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| EFFECT OF Ti ON THE MICROSTRUCTURE AND ELECTROCHEMICAL PROPERTIES OF Zr-Mn-V-Ni ALLOYS |
| SONG Xueyan; LEI Yongquan; ZHANG Xiaobin; ZHANG Ze; CHEN Lixin; YANG Xiaoguang; LU Guanglie; ZHANG Wenkui; WANG Qidong (Department of Materials Science and Engineering; Zhejiang University ; Hangzhou; 310027)(Beijing Laboratory of Electron Microscopy; Center for Condensed Matter Physics; The Chinese Academy of Sciences; P. O. Box 2724; Beijing 100080)(Centeral Laboratory of Hangzhou University; Hangzhou 310028)Correspondent: SONG Xueyan; Tel. (0571) 7951406; Fax: (0571)7951152;E-mail: msecheny@dial. zju. edu. cn |
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Cite this article:
SONG Xueyan; LEI Yongquan; ZHANG Xiaobin; ZHANG Ze; CHEN Lixin; YANG Xiaoguang; LU Guanglie; ZHANG Wenkui; WANG Qidong (Department of Materials Science and Engineering; Zhejiang University ; Hangzhou; 310027)(Beijing Laboratory of Electron Microscopy; Center for Condensed Matter Physics; The Chinese Academy of Sciences; P. O. Box 2724; Beijing 100080)(Centeral Laboratory of Hangzhou University; Hangzhou 310028)Correspondent: SONG Xueyan; Tel. (0571) 7951406; Fax: (0571)7951152;E-mail: msecheny@dial. zju. edu. cn. EFFECT OF Ti ON THE MICROSTRUCTURE AND ELECTROCHEMICAL PROPERTIES OF Zr-Mn-V-Ni ALLOYS. Acta Metall Sin, 1998, 34(9): 977-982.
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Abstract The Zr-Ni intermetallic compounds coexist with Laves phase in the Zr-Mn-V-Ni alloy. Zr0.5Ti0.5Mn0.2Vo.6Ni1.2 alloy accommodates C14 Laves phase and Ti containing bcc phase. Selected area electron diffraction (SAED) and energy dispersive spectrum (EDS) analysis show the bcc phase was B2 type R phase (Ti0.8Zr0.2)Ni. The lattice parameters and substructure of Laves phase in ZrMn0.2V0.6Ni1.2 alloy varied after Ti substitution for Zr. Formation of non-Laves phases causes the alloying elements redistribution among the coexisting phases. The change of electrochemical properties of Zr0.5Ti0.5Mn0.2V0.6Ni1.2 can be attributed to the Ti substitution for Zr site in C14 laves phase, the formation of (Ti0.8Zr8.2)Ni phase and disappearance of Zr-Ni binarg compound.
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Received: 18 September 1998
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