INTERNAL OXIDATION OF TERNARY ALLOYS .2. KINETICS IN THE PRESENCE OF AN EXTERNAL SCALE

被引:20
作者
GUAN, SW
YI, HC
SMELTZER, WW
机构
[1] MCMASTER UNIV,INST MAT RES,HAMILTON L8S 4M1,ONTARIO,CANADA
[2] MCMASTER UNIV,DEPT MAT SCI & ENGN,HAMILTON L8S 4M1,ONTARIO,CANADA
来源
OXIDATION OF METALS | 1994年 / 41卷 / 5-6期
关键词
INTERNAL OXIDATION; EXTERNAL OXIDATION; DILUTE TERNARY ALLOYS; NI-AL-SI;
D O I
10.1007/BF01113373
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
Classic kinetics equations of internal oxidation of binary alloys associated with the formation of an external oxide scale of the base metal have been simplified by applying mathematical asymptotical analysis. An analysis for the case of ternary alloys is also presented The analysis involves simultaneous internal oxidation of the two solutes in the ternary alloys below the external oxide scale of the base metal. The kinetics equations derived are applied to calculate depths of internal oxidation zones of Ni-4 at.% Al-1 at.% Si alloys oxidized in 760 torr of oxygen at 800-degrees-C.
引用
收藏
页码:389 / 400
页数:12
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