| 引用本文: | 穆明,梁军,肖乾,周新建.钛合金微弧氧化一步制备含石墨的减摩涂层[J].材料科学与工艺,2013,21(1):18-23.DOI:10.11951/j.issn.1005-0299.20130104. |
| MU Ming,LIANG Jun,XIAO Qian,ZHOU Xin-jian.One-step preparation of graphite-containing antifriction coating on Ti alloy by plasma electrolytic oxidation[J].Materials Science and Technology,2013,21(1):18-23.DOI:10.11951/j.issn.1005-0299.20130104. |
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| 摘要: |
| 为了进一步提高钛合金表面微弧氧化陶瓷涂层的摩擦磨损性能,在石墨分散的Na2CO3-Na2SiO3-KOH电解液溶液中一步制备了含自润滑微粒的微弧氧化复合涂层.利用X射线衍射仪(XRD)、X射线光电子能谱仪(XPS)和扫描电子显微镜(SEM)研究了未添加和添加石墨微弧氧化涂层的相组成和微结构,采用往复式球-盘试验机评价了两种涂层的摩擦学性能.结果表明:加入到电解液中的石墨在微弧氧化过程中进入到涂层中,从而得到含有固体润滑微粒的复合涂层；在干摩擦条件下,含石墨的微弧氧化涂层相比于不含石墨的涂层具有更小的摩擦系数. |
| 关键词: 微弧氧化 钛合金 氧化涂层 石墨 摩擦磨损 |
| DOI：10.11951/j.issn.1005-0299.20130104 |
| 分类号: |
| 基金项目:中国科学院“百人计划”项目；江西省研究生创新基金项目(YC2011-S078)；国家自然科学基金项目(51005075). |
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| One-step preparation of graphite-containing antifriction coating on Ti alloy by plasma electrolytic oxidation |
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MU Ming 1,2,LIANG Jun1,XIAO Qian 2,ZHOU Xin-jian 2
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(1.State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences, Lanzhou 730000,China;;2.The Ministry of Education Key Laboratory,Conveyance tools and Equipment,East China Jiaotong University,Nanchang 330013,China)
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| Abstract: |
| One-step plasma electrolytic oxidation (PEO) process in a graphite-dispersed Na2CO3-Na2SiO3-KOH electrolyte was used to prepare a graphite-containing oxide composite coating on titanium alloy to improve the tribological property of the coating.The composition and microstructure of the oxide coatings produced in the Na2CO3-Na2SiO3-KOH electrolytes with and without addition of graphite particles were analyzed by X-ray diffractometer (XRD),X-ray photoelectron spectroscope (XPS) and scanning electric microscope (SEM).The tribological properties of the oxide coatings were evaluated using a reciprocating ball-on-disk tribometer.Results show that the graphite-containing oxide composite coating can be successfully produced on titanium alloy in the graphite-dispersed electrolyte using PEO process.The graphite-containing oxide coating has lower friction coefficient than the oxide coating without graphite under dry sliding condition. |
| Key words: plasma electrolytic oxidation titanium alloy oxide coating graphite friction and wear |
