Influence of Hydrogen on the Properties of Oxidized and Nitrided Zr-1% Nb Alloy

被引：1

作者：

Trush, V. S. ^{[1
]}

Stoev, P., I ^{[2
]}

Fedirko, V. N. ^{[1
]}

Voyevodin, V. N. ^{[2
]}

Tykhonovskyi, M. A. ^{[2
]}

Panov, V. A. ^{[2
]}

Lukyanenko, A. G. ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Karpenko Physicomech Inst, Lvov, Ukraine

[2] Natl Acad Sci Ukraine, Kharkiv Inst Phys & Technol, Inst Solid State Phys Mat Sci & Technol, Kharkiv, Ukraine

来源：

MATERIALS SCIENCE | 2022年 / 57卷 / 04期

关键词：

zirconium alloy; hydrogen; thermochemical treatment; oxygen-and-nitrogen-containing medium; near-surface layer; mechanical properties;

D O I：

10.1007/s11003-022-00573-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We analyze the influence of saturation with hydrogen on the physicomechanical characteristics of oxidized and nitrided annular specimens cut out from the fuel tubes made of Zr-1% Nb alloy. It is shown that the hardened near-surface layer formed in controlled (oxygen- and nitrogen-containing) gas media affects their long-term strength in the course of holding in air for 100 h. The specimens preliminarily oxidized and nitrided and then saturated with hydrogen fail in the course of holding in air at room temperature under stresses of 490-510 MPa. This stress range is ten times narrower than for the nonhydrogenated annular specimens destroyed under stresses of 400-600 MPa. We study the character of their fracture for different modes of treatment.

引用

页码：520 / 526

页数：7

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