Intermetallics and phase transformations of the Zr-1.0Sn-0.3Nb-0.3Fe-0.1Cr alloy

被引：7

作者：

Liang Jianlie ^{[1
,2
,3
]}

Tang Yiyuan ^{[2
]}

Nong Liangqin ^{[2
]}

Yan Jialin ^{[1
,3
]}

Zhuang Yinghong ^{[1
,3
]}

机构：

[1] Guangxi Univ, Key Lab Minist Educ China Nonferrous Met & New Pr, Nanning 530004, Peoples R China

[2] Guangxi Univ Nationalities, Sch Phys & Elect Engn, Nanning 530006, Peoples R China

[3] Guangxi Univ, Inst Mat Sci, Nanning 530004, Peoples R China

来源：

RARE METALS | 2008年 / 27卷 / 05期

关键词：

phase transformation; intermetallics; X-ray diffraction; zirconium-based alloy;

D O I：

10.1016/S1001-0521(08)60164-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Intermetallics and phase transformations of the zirconium-based alloy, Zr-1.0Sn-0.3Nb-0.3Fe-0.1Cr, were investigated by conventional X-ray diffraction (XRD), differential scanning calorimetry (DSC), and dilation measurement. Three types of precipitates, namely, (ZrNb)(2)Fe, Zr(CrFe)(2), and Zr3Fe, were detected by XRD. The cubic Ti2Ni-type (ZrNb)(2)Fe was found to be the main precipitate in the alloy, and it was proposed to dissolve at 861 degrees C, whereas Zr3Fe dissolved at 780 degrees C and Zr(CrFe)(2) at 814 degrees C. No precipitates were observed at a temperature higher than 900 degrees C. The transformation-start temperature of alpha-Zr -> beta-Zr was reconfirmed to be 780 degrees C, and the end temperature of alpha-Zr -> beta-Zr was determined to be 955 degrees C. The dilation result also revealed that the martensitic transformation-start temperature, M-s, and the finish temperature, M-f, of this alloy were 741 degrees C and 645 degrees C, respectively.

引用

页码：468 / 472

页数：5

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