SELECTIVE SULFIDATION OF FE-CR ALLOYS

被引：4

作者：

CIESLAK, J ^{[1
]}

DUBIEL, SM ^{[1
]}

机构：

[1] UNIV MIN & MET KRAKOW,FAC PHYS & NUCL TECHNIQUES,AL MICKIEWICZA 30,PL-30059 KRAKOW,POLAND

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1993年 / 198卷 / 1-2期

关键词：

D O I：

10.1016/0925-8388(93)90133-8

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：

Using Fe-57 Mossbauer spectroscopy, the influence of sulphidation on the metallic phase in a series of Fe100-xCrx alloys (x less-than-or-equal-to 45.5) is studied. For samples treated at 1073 K for 1.5 h in an H-2-H2S atmosphere, the partial pressure of sulphur being 10(-3) Pa, the sulphidation turned out to be selective. For x less-than-or-equal-to 4.3 at.% the metallic phase became enriched in chromium, while for x > 4.3 at.% it became enriched in iron, indicating that at this critical composition there is a change in the sulphidation preference.

引用

页码：L11 / L13

页数：3