Morphology, Structure, Microhardness and Corrosion Resistance of Ni-W Coating Annealed in Hydrogen and Argon Atmosphere
作者: Qiongyu ZhouWei XieYadong ZhangLiang QiXiaofen Wang
作者单位: 1Jiangxi University of Science and Technology
2Jiangxi Academy of Sciences
刊名: Journal of Materials Engineering and Performance, 2017, Vol.26 (6), pp.2465-2471
来源数据库: Springer Journal
DOI: 10.1007/s11665-017-2658-y
关键词: Annealing atmosphereCorrosion resistanceElectrodepositionNi-W coating
英文摘要: In this paper, an amorphous Ni-W coating was electrodeposited on the low-carbon steel and then annealed in hydrogen and argon atmosphere. Their characterization was carried out using scanning electron microscopy and x-ray diffraction. The corrosion characterization was carried out using the potentiodynamic polarization (Tafel) and electrochemical impedance spectroscopy. The results show that microcracks inevitably exist on the surface of Ni-W coating when annealed at 750 °C or higher temperature. After annealing treatment, amorphous structure transforms to crystalline and some new phases are precipitated, which is significantly affected by the annealing temperature and atmosphere. The microhardness of annealed Ni-W coatings is much higher than that of as-deposited coating, while an...
原始语种摘要: In this paper, an amorphous Ni-W coating was electrodeposited on the low-carbon steel and then annealed in hydrogen and argon atmosphere. Their characterization was carried out using scanning electron microscopy and x-ray diffraction. The corrosion characterization was carried out using the potentiodynamic polarization (Tafel) and electrochemical impedance spectroscopy. The results show that microcracks inevitably exist on the surface of Ni-W coating when annealed at 750 °C or higher temperature. After annealing treatment, amorphous structure transforms to crystalline and some new phases are precipitated, which is significantly affected by the annealing temperature and atmosphere. The microhardness of annealed Ni-W coatings is much higher than that of as-deposited coating, while an...
全文获取路径: Springer  (合作)
分享到:
来源刊物:

×
关键词翻译
关键词翻译
  • annealed 已退火的
  • coating 覆盖层
  • microhardness 显微硬度
  • corrosion 腐蚀
  • annealing 热处理
  • improvement 改良
  • temperature 温度
  • crystalline 晶质的
  • Annealing 退火
  • amorphous 非晶质的