FORMATION OF TRANSITION PHASES ON INTERFACE BETWEEN MONOCRYSTALLINE Fe AND Cu DUE TO MUTUAL SOLID-STATE DIFFUSION

被引：5

作者：

Perek-Nowak, M. ^{[1
]}

Boczkal, G. ^{[1
]}

机构：

[1] AGH Univ Sci & Technol, Fac Nonferrous Met, Al Mickiewicza 30, PL-30065 Krakow, Poland

来源：

ARCHIVES OF METALLURGY AND MATERIALS | 2016年 / 61卷 / 02期

关键词：

copper single crystal; iron single crystal; transition phases; solid-state diffusion; IRON; COPPER; SOLUBILITY;

D O I：

10.1515/amm-2016-0099

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Interdiffusion between Fe (Armco) and Cu single crystals of similar orientation (around [110]) annealed at temperatures of 873 and 973K in air for 0.5 up to 4 h is studied. Formation of three phases different in their chemical composition has been observed: 1) oxide layer on Cu border (porous), 2) a layer rich in copper, iron and oxygen, 3) a layer of iron and oxygen with only small addition of Cu. All reactions of interface formation occurred in solid state. It was noted that oxygen plays an important role in development of new phases. Strong Kirkendall effect is observed due to large difference in diffusion coefficients of copper atoms to iron, D-Cu -> Fe= 300exp(-67800/RT) and iron atoms to copper D-Cu -> Fe= 0.091exp(-46140/RT).

引用

页码：581 / 585

页数：5