黄元伟
,
韩勇
,
孙兰祥
,
徐之强
,
石声泰
金属学报
研究了稀土元素Y,Ce和La对Fe-25Cr-40Ni合金高温硫化的影响。当合金中稀土含量为0.1wt-％时,合金的硫化速度明显降低。Y对降低合金硫化速度的影响大于Ce和La。加入Y的合金硫化时,在硫化内层优先形成带有保护性的较致密的硫化铬,它的晶粒较细,与基体很好粘着。在硫化层结构和成分分析的基础上提出了合金加入稀土元素后的硫化机理。
关键词:
硫化
,
rare-earth
,
sulfide scale
,
sulfidation rate
HUANG Yuanwei HAN Yong SUN Lanxiang XU Zhiqiang SHI Shengtai(S.T.Shih) Shanghai Institute of Metallurgy
,
Academia Sinica
,
Shanghai
,
China HUANG Yuanwei
,
Associate Professor
,
Shanghai Institute of Metallurgy
,
Academia Sinica
,
865 Changning Road
,
Shanghai
,
China
金属学报(英文版)
The effects of Y,Ce and La on the sulfidation of alloy Fe-25Cr-40Ni have been investigated. The sulfidation rate of the alloys with RE more than 0.1 wt-% is lower than that of the base alloy.The addition of Y is more effective than La and Ce in lowering the sulfidation rate. Based on the analyses of the structure and composition of the sulfide seales,the sulfidation mechanism of the alloys with RE has been proposed.
关键词:
sulfidation
,
null
,
null
,
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