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首页> 外文期刊>Optics & Laser Technology >Microstructure and fretting wear of laser cladding self-lubricating anti-wear composite coatings on TA2 alloy after aging treatment
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Microstructure and fretting wear of laser cladding self-lubricating anti-wear composite coatings on TA2 alloy after aging treatment

机译：老化处理后TA2合金激光覆层自润滑抗磨损复合涂层的微观结构和微动磨损

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摘要

Fretting wear, as an unique form of material degradation, was researched relatively scarce compared with sliding wear in recent study, especially on influence of aging treatment on the fretting wear property of laser cladded composite coatings. In order to investigate the effect of aging treatment on microstructure and fretting wear of laser cladding self-lubricating anti-wear composite coatings on TA2 alloy, the composite coatings were prepared on TA2 alloy by laser cladding with precursor mixed WS2-TiC-Ti (mole ratio of 1:3:6) powders, and the fabricated coatings were heated at 300 degrees C, 500 degrees C and 700 degrees C in vacuum for 1 h, respectively. The microstructure, micro-hardness, fretting wear properties of as-laser cladded and heat-treated composite coatings were studied systematically. The results show that the composite coatings mainly contain three types of phases: the carbides (Ti,W)C1-x and TiC, alpha-Ti, sulfides TiS and Ti2SC. The micro-hardness of composite coatings after aging treatment is higher than the coating without aging treatment. The main wear mechanisms of composite coatings after aging treatment at 700 degrees C are abrasive wear and adhesive wear, and the composite coating exhibits good fretting wear property.
机译：与最近的研究中的滑动磨损相比，令人烦恼的磨损是一种独特的材料降解形式，特别是对滑动磨损相比，特别是关于老化处理对激光覆盖复合涂层的磨损性能的影响。为了研究老化处理对TA2合金激光包覆自润滑抗磨损复合涂层的微观结构和微观磨损的影响，通过用前体混合WS2-TIC-Ti（摩尔）在TA2合金上制备复合涂层（摩尔粉末的比例为1：3：6），并将制造的涂层在300℃，500℃和700℃的真空中加热1小时。系统地研究了AS-激光熔覆和热处理的复合涂层的微观结构，微硬度，微动磨损性能。结果表明，复合涂层主要含有三种类型的阶段：碳化物（Ti，W）C1-X和TiC，α-Ti，硫化物TIS和TI2SC。老化处理后的复合涂层的微硬度高于涂层而无需老化处理。复合涂层在700℃下处理后的复合涂层的主磨损机制是磨料磨损和粘合剂磨损，复合涂层具有良好的微动磨损性能。

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  • 来源
    《Optics & Laser Technology》 |2019年第2019期|共13页
  • 作者

    Ke Jin; Liu Xiu-Bo; Liang Jue; Liang Liang; Luo Ying-She;

  • 作者单位

    Cent South Univ Forestry &

    Technol Hunan Prov Key Lab Mat Surface Interface Sci &

    Te Changsha 410004 Hunan Peoples R China;

    Cent South Univ Forestry &

    Technol Hunan Prov Key Lab Mat Surface Interface Sci &

    Te Changsha 410004 Hunan Peoples R China;

    Cent South Univ Forestry &

    Technol Hunan Prov Key Lab Mat Surface Interface Sci &

    Te Changsha 410004 Hunan Peoples R China;

    Changsha Univ Coll Mech &

    Elect Engn Changsha 410022 Hunan Peoples R China;

    Cent South Univ Forestry &

    Technol Hunan Prov Key Lab Mat Surface Interface Sci &

    Te Changsha 410004 Hunan Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 光学;
  • 关键词

    Laser cladding; Composite coatings; Fretting wear; Aging treatment;

    机译：激光包层;复合涂层;烦恼磨损;老化治疗;

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