含钒Fe-Ni-Cr合金在H2S-H2-CO2混合气氛中的硫化腐蚀鲜①
来源期刊:中国有色金属学报1996年第4期
论文作者:李陵川 朱日彰
文章页码:147 - 149
关键词:硫化; Fe-Ni-Cr合金; 腐蚀
Key words:sulfidation; Fe-Ni-Cr alloy; corrosion
摘 要:含钒Fe-Ni-Cr合金在0.4%H2S-H2-7%CO2和1%H2S-H2-7%CO2气氛中于600℃下的腐蚀产物包括外层疏松多孔、呈粉状的(Ni,Fe)S,其下致密的FeCr2S4和里层的Cr3S4。1%H2S气体中腐蚀,FeCr2S4的上部还有(Fe, Ni) S块的形成。钒与镍富集于FeCr2S4/Cr3S4交界处。
Abstract: The scales of Fe-Ni-Cr alloy containing V formed in the gas mixtures of 1%H2S-H2-7%CO2 and 0.4% H2S-H2-7%CO2 consisted of the extremely porous outer (Ni, Fe)S layer, the middle FeCr2S4 layer and the inner Cr3S4 layer. Patches of (Fe, Ni)S also formed at the outer area of the middle FeCr2S4 layer in higher concentration H2S gas. V and Ni enriched at the boundary between FeCr2S4 and Cr3S4.