Study of the corrosion resistance of Cr, Zr, Y doped AB5 type alloys in KOH

被引：9

作者：

Arnaud, O

Barbic, P

Bernard, P

Bouvier, A

Knosp, B

Riegel, B

Wohlfahrt-Mehrens, M

机构：

[1] SAFT, Direct Rech, F-33074 Bordeaux, France

[2] Treibacher Auermet, A-9330 Treibach Althofen, Austria

[3] ZSW, D-89081 Ulm, Germany

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2002年 / 330卷

关键词：

AB(5) type alloys; Cr; Zr; Y; corrosion resistance;

D O I：

10.1016/S0925-8388(01)01671-1

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 effect of partial substitutions of Y, Zr or Cr on the chemical stability of AB(5+x) alloys in concentrated KOH aqueous solution was investigated. Alloys were elaborated using conventional casting, rapid cooling or gas atomisation, then heat-treated and characterised in terms of chemical composition, microstructure (MEB, XRD), electrochemical performances and corrosion resistance in a 8.7 M KOH solution at 70degreesC. Single phase alloys were obtained using Y or Cr as additive. Among them, superstoichiometric Cr alloys exhibited improved corrosion resistance during soaking tests. (C) 2002 Elsevier Science BY All rights reserved.

引用

页码：262 / 267

页数：6

共 10 条

[1]

Cocciantelli JM, 1999, J NEW MAT ELECT SYST, V2, P151

[2] The influence of Co and various additives on the performance of MmNi(4.3-x)Mn(0.33)Al(0.4)Co(x) hydrogen storage alloys and Ni/MH prismatic sealed cells [J].