GRAIN BOUNDARY DIFFUSION EFFECT ON Ti3Al ALLOY OXIDATION

被引：2
|
作者：
Chepak-Gizbrekht, M. V. [1 ]
Knyazeva, A. G. [1 ]
机构：
[1] Russian Acad Sci, Inst Strength Phys & Mat Sci, Siberian Branch, Tomsk, Russia
来源：
RUSSIAN PHYSICS JOURNAL | 2022年 / 65卷 / 07期
关键词：
grain boundary diffusion; intermetallic alloy; oxidation; modeling; BEHAVIOR; TITANIUM; MODEL;
D O I：
10.1007/s11182-022-02741-y
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The paper presents a model of grain boundary diffusion supplemented by kinetic equations of oxide formation under isothermal conditions. In the proposed model, the alloy material represents the alternation of intermetallic grains and grain-boundary triple junctions. Diffusion and kinetic properties of grains and grain boundaries are different. The model is used to describe the intermetallic alloy oxidation in the bulk and along grain boundaries. The concentration distribution of elements and oxides changes in the average integral concentration of oxides are investigated in varying the reaction rate constants in grains and at the grain boundaries.
引用
收藏
页码：1130 / 1137
页数：8
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