THE EFFECT OF IMPLANTED LANTHANUM ON CHEMICAL DIFFUSION IN CR2O3-SCALES ON CO-40CR ALLOY

被引：19

作者：

GIL, A

MROWEC, S

JEDLINSKI, J

BORCHARDT, G

机构：

[1] TECH UNIV CLAUSTHAL,INST ALLGEMEIN CHIRURG,ROBERT KOCH STR 42,W-3392 CLAUSTHAL ZELLERFE,GERMANY

[2] STANISLAW STASZIC UNIV MIN & MET,INST MAT SCI,PL-30059 KRAKOW,POLAND

来源：

SOLID STATE IONICS | 1992年 / 58卷 / 1-2期

关键词：

D O I：

10.1016/0167-2738(92)90005-A

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A self-diffusion coefficient of chromium in Cr2O3 scale preformed on "pure" and lanthanum implanted Co-40Cr alloy has been estimated as a function of temperature (1473-1573 K) using diffusion-evaporation method developed by Kofstad. It has been found that the rate of chromium self diffusion in the scale on lanthanum-doped material is more than one order of magnitude lower than that in the scale on unmodified substrate. It implies, that reactive element atoms do not block completely the outward diffusion of cations.

引用

页码：13 / 21

页数：9

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