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| The Corrosion Resistance of Fe Cr8 P13 B5 and Fe Cr8 P13 C7 Alloys in Different States |
| Fan Yaotan; Pu Guigen; Liu Tonjun & Yu Lonfei(Shanghai Institute of Metallurgy; The Academy of Sciences of China) |
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Abstract The corrosion resistance of Fe Cr8P13 B5 and FeCr8 P13 C7 alloys in different states have been investigated in the media containing chlorine ions by electrochemical measurement and total immersion test. Experimental results showed that: (1)The amorphotis Fe Cr8 P13 B5 and Fe Cr8 P13 C7 alloys have excellent corrosion resistance. The polarization curves of both amorphous corrosion resistant alloys are much similar measured in 3.5% NaCl at 30℃ by potentio-kinetic method. No breakdown potential(E_b) was observed within the measured region from-1.0 to+1.5 volts(SCE)and their anodic current densities maintain low level,less than 10μA/cm~2;The corrosion rates of both amorphous alloys are lower than 10~(-3)—10~(-4)mm/y in all immersion testing environments such as 3.5%0 NaCl at 60℃, 0.5—2.5N HCl at 30℃, 10% FeCl_3·6H_2O at 40 and 60℃ and 1M H_2S_O4+0.5MNaCl at 30℃. (2) After vacuum annealing treatment at 500℃ for 1 hour, the corrosion resistance of Fe Cr8 P13 C7 alloy dropped abruptly, while that of Fe Cr8 P13 B5 alloy remained as good as in the amorphous state. Electrochemical measurements and immersion test results agree very well.
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Received: 25 February 1981
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Cite this article:
Fan Yaotan; Pu Guigen; Liu Tonjun & Yu Lonfei(Shanghai Institute of Metallurgy; The Academy of Sciences of China). The Corrosion Resistance of Fe Cr8 P13 B5 and Fe Cr8 P13 C7 Alloys in Different States. J Chin Soc Corr Pro, 1981, 1(1): 10-18.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1981/V1/I1/10
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[1] US Pat 3,986,867, Oct 19 (1976)
[2] 奈贺正明、桥本功二、增本健,日本金属学会志,38,835(1974)
[3] M.Naka et al, J.Non-Cryst Solid.,29(1978)
[4] W. Klement et al, Nature, 3 Sep, 187(1960)
[5] H. S. Chen and Co E. Miller, Rev. Sci. Inst., (1970)
[6] 浦桂根、刘同钧、俞龙飞、范耀檀,无定形Fe-Cr-(M)-P-C(B)合金耐蚀性的研究(1979)
[7] 张承典、徐乃欣,《海洋用钢腐蚀研究》,上海科学技术出版社,101-109(1978)
[8] K. Hashimoto and T. Mashumoto, Mat. Sci. Engg., 23, 285-288(1976)
[9] K. Asami et al., Corr. Sci., 16, 909(1976) |
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