发动机活塞用ZL109铝合金表面等离子喷涂镍基合金涂层的耐磨性能
Wear Resistance of Plasma Sprayed Ni-Based Alloy Coating on ZL109 AluminumAlloy Surface for Engine Piston
摘 要
采用等离子喷涂技术在发动机活塞用ZL109铝合金表面制备Ni60CuMo合金涂层,研究了涂层的微观形貌、物相组成、显微硬度以及不同条件下的耐磨性能。结果表明:涂层由富铬区和富镍区交替重叠构成,与基体间的结合方式为机械结合;涂层的孔隙率为2.48%,平均显微硬度为792.91 HV,约为基体的6倍以上;随试验温度由25℃升高至450℃,涂层的摩擦因数和磨损质量损失均降低,450℃油润滑下涂层的平均摩擦因数为0.037,磨损质量损失为7.35 mg,仅为基体的1/4左右;随试验温度的升高,干摩擦下涂层的磨损机制由剥落失效转变为氧化磨损与黏着磨损,油润滑下由磨粒磨损转变为磨粒磨损和黏着磨损,最后转变为黏着磨损。
等离子喷涂
镍基合金涂层
显微硬度
耐磨性能
磨损机制
aluminum alloy
plasma spraying
Ni-based alloy coating
microhardness
wear resistance
wear machanism
Abstract
A Ni60CuMo alloy coating was prepared by plasma spraying on the surface of ZL109 aluminum alloy for engine piston. The microstructure, phase composition, microhardness and wear resistance under different conditions of the coating were studied. The results show that the coating was composed of alternately overlapping Cr-rich zone and Ni-rich zone, and the bonding mode between coating and substrate was mechanical bonding. The porosity of the coating was 2.48%. The average microhardness was 792.91 HV and was about more than 6 times that of the substrate. The friction coefficient and wear mass loss decreased with increasing test temperature from 25 ℃ to 450 ℃. Under 450 ℃ oil lubrication condition, the average friction coefficient of the coating was 0.037, and the wear mass loss was 7.35 mg, which was only about 1/4 of the substrate. With increasing test temperature, the wear mechanism of the coating changed from peeling failure to oxidation wear and adhesive wear under dry friction condition, and from abrasive wear to abrasive wear and adhesive wear under oil lubrication condition, and finally to adhesive wear.
中图分类号 TG174.442 DOI 10.11973/jxgccl202211004
所属栏目 试验研究
基金项目 江苏省自然科学基金资助项目(BK20191036);国防基础科研计划项目(JCKY 61420051911)
收稿日期 2021/12/31
修改稿日期 2022/5/16
网络出版日期
作者单位点击查看
备注杜伟(1997-),男,山东临沂人,硕士研究生
引用该论文: DU Wei,HAN Bingyuan,CUI Fangfang,HANG Weixing,CONG Mengqi,XU Wenwen,CHU Jiajie,GAO Xianghan,WU Haidong. Wear Resistance of Plasma Sprayed Ni-Based Alloy Coating on ZL109 AluminumAlloy Surface for Engine Piston[J]. Materials for mechancial engineering, 2022, 46(11): 26～32
杜伟,韩冰源,崔方方,杭卫星,丛孟启,徐文文,楚佳杰,高祥涵,吴海东. 发动机活塞用ZL109铝合金表面等离子喷涂镍基合金涂层的耐磨性能[J]. 机械工程材料, 2022, 46(11): 26～32
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【6】林基辉,刘德鑫,李耀,等.激光合金化技术在表面改性中的应用研究进展[J].热加工工艺,2020,49(8):13-16. LIN J H,LIU D X,LI Y,et al.Research progress in application of laser alloying technology in surface modification[J].Hot Working Technology,2020,49(8):13-16.
【7】MU Y, ZHANG L, XU L, et al. Frictional wear and corrosion behavior of AlCoCrFeNi high-entropy alloy coatings synthesized by atmospheric plasma spraying[J]. Entropy, 2020, 22:740-746.
【8】王博,刘洋,王福德,等.航空发动机及燃气轮机涡轮叶片热障涂层技术研究及应用[J].航空发动机,2021,47(增刊1):25-31. WANG B,LIU Y,WANG F D,et al.Research and application of thermal barrier coatings for aeroengine and gas turbine blades[J].Aeroengine,2021,47(S1):25-31.
【9】万伟伟,陈新华,屈炼石,等.走向人工智能时代的热喷涂技术发展现状与趋势[J].粉末冶金工业,2021,31(4):94-99. WAN W W,CHEN X H,QU L S,et al.The development status and trend of thermal spraying technology towards artificial intelligence era[J].Powder Metallurgy Industry,2021,31(4):94-99.
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【11】PATELP D,PATELR N,PATELH C,et al Experimental ivstigation on life cycle anaysis ofthe Moly(Mo) coated piston ring in C.I.Engine[C]//Proceedings of International Conference on Advances in Tribology and Engineering Systems. Berlin:Springer,2013:321-329.
【12】孔令晨,冯胜强,董天顺,等.A356铝合金表面Al-25Si等离子喷涂层的组织和耐磨性能研究[J].轻合金加工技术,2021,49(4):54-59. KONG L C,FENG S Q,DONG T S,et al.Structure and wear resistance of Al-25Si plasma sprayed coatings on A356 aluminum alloy surface[J].Light Alloy Fabrication Technology,2021,49(4):54-59.
【13】邵若男,贺甜甜,杜三明,等.铝合金表面Al2O3-Ni涂层的制备及耐磨性研究[J].表面技术,2020,49(4):173-179. SHAO R N,HE T T,DU S M,et al.Preparation and wear resistance of Al2O3-Ni coating on aluminum alloy surface[J].Surface Technology,2020,49(4):173-179.
【14】陈健,赵蕾,王璇,等.铸铁活塞裙表面等离子喷涂Mo涂层性能研究[J].江苏科技大学学报(自然科学版),2016,30(5):439-444. CHEN J,ZHAO L,WANG X,et al.Properties of plasma sprayed Mo composite coatings on cast iron alloy surface[J].Journal of Jiangsu University of Science and Technology (Natural Science Edition),2016,30(5):439-444.
【15】冯权,常万里,金毅,等.超音速等离子喷涂技术在活塞裙表面热喷涂材料的研究[J].模具制造,2015,15(7):88-93. FENG Q,CHANG W L,JIN Y,et al.Research of the thermal spraying materials on the piston skirt surface by supersonic plasma spraying[J].Die & Mould Manufacture,2015,15(7):88-93.
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【18】陈书赢,王海斗,马国政,等.等离子喷涂层原生性孔隙几何结构的分形及统计特性[J].物理学报,2015,64(24):101-108. CHEN S Y,WANG H D,MA G Z,et al.Fractal and statistical properties of the geometrical structure of natural pores within plasma sprayed coatings[J].Acta Physica Sinica,2015,64(24):101-108.
【19】YANG X C, LI G L, WANG H D, et al. Effect of flame remelting on microstructure and wear behaviour of plasma sprayed NiCrBSi-30%Mo coating[J]. Surface Engineering, 2016,34(3): 181-188.
【20】李增荣.铝制内燃机缸体内壁铁基涂层的制备及摩擦学特性的研究[D].沈阳:沈阳工业大学,2016. LI Z R.Study on the preparation of the iron-base coating of aluminum internal combustion engine cylinder wall and the tribological properties[D].Shenyang:Shenyang University of Technology,2016.
【21】周琪,卢礼灿,易戈文,等.等离子喷涂Cr3C2/NiCr金属陶瓷基高温润滑涂层的摩擦学行为研究[J].表面技术,2019,48(8):212-217. ZHOU Q,LU L C,YI G W,et al.Tribological behavior of plasma sprayed Cr3C2/NiCr cermet based high temperature lubrication coatings[J].Surface Technology,2019,48(8):212-217.
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