Microstructure and hydride embrittlement of zirconium model alloys containing niobium and tin

被引：7

作者：

Oh, Seung Jin ^{[1
,2
]}

Jang, Changheui ^{[1
]}

Kim, Jun Hwan ^{[3
]}

Jeong, Yong Hwan ^{[3
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Nucl & Quantum Engn, Taejon 305701, South Korea

[2] KHNP, Nucl Engn & Technol Inst, Taejon 305343, South Korea

[3] Korea Atom Energy Res Inst, Taejon 305353, South Korea

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 10-11期

关键词：

Zirconium; Niobium; Tin; Hydride embrittlement; Hydride morphology; TERMINAL SOLID SOLUBILITY; HYDROGEN; NB; PRECIPITATION; TEXTURE; ZR;

D O I：

10.1016/j.msea.2011.01.093

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

To investigate the effects of the addition of Nb and Sn to Zr alloys on hydride embrittlement, experimental alloys with different Nb and Sn contents were prepared and charged with hydrogen up to 850 ppm. When Nb and Sn were added, recrystallization was delayed in Zr alloys, mainly due to beta-Nb precipitates in Nb containing alloys and Sn solute atoms in Sn containing alloys, respectively. Among the two alloying elements. Sn was more effective in delaying recrystallization. Tensile test results showed that both Nb and Sn strengthened the Zr alloys, and tensile strengths were nearly independent of the absorbed hydrogen content. While resistance to hydride embrittlement was significantly improved with Nb addition to Zr alloys due to increased hydrogen solubility and delayed recrystallization, no effect of Sn addition was observed. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：3771 / 3776

页数：6

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