Zr-Sn-Nb-Fe系锆合金中第二相粒子研究进展

Research Progress of Second Phase Particles on Zr-Sn-Nb-Fe Zirconium Alloys

本文归纳了近些年国内外关于Zr-Sn-Nb-Fe系锆合金第二相方面的一些重要研究结果,总结了Sn,Nb,Fe等合金元素对Zr-Sn-Nb-Fe系锆合金中第二相特征(晶体结构、成分、尺寸、分布等)的影响规律,分析了第二相在加工热处理过程中的析出及演变机制,并指出如何改善第二相类型、尺寸、分布等的一些措施。

The present paper summarized abundant crucial results about the second phase particles （SPPs） for Zr-Sn-Nb-Fe zirconium alloy in the recent years, and systematically analyzed the influence of alloy elements （Sn, Nb, Fe, etc. ） on the intrinsic characteristics （crystallographic structure, microchemistries, size, distribution, etc. ） of SPPs. The precipitation and evolution mechanism of SPPs were analyzed during the processing and thermal treatment process. In addition, some measures to improve the type, size and distribution of SPPs were presented in the paper.