Environmental stability of Zr-based glass-matrix composites

被引：0
|
作者：
Gebert, A [1 ]
Kühn, U [1 ]
Kündig, AA [1 ]
Radtke, N [1 ]
Schultz, L [1 ]
机构：
[1] IFW Dresden, Leibniz Inst Solid State & Mat Res, Inst Met Mat, D-01171 Dresden, Germany
来源：
Metastable, Mechanically Alloyed and Nanocrystalline Materials | 2005年 / 24-25卷
关键词：
Zr-based alloys; metallic glasses; composites; corrosion; pitting;
D O I：
10.4028/www.scientific.net/JMNM.24-25.387
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The corrosion behavior of composite alloys, i.e. the Zr66.4Nb6.4CU10.5Ni8.7Al8 alloy with glassy matrix and dendrite bcc-type phase and the two-phase glassy Zr27.5La27.5Al25Cu10Ni10 alloy with La- and Zr- based phases, was fundamentally studied in phthalate buffer, sulphuric acid and neutral and acidic chloride solutions. For both alloys, the passivation and pitting behavior was found to be governed mainly by their phase composition and not by structural factors. Localized corrosion processes were always initiated at the sharp interfaces between the two phases.
引用
收藏
页码：387 / 390
页数：4
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