A STUDY OF GLOW-DISCHARGE IONIZED NICKEL-CHROMIZING WITH AN ARC SOURCE AND THE CORROSION RESSISATNCE OF THE DIFFUSION LAYER OBTAINED BY THIS PROCESS

J Chin Soc Corr Pro

1996, Vol. 16

Issue (4): 287-292 DOI:

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A STUDY OF GLOW-DISCHARGE IONIZED NICKEL-CHROMIZING WITH AN ARC SOURCE AND THE CORROSION RESSISATNCE OF THE DIFFUSION LAYER OBTAINED BY THIS PROCESS

HE Qi; BIAN Jie; FAN Benhui; PAN Junde (Research Institute of Surface Engineering; Tai Yuan University of Technology)

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Abstract By using the technique of glow-discharge ionized surface alloying with an arc source, nickel-chromizing was conducted on the surface of carbon-steel samples with different carbon-content 0.1 wt%, 0.45 wt% and 0.8 wt%, designated as 10 steel, 45 steel and T8 steel, respectively. The microstructure, the elemental concentration distribution and the phases of the surface layer were studied. The corrosion resistance of the diffusion layer in 0.05 mol/L H2SO4 solution was evaluated. The results indicated that the ndcrostructure of Ni-Cr alloying layer on 10 steel was γ-phase only and on 45 and T8 steels were γ-phase based Cr23C6 and Cr7C3. The corrosion resistance of alloying layer on 10,45 steels was comparable with that of 18-8stainless steel. However, nickel-chromizing did not improve corrosion resistance for T8 steel.

Key words: Cold cathode arc source Nickel-chromizing Corrosion resistance

Received: 25 August 1996

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HE Qi; BIAN Jie; FAN Benhui; PAN Junde (Research Institute of Surface Engineering; Tai Yuan University of Technology). A STUDY OF GLOW-DISCHARGE IONIZED NICKEL-CHROMIZING WITH AN ARC SOURCE AND THE CORROSION RESSISATNCE OF THE DIFFUSION LAYER OBTAINED BY THIS PROCESS. J Chin Soc Corr Pro, 1996, 16(4): 287-292.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1996/V16/I4/287

1潘俊德等．CNPatent．90103841．51990．62郑维能等．热加工工艺,1992,(6):33李玉清,刘锦岩．高温合金晶界间隙相,北京:冶金工业出版社,1990．3

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