Interaction of Lantanum and Cerium with Oxygen and Sulfur in Nickel Melts at PAr=0.1 MPa

被引：0
|
作者：
Burtsev, V. T. [1 ]
Chabina, E. B. [2 ]
Sidorov, V. V. [2 ]
机构：
[1] Russian Acad Sci IMET RAS, Baikov Inst Met & Mat Sci, Moscow 119334, Russia
[2] All Russian Sci Res Inst Aviat Mat VIAM, Moscow 105005, Russia
来源：
INORGANIC MATERIALS-APPLIED RESEARCH | 2021年 / 12卷 / 03期
基金：
俄罗斯基础研究基金会;
关键词：
nickel-oxygen-sulfur melts; lanthanum; cerium; oxygen activity; EMF method; nonmetallic inclusions;
D O I：
10.1134/S2075113321030059
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The method of instant EMF fixation has been used to determine the activity of oxygen in model Ni melts containing up to 0.001-0.20 wt % La and Ce. It is shown that, at P-Ar = 0.1 MPa and 1560 degrees C, when cerium is introduced into the melt, the oxygen activity is 4.7 times lower than when deoxidizing with lanthanum. SEM investigation shows that the composition of nonmetallic inclusions in molten Ni deoxidized by La and Ce indicates a stronger bonding of Ce with oxygen than with La and a stronger bonding of La with sulfur than with Ce.
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页码：836 / 841
页数：6
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