钟林,陈俊名,王国荣,康桂蓉,魏刚,廖文玲.激光冲击强化与表面织构协同作用对活塞环-缸套副摩擦性能的影响[J].表面技术,2025,54(11):63-73.
ZHONG Lin,CHEN Junming,WANG Guorong,KANG Guirong,WEI Gang,LIAO Wenling.Synergistic Effect of Laser Shock Peening and Surface Texture on the Friction and Wear Behaviour of Piston Ring-Cylinder Liner Pair[J].Surface Technology,2025,54(11):63-73 |
| 激光冲击强化与表面织构协同作用对活塞环-缸套副摩擦性能的影响 |
| Synergistic Effect of Laser Shock Peening and Surface Texture on the Friction and Wear Behaviour of Piston Ring-Cylinder Liner Pair |
| 投稿时间：2024-10-11 修订日期：2025-02-24 |
| DOI：10.16490/j.cnki.issn.1001-3660.2025.11.005 |
| 中文关键词: PTFE/42CrMo摩擦副 激光冲击强化 表面织构 协同作用 摩擦性能 |
| 英文关键词:PTFE/42CrMo friction pair laser shock peening surface texturing synergistic effect friction performance |
| 基金项目:国家自然科学基金面上项目(51775463);四川省科技教育联合基金面上项目(2024NSFSC2021) |
| 作者 | 单位 |
| 钟林 | 西南石油大学 机电工程学院 能源装备研究院，成都 610500 |
| 陈俊名 | 西南石油大学 机电工程学院 能源装备研究院，成都 610500 |
| 王国荣 | 西南石油大学 机电工程学院 能源装备研究院，成都 610500 |
| 康桂蓉 | 四川麦斯威石油钻采工具有限公司，四川 广汉 618301 |
| 魏刚 | 西南石油大学 机电工程学院 能源装备研究院，成都 610500 |
| 廖文玲 | 成都工业学院 智能制造学院，成都 611730 |
|
| Author | Institution |
| ZHONG Lin | School of Mechatronic Engineering,Energy Equipment Institute, Southwest Petroleum University, Chengdu 610500, China |
| CHEN Junming | School of Mechatronic Engineering,Energy Equipment Institute, Southwest Petroleum University, Chengdu 610500, China |
| WANG Guorong | School of Mechatronic Engineering,Energy Equipment Institute, Southwest Petroleum University, Chengdu 610500, China |
| KANG Guirong | Sichuan Maxwell Oil Tools Co., Ltd., Sichuan Guanghan 618301, China |
| WEI Gang | School of Mechatronic Engineering,Energy Equipment Institute, Southwest Petroleum University, Chengdu 610500, China |
| LIAO Wenling | School of Intelligent Manufacturing, Chengdu Technological University, Chengdu 611730, China |
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| 中文摘要: |
| 目的 针对储气库压缩机活塞环-缸套副的磨粒磨损和黏着磨损失效，创新性地提出利用激光冲击强化与表面织构协同来提升PTFE/42CrMo活塞环缸套副的润滑及耐磨性能的新方法。方法 针对42CrMo缸套试样，首先采用脉冲能量为5 J、光斑直径为3 mm、脉冲宽度为10 ns、搭接率为50%的激光工艺参数进行冲击强化处理;其次，在冲击强化后的42CrMo试样表面，采用激光烧蚀出直径约800 μm、深度约100 μm、面积比20%的均布圆形凹坑。基于UMT高频线性往复模块，在模拟载荷200 N、频率5 Hz、固相粉尘粒径10~20 μm、质量分数1%的ISO VG 32润滑油浸没环境下，开展PTFE/42CrMo活塞环缸套副单元摩擦磨损试验研究，以摩擦因数、磨损量和磨损形貌等特征综合分析评价织构、激光冲击强化和二者协同作用下配对副的摩擦学性能。结果 在模拟测试工况下，未作处理试样的平均摩擦因数为0.140 6，总磨损量为1.188 mg，而经激光冲击强化与表面织构协同作用后，试样的平均摩擦因数为0.069 9，总磨损量为0.670 mg，协同作用可使PTFE/42CrMo活塞环缸套副的摩擦因数降低约50%，耐磨性能提升了约43%，主要归因于织构可捕捉储存磨损产生的磨粒及激光强化可降低黏着磨损的协同作用，另一方面，激光冲击强化作用产生的表面残余压应力能够中和激光烧蚀织构区域的部分残余拉应力，从而有效消除了织构边缘的热效应缺陷，表面硬度的提升有效提升了配对副的抗磨性能。结论 该研究为储气库压缩机复杂介质条件下活塞环-缸套副润滑及耐磨性能的提升提供了创新的解决思路。 |
| 英文摘要: |
| Recent studies have shown that wear failure of the piston ring-cylinder liner pair is one of the main causes of compressor failures in gas storage tanks. Surface texturing technology can improve the tribological properties of materials, but the dynamic wear process will lead to changes in the shape and size of the texture, and the wear and friction reduction effect will be reduced. Therefore, it is necessary to further improve the service life of the friction pair in combination with other methods in the severe working conditions of gas storage compressors. Laser shock peening (LSP) can improve the wear resistance and fatigue strength of the material. In order to improve the lubrication and wear resistance of the PTFE/42CrMo piston ring-cylinder liner pair through the synergy of laser shock peening and surface texturing in the light of the abrasive wear and adhesive wear loss of the piston ring-cylinder line pair in gas storage compressor. The 42CrMo alloy steel cylinder liner was cut into unit specimens of 43.3 mm×19 mm×8 mm and ground to remove burrs and polished with a polishing machine on the impact surface. The 42CrMo cylinder liner specimens were firstly subject to laser shock peening by Y09-N04 infrared nanosecond laser. The laser process parameters were 5 J pulse energy, 3 mm spot diameter, 10 ns pulse width, and 50% overlap. Secondly, the RFL20H fibre laser marker was used to ablate evenly distributed circular pits with a diameter of about 800 μm, a depth of about 100 μm, and an area ratio of 20% on the surface of the shock peening-enhanced 42CrMo specimens. Based on the UMT high-frequency linear reciprocating module, the friction and wear test was carried out to the PTFE/42CrMo piston ring-cylinder liner pair unit under the simulated load of 200 N, frequency of 5 Hz, solid-phase dust particle size of 10-20 μm, mass fraction of about 1% of the ISO VG 32 lubricating oil infiltration environment to evaluate the friction performance of the pair under the combined effects of weaving, laser shock peening, and the synergistic effect of the two. The friction coefficient, wear amount and wear morphology were analyzed and evaluated. The results showed that under the simulated test conditions, the average coefficient of friction of the untreated specimen was 0.140 6 and the total wear was 1.188 mg, while the average coefficient of friction of the laser shock peening synergized with surface texturing was 0.069 9 and the total wear was 0.670 mg. The laser shock peening synergistic surface texturing could reduce the coefficient of friction of PTFE/42CrMo piston ring-cylinder liner pair by about 50%, and increase the wear resistance by about 43%, which was mainly attributed to the synergistic effect of texturing to capture and store wear particles and the laser peening to reduce the adherent wear and the other reason was the residual compressive stress of the surface under the effect of the laser shock peening to neutralize some residual tensile stress of the laser-abraded textured area, thus effectively eliminating the thermal effect defects at the edges of the texturing, followed by the improvement of the surface hardness to effectively eliminate the wear resistance. On the other hand, the residual compressive stress on the surface texturing is neutralized by the laser impact strengthening, thus effectively eliminating the thermal effect defects at the edges of the texturing, and the increase in surface hardness effectively improves the wear resistance of the mating pairs. In summary, laser shock peening and surface texturing synergistically improve the tribological performance of PTFE/42CrMo friction pair, which provides an innovative solution for the improvement of lubrication and wear resistance of piston ring-cylinder liner pair under the complex media conditions of gas storage tank compressor. |
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