THE EFFECT OF ALLOYING IN CARBON STEELS AND LOW ALLOY STEELS ON THEIR ATMOSPHERIC CORROSIONRESISTANCE

J Chin Soc Corr Pro

1997, Vol. 17

Issue (2): 87-92 DOI:

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THE EFFECT OF ALLOYING IN CARBON STEELS AND LOW ALLOY STEELS ON THEIR ATMOSPHERIC CORROSIONRESISTANCE

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Abstract Data from 8 years atomspheric exposure of 17 steels at 7 sites in China were analyzed by means of regression. The coefficients A and index n in kinetics formula D = Atn were defined as a linear function of alloy content in the steels. The coefficients of the function were determined by multivariant stepwise linear regression. Effect of alloying elements was quantitatively demonstrated. Significant effect of copper, phosphor and sulphur content in trace amount was observed. The usually assumed good effect of chromium and nickel was not obvious. However, the content of silicon, which was usually thought as of weak effect, displayed a considerably important role, especially in humid hot environment.

Key words: Steel Atmospheric corrosion Regression Alloying element

Received: 25 April 1997

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THE EFFECT OF ALLOYING IN CARBON STEELS AND LOW ALLOY STEELS ON THEIR ATMOSPHERIC CORROSIONRESISTANCE. THE EFFECT OF ALLOYING IN CARBON STEELS AND LOW ALLOY STEELS ON THEIR ATMOSPHERIC CORROSIONRESISTANCE. J Chin Soc Corr Pro, 1997, 17(2): 87-92.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1997/V17/I2/87

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