黑磷烯量子点作为水基润滑添加剂的摩擦学性能研究  

Tribological Properties of Black Phosphorus Quantum Dots as Water-based Lubrication Additive

作　　者：王伟[1] 魏春艳 屈怡珅 董少文 吕凡凡 金杰 王快社[1] WANG Wei;WEI Chunyan;QU Yishen;DONG Shaowen;LÜFanfan;JIN Jie;WANG Kuaishe(School of Metallurgical Engineering,Xi'an University of Architecture and Technology,Xi'an 710055;School of Economics and Management,Beijing Jiaotong University,Beijing 100040;School of Mechanical,Electronic and Control Engineering Beijing Jiaotong University,Beijing 100040)

机构地区：[1]西安建筑科技大学冶金工程学院,西安710055 [2]北京交通大学经济管理学院,北京100040 [3]北京交通大学机械与电子控制工程学院,北京100040

出　　处：《机械工程学报》2024年第3期226-237,共12页Journal of Mechanical Engineering

基　　金：国家自然科学基金(51975450);陕西省青年科技新星(2021KJXX-32);西安市先进制造业技术攻关(21XJZZ0031)资助项目。

摘　　要：为了提高钛合金加工的表面质量,降低其加工成本。利用具有高承载、低摩擦等特性的黑磷烯量子点作为钛合金加工液的高效润滑介质。采用MS-T3001摩擦磨损试验机,以GCr15轴承钢/TC4钛合金盘为摩擦副研究黑磷烯量子点作为水基润滑添加剂的摩擦学性能。试验结果表明,黑磷烯量子点的平均横向尺寸为4.44 nm±0.86 nm,厚度约小于4 nm,在超纯水中表现出良好的分散性。随着接触压力增加,摩擦因数和磨损率先快速减小后缓慢增加。在1273 MPa接触压力、119.3 mg/L浓度下,和超纯水相比,黑磷烯量子点水基润滑添加剂的平均摩擦因数和磨损率分别降低27.6%和28.29%。磨痕表面分析表明,黑磷烯量子点水基润滑添加剂的抗磨减摩机理为钛合金磨损表面生成的Fe_(2)O_(3)、TiO_(2)、Al_(2)O_(3)氧化物组成的摩擦化学反应膜及黑磷烯量子点层间剪切和滚珠效应的协同作用。此研究为黑磷烯水基润滑添加剂在钛合金切削润滑领域的应用提供理论依据。In order to improve the surface quality of titanium alloy processing and reduce its processing cost.Black phosphorus quantum dots(BPQDS)which have the advantages of higher bearing capacity and lower friction are used as the efficient lubrication medium for titanium alloy processing fluid.Using MS-T3001 friction and wear tester,the tribological properties of BPQDS as water-based lubrication additive are studied with GCr15/TC4 as frictional pair.The experimental results show that the average transverse size and the thickness of BPQDS are 4.44 nm±0.86 nm and less than 4 nm,respectively.BPQDS are presented the excellent dispersion stability in the ultrapure water.With the increase of contact pressure,the coefficient of friction(COF)and wear rate are decreased rapidly and then increased slowly.At the contact press of 1273 MPa and the content of 119.3 mg/L,the average COF and wear rate of BPQDS as water-based lubrication additive are decreased by 27.6%and 28.29%respectively compared with ultra-pure water.The analysis of the worn surface find that the anti-wear and antifriction mechanism of BPQDS as water-based lubrication additive is the friction chemical reaction film composed of Fe_2O_3,TiO_2,Al_2O_(3)oxides formed on the worn surface of titanium alloy and the synergism of the interlaminar shear and ball effect of the BPQDS.The research results provide a theoretical basis for the industrial application of black phosphorus as water-based lubrication additive in the field of titanium alloy cutting lubrication.

关 键 词：黑磷烯量子点 润滑添加剂 摩擦学性能 润滑机理 

分 类 号：TH117[机械工程—机械设计及理论]