HYDROGEN SORPTION PECULIARITIES IN FETI-TYPE TI-FE-V-MN ALLOYS

被引：32

作者：

MITROKHIN, SV ^{[1
]}

VERBETSKY, VN ^{[1
]}

KAJUMOV, RR ^{[1
]}

HONG, CM ^{[1
]}

ZHANG, YF ^{[1
]}

机构：

[1] BEIJING UNIV,DEPT CHEM,BEIJING 100871,PEOPLES R CHINA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1993年 / 199卷 / 1-2期

关键词：

14;

D O I：

10.1016/0925-8388(93)90443-Q

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：

The interaction of hydrogen with FeTi-based alloys of the Ti-Fe-V-Mn system was investigated using P-C isotherms, energy dispersive X-ray analysis (EDXA) and Auger electron spectroscopy (AES). In narrow concentration ranges of both vanadium and manganese, the beta- and gamma-hydride decomposition pressure values approach each other and the corresponding plateaux transform into one sloping plateau on the desorption isotherm. We call this phenomenon the ''pressure smoothing effect''. The alloying of FeTi with vanadium and manganese does not lead to considerable changes in the resistance of the alloys to contamination. The presence of vanadium and especially manganese changes the surface properties and influences the activation mechanism of hydrogen absorption.

引用

页码：155 / 160

页数：6

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