ELECTRODEPOSITION OF Cr-P ALLOYS AND THEIR CORROSION ASSISTANCE

J Chin Soc Corr Pro

1996, Vol. 16

Issue (2): 145-148 DOI:

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ELECTRODEPOSITION OF Cr-P ALLOYS AND THEIR CORROSION ASSISTANCE

Gao Xuefeng;Zhu Rizhang(Beijing University of Science and Tchnolony)Masamichi Kowaka(C. Uyemuru Industry Co.; Ltd. OSAKA; JAPAN )

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Abstract Cr-P alloys were deposited from the bath for chormium (Ⅲ) electrodeposition containing NaH2PO2.The effects of some electroplating parameters on P content in the obtained deposits were evaluated. The P content increased with decreasing cathodic current density and with increasing H2PO concentration in the bath. Tile anodic polarization behavior of the deposits in 0.5 mol/L H2SO4 and 1 mol/L HCl was examined. When tile P content exceeded 5 wt%, the deposited alloy exhibited excellent corrosion resistance and the passive current density was only 10-50μA/cm2.

Key words: Electrodeposition Chromium alloy Corrosion resistance

Received: 25 April 1996

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Gao Xuefeng;Zhu Rizhang(Beijing University of Science and Tchnolony)Masamichi Kowaka(C. Uyemuru Industry Co.; Ltd. OSAKA; JAPAN ). ELECTRODEPOSITION OF Cr-P ALLOYS AND THEIR CORROSION ASSISTANCE. J Chin Soc Corr Pro, 1996, 16(2): 145-148.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1996/V16/I2/145

1HashimtoK,KobayashiK,AsamiK,MasumotoT．In:Proc．8thInt．Cong．MetallicCorrosion,DECHEAIA,Frankfurt;1981,1:702GuilingerTR,VoytkoJEIn:ProcAESF’88,LosAngeles;1988．1223降屋久,田边良美．日本金属学会志,1982,46:10424增井宽二．森永浩太郎,丸野重雄,川口健．(日)金属表面技术,1985,36:885BrennerAElectodepositionofalloys,NewYork&London:AcademicPress,1963．11,2576虞觉奇,易文质,陈邦迪,陈宏鉴．二元合金状态图集,上海:上海科技出版社,1987

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