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首页> 外文期刊>Journal of Materials Engineering and Performance >Influence of Oxidation Temperature and Exposure Time on Surface and Tribological Properties of Ti-6Al-4V Alloy After Surface Rolling
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Influence of Oxidation Temperature and Exposure Time on Surface and Tribological Properties of Ti-6Al-4V Alloy After Surface Rolling

机译：氧化温度和暴露时间对表面轧制后Ti-6Al-4V合金表面和摩擦学性质的影响

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摘要

Surface modification layers (oxide layer and oxygen diffusion region) were manufactured on Ti-6Al-4V alloy substrate by combining multi-pass surface rolling with thermal oxidation. Firstly, multi-pass surface rolling at the load of 750 N was taken to improve the microstructure and properties of material surface layer. Then thermal oxidation was conducted at the temperature of 700, 750, 800, and 850 degrees C for 1, 1.5, and 2 h duration, respectively. Some microscopic analysis methods (SEM, EDS and XRD) were used to characterize the surface-modified layer of the samples. The microstructure, surface morphology and microhardness dispersion region of surface-modified layers provided by the different conditions treated samples were compared. Therefore, the effects of the exposure oxidation temperature and time on the microstructure and properties of surface-modified layers were studied on the basis of multi-pass surface rolling. The friction and wear properties of the different conditions treated samples were analyzed in dry friction conditions. It could be found that the properties and wear resistance of surface-modified layer is gradually increased with the increase of oxidation temperature and time. The predominant wear mechanism is the adhesive and abrasive wear under dry friction conditions, as well as the delamination of oxide film and tribolayer.
机译：通过将多通表面轧制与热氧化相结合，在Ti-6Al-4V合金基板上制造表面改性层（氧化物层和氧气扩散区域）。首先，采取了750n载荷的多通表面滚动以改善材料表面层的微观结构和性质。然后分别在700,750,800和850℃的温度下进行热氧化，分别为1,1.5和2 H持续时间。一些微观分析方法（SEM，EDS和XRD）用于表征样品的表面改性层。比较了由不同条件处理的样品提供的表面改性层的微观结构，表面形态和显微硬度分散区。因此，在多通表面轧制的基础上研究了暴露氧化温度和时间对表面改性层的微观结构和性质的影响。在干摩擦条件下分析了不同条件处理样品的摩擦和磨损性能。可以发现，随着氧化温度和时间的增加，表面改性层的性能和耐磨性逐渐增加。优势磨损机构是干燥摩擦条件下的粘合剂和磨料，以及氧化膜和摩擦层的分层。

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  • 作者

    Li G.; Qu S. G.; Pan Y. X.; Li X. Q.; Sun F. J.;

  • 作者单位

    South China Univ Technol Natl Engn Res Ctr Near Net Shape Forming Met Mat Dept Mech &

    Automot Engn Bldg 38 381 Wushan Rd Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Natl Engn Res Ctr Near Net Shape Forming Met Mat Dept Mech &

    Automot Engn Bldg 38 381 Wushan Rd Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Natl Engn Res Ctr Near Net Shape Forming Met Mat Dept Mech &

    Automot Engn Bldg 38 381 Wushan Rd Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Natl Engn Res Ctr Near Net Shape Forming Met Mat Dept Mech &

    Automot Engn Bldg 38 381 Wushan Rd Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Natl Engn Res Ctr Near Net Shape Forming Met Mat Dept Mech &

    Automot Engn Bldg 38 381 Wushan Rd Guangzhou 510640 Guangdong Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 金属学与金属工艺;工程材料学;
  • 关键词

    friction behavior; surface properties; surface rolling; thermal oxidation;

    机译：摩擦行为;表面特性;表面滚动;热氧化;

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