载荷对非晶碳基薄膜腐蚀磨损性能的影响

员朝鑫, 王向谦, 刘斌, 强进, 谢明玲

doi:10.16577/j.issn.1001-1560.2024.0129

材料保护 >

2024 , Vol. 57 >Issue 6: 74 - 80

DOI: https://doi.org/10.16577/j.issn.1001-1560.2024.0129

研究篇

载荷对非晶碳基薄膜腐蚀磨损性能的影响

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(甘肃省科学院传感技术研究所, 甘肃兰州 730000)

谢明玲(1989-),硕士，助理研究员，研究方向为功能薄膜材料及制备技术，电话：0931-8618499,E-mail:mlxie@163.com

收稿日期: 2023-10-31

修回日期: 2024-01-17

录用日期: 2024-01-25

网络出版日期: 2024-06-24

基金资助

甘肃省青年科技基金计划(22JR5RA776,21JR11RA216);甘肃省自然科学基金(22JR5RA775)

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Influence of Load on Corrosion and Wear Properties for Amorphous Carbon-Based Films

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(Institute of Sensing Technology, Gansu Academy of Sciences, Lanzhou 730000, China)

XIE Mingling(1989-), Master, Associate Research Fellow, Research Focus: Functional Thin Materials and Preparation Techniuqes, Tel.: 0931-8618499,E-mail: mlxie@163.com

Received date: 2023-10-31

Revised date: 2024-01-17

Accepted date: 2024-01-25

Online published: 2024-06-24

Supported by

Gansu Province Youth Science and Technology Foundation Program (22JR5RA776,21JR11RA216);Natural Science Foundation of Gansu Province (22JR5RA775)

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摘要

腐蚀环境条件下的动力件经受腐蚀和磨损的双重损伤，载荷的往复作用使得金属表面的钝化层失去作用而加速损伤，非晶碳基薄膜在腐蚀和摩擦领域展现出优异的防护性能。为了研究载荷对非晶碳基薄膜腐蚀磨损性能的影响，明确各个损失分量随载荷的变化关系，采用磁控溅射在304不锈钢表面制备了a-C薄膜、a-C:Cr薄膜和a-C:Si薄膜，通过动电位极化测试3种薄膜在5.0 mol/L HNO₃条件下的静态腐蚀行为，同时结合3种薄膜在去离子水和5.0 mol/L HNO₃环境下的不同载荷作用的磨损量，分析研究了载荷对腐蚀摩擦过程中各个分量的影响。结果表明：Si掺杂使a-C薄膜的腐蚀电流密度从1.11×10⁽-6 )A/cm²降低至3.96×10⁽-7 )A/cm²,Cr掺杂后腐蚀电流密度略微降低；随着载荷的增加3种薄膜的腐蚀损伤分量降低，机械磨损分量相应增加，对应的腐蚀-磨损交互作用对薄膜的损伤作用减弱。

关键词： 非晶碳基薄膜; 腐蚀摩擦; 腐蚀磨损; 载荷; 硝酸

本文引用格式

员朝鑫, 王向谦, 刘斌, 强进, 谢明玲 . 载荷对非晶碳基薄膜腐蚀磨损性能的影响[J]. 材料保护, 2024 , 57(6) : 74 -80 . DOI: 10.16577/j.issn.1001-1560.2024.0129

Abstract

Power components under corrosive environmental conditions are subjected to the double damage of corrosion and wear, and the reciprocating action of the load makes the passivation layer on the metal surface fail and accelerates the damage. Amorphous carbon-based films show the excellent protection in the areas of corrosion and friction. For studying the effect of load on the corrosion and wear properties of amorphous carbon-based thin films, and clarifying the relationship of the each loss component with the change of the load, thin films of a-C, a-C:Cr and a-C:Si were prepared on the surface of 304 stainless steel by magnetron sputtering. Meanwhile, the static corrosion behavior of three films under 5.0 mol/L HNO₃ was tested by kinetic potential polarization, and the effect of load on each component of the corrosion friction process was also analyzed and studied by combining the wear amounts of the three films under different loads in deionized water and 5.0 mol/L HNO₃ environments. Results showed that Si doping reduced the corrosion current density of a-C films from 1.11×10^-6 A/cm² to 3.96×10^-7 A/cm², while Cr doping slightly decreased the corrosion current density. As the load increased, the corrosion damage component of the three films decreased and the mechanical wear component increased accordingly, corresponding to a weakening of the damage effect on the films due to the corrosion-wear interaction.

Key words： amorphous carbon-based films; corrosion friction; corrosion-wear; load; nitric acid

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