CORROSIVE WEAR BEHAVIOR OF COPPER ALLOYS IN3.5%NaCl+S~(2-) SOLUTIONS

J Chin Soc Corr Pro

1997, Vol. 17

Issue (2): 81-86 DOI:

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CORROSIVE WEAR BEHAVIOR OF COPPER ALLOYS IN3.5%NaCl+S~(2-) SOLUTIONS

WANG Jihui JIANG Xiaoxia LI Shizhou (Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110015)

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Abstract The corrosion rate, corrosive were rate and polarization curves of aluminium brass and cupronickel alloy were determined in 3.5%NaCl and 3.5% NaCl+S2- solutions. The wear tracks of copper alloys were observed by SEM. The specific energy of the surface layer after corrosion was also measured by single pendulum scratching test. Experimental results showed that the addition of sulfide to 3.5%NaCl solution accelerated the corrosion and corrosive wear of copper alloy, shifted the corrosion potential towards negative, and increased the corrosion current density. The acceleration of corrosive wear could be attributed to the surface embrittlement induced by sulfide.

Key words: Copper alloy Corrosive wear Sulfide

Received: 25 April 1997

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WANG Jihui JIANG Xiaoxia LI Shizhou (Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110015). CORROSIVE WEAR BEHAVIOR OF COPPER ALLOYS IN3.5%NaCl+S~(2-) SOLUTIONS. J Chin Soc Corr Pro, 1997, 17(2): 81-86.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1997/V17/I2/81

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