The existing form of Nb in Zr-Sn-Nb-Fe alloys and its dependence on intermediate annealing

被引：0

作者：

Li, ZK ^{[1
]}

Zhou, LA

Zhang, HJ

Wang, WS

Jin, ZH

机构：

[1] NW Inst Nonferrous Metal Res, Xian 710016, Peoples R China

[2] Xian Jiaotong Univ, Xian 710049, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2004年 / 33卷 / 12期

关键词：

zirconium-base alloy; precipitate; solubility; intermediate annealing;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The existing form of alloying element Nb in two kinds of Zr-Sn-Nb-Fe alloys and its dependence on intermediate annealing were qualitatively investigated by means of WD in SEM. It is showed that most parts of Nb in the alloys exits in precipitate, and the content of Nb in precipitate increases with the increase of intermediate annealing temperature, while the content of Nb in alpha-Zr matrix decreases with the increase of intermediate annealing temperature, the solubility of Nb in matrix can be lowered to less than 1 x 10(-4), this phenomenon is different from binary Zr-Nb alloy. It suggests that Nb precedently diffuses to precipitate and exist in the precipitate when it added in zirconium alloys together with Fe or Cr, which results in abnormal change of solubility of Nb in alpha-Zr matrix.

引用

页码：1362 / 1364

页数：3

共 7 条

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