Page 41 - 《摩擦学学报》2021年第1期

第 41 卷 第 1 期 摩 擦 学 学 报 Vol 41 No 1
2021 年 1 月 Tribology Jan, 2021

DOI: 10.16078/j.tribology.2020052

石英添加量对搪瓷涂层微观结构及摩擦

磨损性能的影响

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瞿学炜 , 李翠霞 , 李文生 , 朱正泽 , 邱晓来 , 杨晓永 1
(1. 兰州理工大学 有色金属先进加工与再利用国家重点实验室，甘肃 兰州 730050;
2. 金川集团有限公司，甘肃 金昌 737100;
3. 浙江超达阀门股份有限公司，浙江 温州 325105)
摘 要: 采用一次浸搪法制备石英添加量为0%、4%、8%和12%的搪瓷涂层，通过HSR-2M型高速往复摩擦试验机测
试涂层摩擦学性能，SEM和EDS分别表征涂层微观组织和磨损形貌，并分析磨损机理. 结果表明：搪瓷涂层中石英添
加质量分数为0%和4%时，涂层气孔率大、气孔密度低，摩擦时形成的微裂纹易沿着气孔间最短距离方向扩展，硬质
磨屑转移至摩擦对偶表面而使涂层磨痕底部形成尖锐的凹槽，磨损形式主要为磨粒磨损和脆性断裂. 而石英添加质
量分数为8%和12%的涂层气孔率小、气孔密度高，其中8%添加量涂层的孔径分布更加均匀，磨损率及磨痕深度仅
为未添加涂层的1/3. 摩擦过程中孔径均匀的小尺寸气孔增大了裂纹扩展时所需的能量势垒而阻碍裂纹扩展，磨屑
被气孔拦截后在磨损表面形成密实的堆积层，避免了摩擦对偶与涂层的直接接触而起到减摩作用，磨损形式主要
为磨粒磨损.
关键词: 石英添加量; 搪瓷涂层; 气孔率; 气孔密度; 裂纹拓展
中图分类号: TG173.7 文献标志码: A 文章编号: 1004-0595(2021)01–0038–09

Quartz Addition Effects on Microstructure and Friction Wear
Properties of Enamel Coating

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QU Xuewei , LI Cuixia , LI Wensheng , ZHU Zhengze , QIU Xiaolai , YANG Xiaoyong

(1. School of Material Science and Engineering, Lanzhou University of Technology, Gansu Lanzhou 730050, China
2. Jinchuan Group Ltd, Gansu Jinchang 737100, China
3. Zhejiang Chaoda Valve Co Ltd, Zhejiang Wenzhou 325105, China)
Abstract: Enamel coatings with the quartz addition amount of 0%, 4%, 8% and 12% were prepared by the single
dipping method. The tribological properties of the coating were tested by HSR-2M high-speed reciprocating friction
tester. In order to analyze the wear mechanism, scanning electron microscope was used to characterize the
microstructure and the wear morphology of enamel coatings. Results showed that when the addition amounts of quartz
were 0% and 4%, the enamel coatings had high porosity and low pore density. Microcracks tended to extend along the
shortest distance among the pores, and the hard abrasives transferred to the worn surface during the friction process,
which made sharp grooves at the bottom of the sliding wear track. The main wear mechanisms were abrasive wear and

Received 2 April 2020, revised 12 June 2020, accepted 24 June 2020, available online 28 January 2021.
*Corresponding author. E-mail: liws@lut.edu.cn, Tel: +86-931-2976706.
The project was supported by the National Natural Science Foundation of China (51674130), the program of “ Science and
Technology International Cooperation Demonstrative Base of Metal Surface Engineering along the Silk Road” (2017D01003),
Gansu Province International Scientific and Technological Cooperation Special Commissioner Program (17JR7WA017) and Gansu
Key Research and Development Program Project (17YF1WA159).
国家自然科学基金(51674130)，国家丝绸之路经济带金属表面工程技术国合基地奖补基金(2017D01003)，甘肃省国际科技合
作特派员计划(17JR7WA017)和甘肃省重点研发计划项目(17YF1WA159)资助.