Intermetallics and phase transformations of the Zr-1.0Sn-0.3Nb-0.3Fe-0.1Cr alloy
来源期刊：Rare Metals2008年第5期
论文作者：LIANG Jianlie a, b, c, TANG Yiyuan b, NONG Liangqin b, YAN Jialin a, c, and ZHUANG Yinghong a, c a Key Laboratory of the Ministry of Education of China for Nonferrous Metals and New Processing Technology of Materials, Guangxi University, Nanning , China b School of Physics and Electronic Engineering, Guangxi University for Nationalities, Nanning , China c Institute of Materials Sciences, Guangxi University, Nanning , China
文章页码：468 - 472
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）2Fe, Zr（CrFe）2, and Zr3Fe, were detected by XRD. The cubic Ti2Ni-type （ZrNb）2Fe was found to be the main precipitate in the alloy, and it was proposed to dissolve at 861°C, whereas Zr3Fe dissolved at 780°C and Zr（CrFe）2 at 814°C. No precipitates were observed at a temperature higher than 900°C. The transformation-start temperature of α-Zr →β-Zr was reconfirmed to be 780°C, and the end temperature of α-Zr →β-Zr was determined to be 955°C. The dilation result also revealed that the martensitic transformation-start temperature, Ms, and the finish temperature, Mf, of this alloy were 741°C and 645°C, respectively.
LIANG Jianlie a, b, c, TANG Yiyuan b, NONG Liangqin b, YAN Jialin a, c, and ZHUANG Yinghong a, c a Key Laboratory of the Ministry of Education of China for Nonferrous Metals and New Processing Technology of Materials, Guangxi University, Nanning 530004, China b School of Physics and Electronic Engineering, Guangxi University for Nationalities, Nanning 530006, China c Institute of Materials Sciences, Guangxi University, Nanning 530004, China
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）2Fe, Zr（CrFe）2, and Zr3Fe, were detected by XRD. The cubic Ti2Ni-type （ZrNb）2Fe was found to be the main precipitate in the alloy, and it was proposed to dissolve at 861°C, whereas Zr3Fe dissolved at 780°C and Zr（CrFe）2 at 814°C. No precipitates were observed at a temperature higher than 900°C. The transformation-start temperature of α-Zr →β-Zr was reconfirmed to be 780°C, and the end temperature of α-Zr →β-Zr was determined to be 955°C. The dilation result also revealed that the martensitic transformation-start temperature, Ms, and the finish temperature, Mf, of this alloy were 741°C and 645°C, respectively.
关键词：
