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首页> 外文期刊>Journal of Materials Research >Effect of oxidation on thermal fatigue behavior of cast tungsten carbide particle/steel substrate surface composite
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Effect of oxidation on thermal fatigue behavior of cast tungsten carbide particle/steel substrate surface composite

机译：氧化对铸造碳化钨颗粒/钢基材表面复合材料热疲劳行为的影响

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摘要

Cast tungsten carbide is widely used to reinforce iron or steel substrate surface composites to meet the demands of harsh wear environments due to its extremely high hardness and excellent wettability with molten steel. Cast tungsten carbide particle/steel matrix surface composites have demonstrated great potential development in applications under the abrasive working condition. The thermal shock test was used to investigate the fatigue behavior of the composites fabricated by vacuum evaporative pattern casting technique at different temperatures. At elevated temperatures, the fatigue behavior of the composites was influenced by the oxidation of tungsten carbide, producing WO3. Thermodynamic calculations showed that the W2C in the tungsten carbide particle was oxidized at an initial temperature of approximately 570 degrees C. The relationship between oxidation and thermal fatigue crack growth was investigated, and the results suggested that oxidation would become more significant with increasing thermal shock temperature. These findings provide a valuable guide for understanding and designing particle/steel substrate surface composites.
机译：铸造碳化钨因其极高的硬度和出色的钢水润湿性而被广泛用于增强铁或钢基材表面复合材料，以满足苛刻的磨损环境的要求。铸造碳化钨颗粒/钢基表面复合材料在磨料加工条件下的应用中显示出巨大的发展潜力。采用热冲击试验研究了真空蒸发模铸技术在不同温度下制备的复合材料的疲劳行为。在升高的温度下，复合材料的疲劳行为受到碳化钨的氧化影响，从而产生WO3。热力学计算表明，碳化钨颗粒中的W2C在约570摄氏度的初始温度下被氧化。研究了氧化与热疲劳裂纹扩展之间的关系，结果表明，随着热冲击温度的升高，氧化作用将变得更加重要。 。这些发现为理解和设计颗粒/钢基材表面复合材料提供了有价值的指导。

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  • 来源
    《Journal of Materials Research》 |2019年第10期|1754-1761|共8页
  • 作者

    Shan Quan; Zhou Zaifeng; Li Zulai; Jiang Yehua; Gao Fan; Zhang Lei;

  • 作者单位

    Kunming Univ Sci & Technol, Sch Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China|Northeastern Univ, Dept Mech & Ind Engn, Boston, MA 02115 USA;

    Kunming Univ Sci & Technol, Sch Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China|Northeastern Univ, Dept Mech & Ind Engn, Boston, MA 02115 USA;

    Kunming Univ Sci & Technol, Sch Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China|Northeastern Univ, Dept Mech & Ind Engn, Boston, MA 02115 USA;

    Kunming Univ Sci & Technol, Sch Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China|Northeastern Univ, Dept Mech & Ind Engn, Boston, MA 02115 USA;

    Kunming Univ Sci & Technol, Sch Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China|Northeastern Univ, Dept Mech & Ind Engn, Boston, MA 02115 USA;

    Kunming Univ Sci & Technol, Sch Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China|Northeastern Univ, Dept Mech & Ind Engn, Boston, MA 02115 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    surface composite; cast tungsten carbide particle; thermal fatigue; oxidation;

    机译：表面复合材料;铸造碳化钨颗粒;热疲劳;氧化;

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