Influence of Zircaloy cladding composition on hydride formation during aqueous hydrogen charging

被引：7

作者：

Rajasekhara, S. ^{[1
]}

Kotula, P. G. ^{[2
]}

Enos, D. G. ^{[2
]}

Doyle, B. L. ^{[2
]}

Clark, B. G. ^{[2
]}

机构：

[1] Intel Corp, 2501 NW 229th Ave, Hillsboro, OR 97124 USA

[2] Sandia Natl Labs, POB 5800,MS 0886, Albuquerque, NM 87185 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 2017年 / 489卷

关键词：

Hydride; Zircaloy; ZIRLO; Cladding; Transmission electron microscopy; Elastic recoil detection; ZIRCONIUM HYDRIDE; DRY STORAGE; ALLOYS; PRECIPITATION; DIFFUSION; CORROSION; TRANSFORMATIONS; ORIENTATION; SOLUBILITY; TRANSPORT;

D O I：

10.1016/j.jnucmat.2016.04.055

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Although hydrogen uptake in Zirconium (Zr) based claddings has been a topic of many studies, hydrogen uptake as a function of alloy composition has received little attention. In this work, commercial Zr-based cladding alloys (Zircaloy-2, Zircaloy-4 and ZIRLO (TM)), differing in composition but with similar initial textures, grain sizes, and surface roughness, were aqueously charged with hydrogen for 100, 300, and 1000 s at nominally 90 degrees C to produce hydride layers of varying thicknesses. Transmission electron microscope characterization following aqueous charging showed hydride phase and orientation relationship were identical in all three alloys. However, elastic recoil detection measurements confirmed that surface hydride layers in Zircaloy-2 and Zircaloy-4 were an order of magnitude thicker relative to ZIRLO (TM). (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：222 / 228

页数：7

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