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镁锂合金表面含碳陶瓷层的摩擦性能

张玉林 朱鑫彬 于佩航 左佑 张优 陈飞

张玉林, 朱鑫彬, 于佩航, 左佑, 张优, 陈飞. 镁锂合金表面含碳陶瓷层的摩擦性能[J]. 工程科学学报, 2018, 40(5): 605-611. doi: 10.13374/j.issn2095-9389.2018.05.011
引用本文: 张玉林, 朱鑫彬, 于佩航, 左佑, 张优, 陈飞. 镁锂合金表面含碳陶瓷层的摩擦性能[J]. 工程科学学报, 2018, 40(5): 605-611. doi: 10.13374/j.issn2095-9389.2018.05.011
ZHANG Yu-lin, ZHU Xin-bin, YU Pei-hang, ZUO You, ZHANG You, CHEN Fei. Friction properties of C-containing ceramic coatings on an Mg-Li alloy[J]. Chinese Journal of Engineering, 2018, 40(5): 605-611. doi: 10.13374/j.issn2095-9389.2018.05.011
Citation: ZHANG Yu-lin, ZHU Xin-bin, YU Pei-hang, ZUO You, ZHANG You, CHEN Fei. Friction properties of C-containing ceramic coatings on an Mg-Li alloy[J]. Chinese Journal of Engineering, 2018, 40(5): 605-611. doi: 10.13374/j.issn2095-9389.2018.05.011

镁锂合金表面含碳陶瓷层的摩擦性能

doi: 10.13374/j.issn2095-9389.2018.05.011
基金项目: 

大学生研究训练计划资助项目(2017J00174,2017J00175)

国家自然科学基金资助项目(51601015)

详细信息
  • 中图分类号: TG174.4

Friction properties of C-containing ceramic coatings on an Mg-Li alloy

  • 摘要: 通过在Na2SiO3-KOH基础电解液中加入石墨烯添加剂,在镁锂合金表面制备出一层自润滑的含碳陶瓷层. 利用扫描电镜、原子力显微镜以及X射线衍射仪分析了陶瓷层的表面形貌、粗糙度以及物相组成,利用摩擦磨损试验仪对陶瓷层在室温下的摩擦学性能进行研究. 其结果表明,加入石墨烯后制备出的含碳陶瓷层表面放电微孔分布均匀,且其微孔尺寸和表面粗糙度均明显降低. 相比于镁锂合金,陶瓷层的表面硬度也得到明显的提高. 此外,含碳陶瓷层主要由SiO2、Mg2SiO4以及MgO物相组成,而石墨烯则以机械形式弥散分布于陶瓷层中并起到减摩作用. 当石墨烯体积分数为1%时,陶瓷层表面显微硬度为1317.6 HV0.1 kg,其摩擦系数仅为0.09,其耐磨性明显提高. 同时,陶瓷层磨痕的深度和宽度均明显小于镁锂合金,而且较为光滑,表明陶瓷层表面没有发生严重的黏着磨损.
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  • 收稿日期:  2017-07-05

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