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冯力,王贵平,李洞亭,安国升,李文生.冷喷涂辅助原位合成高铝青铜涂层的组织与性能[J].稀有金属材料与工程(英文),2021,50(5):1720~1726.[Feng Li,Wang Guiping,Li Dongting,An Guosheng and Li Wensheng.The organization and performance of cold spray-assisted in-situ synthesis of high aluminum bronze coatings[J].Rare Metal Materials and Engineering,2021,50(5):1720~1726.]
The organization and performance of cold spray-assisted in-situ synthesis of high aluminum bronze coatings
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Received:May 04, 2020  
DOI:
Key words: induction remelting  in situ synthesis  high aluminum bronze  friction
Foundation item:国家重点研发计划(2016YFE0111400);甘肃省重点研究项目(17YF1WA159);中国博士后科学(2018-63-200618-34)
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Feng Li,Wang Guiping,Li Dongting,An Guosheng and Li Wensheng  
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Abstract:
      In this study, a method of cold-spray-assisted synthesis of high-aluminum bronze alloy coating is proposed, and a high-aluminum bronze coating is prepared on 45 steel matrix. The corrosion resistance of the alloy coating was measured with the CHI660D electrochemical test system by analyzing the micromorphology and phase tissue of the coating by SEM, EDS and XRD. The results show that after induction remelting, the in situ synthesis tissue of cold spray metal mixed coating is a high aluminum bronze alloy coating of beta-phase, alpha-phase, gamma-2-phase and k-phase, with dense coating and low porosity. The high aluminum bronze alloy coating in situ has good mechanical properties and wear resistance, corrosion resistance, and the performance of cast block high aluminum bronze alloy is close. The hardness of the coating is 357.0HV and the dry friction coefficient with alumina is 0.320. The stable voltages in 3.5wt.%NaCl and 5.0wt.%H2SO4 corrosion media were -366mV and -387mV, respectively.