摘要
对国内外关于Zr-Sn-Nb-Fe系新锆合金中第二相粒子的研究情况进行评述,并重点探讨不同种类Zr-Nb-Fe析出相的成分、晶体结构及其形成机制和条件。合金中的Zr-Nb-Fe析出相有两种:一种为六方结构的MgZn2型Zr(Nb,Fe)2Laves相,其形成与合金中作为杂质存在的Cr元素有关;另一种为立方结构的Ti2Ni型(Zr,Nb)2Fe相,与合金中普遍含有的O元素有关。对大量不同成分的Zr-Sn-Nb-Fe系合金的检测证实,可以用一个由合金中Nb和Fe含量确定的R*参数来分析其成分变化时合金中可能出现的析出相类型。
The investigations of the second phase particles （SPPs） in Zr-Sn-Nb-Fe new zirconium alloys at home and abroad were reviewed, paying close attention to the composition, crystallographic structure and formation mechanism and condition of various Zr-Nb-Fe SPPs. There are two types of Zr-Nb-Fe SPPs： one is C14 （HCP, MgZn2） Zr（Nb, Fe）2 whose formation relates to the impurity element of Cr, and the other is C15 （FCC, Ti2Ni） （Zr, Nb）2Fe particle for which oxygen plays a very important role. The examination to large mounts of Zr-Sn-Nb-Fe alloys with various compositions testifies that a parameter, R＊, which is determined by Nb and Fe contents, can be successfully used to deduce which types of SPPs will mainly present when changing alloy compositions.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2012年第6期1605-1615,共11页
The Chinese Journal of Nonferrous Metals
基金
中央高校基本科研业务费专项资金资助(CDJZR10130008
CDJXS10132201)
教育部新世纪优秀人才支持计划资助(NCET-08-0606)
