INFLUENCE OF B ON H_2S CORROSION-RESISTANCE OF Fe-BASE AMORPHOUS ALLOY

Acta Metall Sin

1989, Vol. 25

Issue (2): 146-148 DOI:

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INFLUENCE OF B ON H_2S CORROSION-RESISTANCE OF Fe-BASE AMORPHOUS ALLOY

HU Hanqi;YANG Zhongshou University of Science and Technology Beijing

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HU Hanqi;YANG Zhongshou University of Science and Technology Beijing. INFLUENCE OF B ON H_2S CORROSION-RESISTANCE OF Fe-BASE AMORPHOUS ALLOY. Acta Metall Sin, 1989, 25(2): 146-148.

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Abstract A great improviment on the corrosion resistance of Fe-Cr-P-C amorphous alloy bysubstituting boron for carbon can be made especially in an acid solution saturated with H_2S. Itwas confirmed by XPS analysis that the boron enriches in surface layer of the amorphous alloyand reacts with hydrogen to form B_(10)H_(14). Thus, the hydrogen intrusion into substrate may beprevented and the suscptibility of the amorphous alloy to hydrogeninduced destruction may begreatly decreased.

Key words: Fe-base amorphous alloy resistance to H_2S corrosion boron

Received: 18 February 1989

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