Chief and the authors have decided to retract the following article “Wear Mechanism for In Situ TiC Particle Reinforced AZ91 Magnesium Matrix Composites” by Junping Yao, Wen Li, Lei Zhang, Fajun Wang, Mingshan Xue, Hongliu Jiang, Jinshan Lu, which appeared in Tribology Letters, Volume 38, Issue 3, pages 253 - 257, 10.1007/s11249-010-9600-x. Upon investigation, it has been found that the authors have duplicated figures from the following articles:
1. “Effect of in-situ TiC particulate on the wear resistance of spray-deposited 7075 Al matrix composite” by Feng Wang, Huimin Liu, Bin Yang. Materials Characterization, Volume 54, Issues 4–5, May 2005, Pages 446–450
2. “Tensile and wear behaviour of in situ Al–7Si/TiB2 particulate composites” by S. Kumar, M. Chakraborty, V. Subramanya Sarma, B.S. Murty. Wear, Volume 265, Issues 1–2, 25 June 2008, Pages 134–142
Specifically, the authors duplicated Figure 2 from Figure 2 in “Effect of in-situ TiC particulate on the wear resistance of spray-deposited 7075 Al matrix composite” and Figures 4 and 5 from Figures 7 and 8 in “Tensile and wear behaviour of in situ Al–7Si/TiB2 particulate composites”, which had the effect of misrepresenting their own experimental results.
An erratum to this article can be found online at http://dx.doi.org/10.1007/s11249-015-0511-8.
An erratum to this article is available at http://dx.doi.org/10.1007/s11249-015-0511-8.
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Yao, J., Li, W., Zhang, L. et al. RETRACTED ARTICLE: Wear Mechanism for In Situ TiC Particle Reinforced AZ91 Magnesium Matrix Composites. Tribol Lett 38, 253–257 (2010). https://doi.org/10.1007/s11249-010-9600-x
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DOI: https://doi.org/10.1007/s11249-010-9600-x