张东亚,赵飞飞,高峰,郭俊德,秦立果.芦荟胶液对Co-Cr-Mo合金摩擦学性能影响的研究[J].表面技术,2017,46(6):90-95.
ZHANG Dong-ya,ZHAO Fei-fei,GAO Feng,GUO Jun-de,QIN Li-guo.Effects of Aloe Mucilage on Tribological Properties of Co-Cr-Mo Alloy[J].Surface Technology,2017,46(6):90-95
芦荟胶液对Co-Cr-Mo合金摩擦学性能影响的研究
Effects of Aloe Mucilage on Tribological Properties of Co-Cr-Mo Alloy
投稿时间:2017-02-04  修订日期:2017-06-20
DOI:10.16490/j.cnki.issn.1001-3660.2017.06.014
中文关键词:  芦荟胶液  Co-Cr-Mo合金  润湿性  摩擦学性能  转移膜
英文关键词:aloe mucilage  Co-Cr-Mo alloy  wettability  tribological properties  transfer film
基金项目:国家自然科学基金项目(51605381);陕西省教育厅专项项目(16JK1540)
作者单位
张东亚 西安理工大学 机械及精密仪器工程学院,西安 710048 
赵飞飞 西安理工大学 机械及精密仪器工程学院,西安 710048 
高峰 西安理工大学 机械及精密仪器工程学院,西安 710048 
郭俊德 西安交通大学 机械工程学院,西安 710049 
秦立果 西安交通大学 机械工程学院,西安 710049 
AuthorInstitution
ZHANG Dong-ya School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China 
ZHAO Fei-fei School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China 
GAO Feng School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China 
GUO Jun-de School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China 
QIN Li-guo School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China 
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中文摘要:
      目的 芦荟多糖胶液具有良好的流变性和生物相容性,有望成为一种绿色润滑液。方法 首先提取新鲜芦荟胶液充当润滑液,采用红外光谱分析芦荟胶液中的多糖成分。在球-盘摩擦实验装置上分别研究干摩擦、水和芦荟胶液润滑下,氧化锆陶瓷球与Co-Cr-Mo合金对磨时的润滑行为,并对不同润湿性的Co-Cr-Mo表面的摩擦学性能进行初步探讨。最后利用扫描电镜和能谱仪分析磨损表面的微观形貌和元素分布。结果 润湿性对Co-Cr-Mo表面的摩擦学性能有显著影响。干摩擦条件下,疏水性表面的平均摩擦系数为0.65,低于亲水性表面的摩擦系数。水润滑时,疏水性表面的平均摩擦系数为0.35,要比亲水性表面的低20%左右。当采用芦荟胶液润滑时,Co-Cr-Mo表面的摩擦系数显著降低,其中亲水性表面的摩擦系数更稳定,其平均摩擦系数仅为0.28。结论 芦荟胶液润滑条件下,合金表面的磨损较轻,其主要磨损形式表现为轻微的犁沟。芦荟胶液中的多糖组分在摩擦作用下在摩擦表面形成转移膜,对Co-Cr-Mo合金起到润滑防护的作用。
英文摘要:
      Aloe mucilage solution featuring in good rheological property and biocompatibility is expected to be potential green lubricant. Firstly, fresh aloe mucilage was extracted as lubricant, and polysaccharide of aloe mucilage was analyzed with infrared spectrum. Tribological behavior of zirconia ceramic ball sliding against Co-Cr-Mo alloy provided with dry friction, water lubrication and aloe mucilage lubrication, respectively was studied on ball-on-disk frictional experiment apparatus. Tribological properties of the Co-Cr-Mo surfaces with different wettability were discussed preliminarily. Finally, morphology and element distribution of the worn surface were analyzed using with a scanning electron microscope and energy disperse spectroscopy. The wettability had obvious influence on tribological properties of Co-Cr-Mo surface. Provided with dry friction condition, average friction coefficient of hydrophobic surface was 0.65, lower than that of hydrophilic surface. Provided with water lubrication, the friction coefficient was 0.35, about 20% lower than that of hydrophilic surface. Provided with aloe mucilage lubrication, the friction coefficient reduced significantly to 0.28, less stable than that of hydrophilic surface. Provided with aloe mucilage lubrication, the alloy surface is subject to slight wear with main wear form of shallow furrow. The polysaccharide in aloe mucilage generates a transfer film during the friction process, which can lubricate and protect the Co-Cr-Mo alloy.
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