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| INFLUENCE OF ALLOYING ELEMENTS (Cr, Ni, Al, Y) ON HIGH TEMPERATURE SULFIDATION OF FeGrNi BASE ALLOYS |
| Huang Yuanwei Sun Lanxiang Xu Zhiqiang Han Yong and Shi Shengtai (Shanghai Institute of Metallurgy; Academia Sinica) |
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Abstract High temperature sulfidation of FeCrNi base alloys containing different contents of Cr,Ni,Al, Y was studied in sulfur vapor under 600℃C with Ps_2=64×10~2Pa,Po_2=0.53×10~(-2)pa. Sulfidation kenetics of studied materials have been examined and compared. The structure and morphological features of sulfide scales have been investigated using metallographical, X-ray diffraction and EMPA techniques. The addition of Cr was shown to be beneficial in reducing corrosion rate. Increase in addition of Ni was shown to be detrimental. The beneficial effect of Al, Y minor additions on the sulfidation restistance was distinguished. Based on analyses of the structure and composition of sulfide scales,the sulfidation mechanisms of the alloys with different additions have been proposed.
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Received: 25 June 1991
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Cite this article:
Huang Yuanwei Sun Lanxiang Xu Zhiqiang Han Yong and Shi Shengtai (Shanghai Institute of Metallurgy; Academia Sinica). INFLUENCE OF ALLOYING ELEMENTS (Cr, Ni, Al, Y) ON HIGH TEMPERATURE SULFIDATION OF FeGrNi BASE ALLOYS. J Chin Soc Corr Pro, 1991, 11(3): 255-262.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1991/V11/I3/255
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