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<p>The dry sliding wear behavior of the aluminum nanocomposite with titania nanoparticle reinforcement has been investigated. It had been manufactured by atmosphere plasma spraying (APS) and subsequently up to seven cycles of accumulative roll bonding (ARB). The values of microhardness displayed during those seven cycles of ARB increased from 41.4 to 70.4 Vickers, respectively. Then, the amount of weight loss from the first four cycles of ARB increased from 0.0150 to 0.0383&#xa0;g, indicating the decrease in wear resistance. However, after the fourth to seventh cycles of ARB, this amount decreased from 0.0383 to 0.0247&#xa0;g, indicating an increase in wear resistance. The measured friction coefficient values displayed some fluctuations in the sliding distance of wear tests after the first to third ARB cycles. In higher stages of nanocomposite manufacturing, the trend of friction coefficients to the end of the sliding distance showed nearly consistent and uniform values. Finally, the depth and width of wear were measured by SEM and a profilometer. The results indicated that the wear width increased from approximately 1 to 6&#xa0;mm, and the change in the geometrical form of wear depth was visible for all the ARB cycles.</p>

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Dry Sliding Wear Characteristics in Trend at Every Stage of Al-TiO2 Nanocomposite Manufacturing Processed by Atmospheric Plasma Spraying and Accumulative Roll Bonding

  • 期刊论文

  • 发表日期：

    2025年2月3日

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  • Masoud Shoushtarian Mofrad,
  • Ehsan Borhani,
  • Mohammad Yousefieh

摘要

The dry sliding wear behavior of the aluminum nanocomposite with titania nanoparticle reinforcement has been investigated. It had been manufactured by atmosphere plasma spraying (APS) and subsequently up to seven cycles of accumulative roll bonding (ARB). The values of microhardness displayed during those seven cycles of ARB increased from 41.4 to 70.4 Vickers, respectively. Then, the amount of weight loss from the first four cycles of ARB increased from 0.0150 to 0.0383 g, indicating the decrease in wear resistance. However, after the fourth to seventh cycles of ARB, this amount decreased from 0.0383 to 0.0247 g, indicating an increase in wear resistance. The measured friction coefficient values displayed some fluctuations in the sliding distance of wear tests after the first to third ARB cycles. In higher stages of nanocomposite manufacturing, the trend of friction coefficients to the end of the sliding distance showed nearly consistent and uniform values. Finally, the depth and width of wear were measured by SEM and a profilometer. The results indicated that the wear width increased from approximately 1 to 6 mm, and the change in the geometrical form of wear depth was visible for all the ARB cycles.