Influence of Pt, Fe/Ni/Cr-containing intermetallics and deuterium on the oxidation of Zr-based materials

被引：10
作者：
Anghel, C
Hultquist, G
Limbäck, M
机构：
[1] Royal Inst Technol, Div Corros Sci, Dept Mat Sci & Engn, S-10044 Stockholm, Sweden
[2] Westinghouse Elect Sweden AB, S-72163 Vasteras, Sweden
来源：
JOURNAL OF NUCLEAR MATERIALS | 2005年 / 340卷 / 2-3期
关键词：
D O I：
10.1016/j.jnucmat.2004.12.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An in situ gas phase analysis technique and the O-18-SIMS technique are used to evaluate the transport of oxygen and hydrogen in oxidation of Zr-based materials. At 400 degrees C, it is found that oxygen dissociation efficiency decreases in the order: Pt > Zr2Fe > Zr2Ni > ZrCr2 > Zircaloy-2. Two Zr-plates partly coated with 200 angstrom porous Pt, with and respectively without D in the substrate, were oxidized in two stages at 400 degrees C. SIMS depth profiles in the Pt area show that an enhanced oxidation takes place mainly by inward oxygen transport. A minimum in the oxide thickness was found near the Pt area on both Zr plates. Two Ar-filled Zircaloy-2 tubes with ZrSn liner were exposed at 370 degrees C to 22 mbar water, filled in from one side. Our experimental results suggest that a proper choice of the SPP composition and size distribution can lead to reduced hydrogen uptake during oxidation of Zr-based materials in water. (c) 2005 Elsevier B.V. All rights reserved.
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页码：271 / 283
页数：13
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