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刘兴军,邓育灵,张锦彬,杨木金,杨水源,韩佳甲,卢勇,王翠萍.Ni-Co-Sn三元系相平衡的实验研究[J].稀有金属材料与工程(英文),2020,49(5):1539~1545.[Liu Xingjun,Deng Yuling,Zhang Jinbin,Yang Mujin,Yang Shuiyuan,Han Jiajia,Lu Yong and wangcuiping.Experimental Investigation of the Phase Equilibria in the Ni-Co-Sn Ternary System[J].Rare Metal Materials and Engineering,2020,49(5):1539~1545.]
Experimental Investigation of the Phase Equilibria in the Ni-Co-Sn Ternary System
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Received:December 21, 2018  Revised:January 13, 2019
DOI:
Key words: Ni-Co-Sn ternary system  phase diagram  linear compound
Foundation item:国家自然科学基金项目(面上项目,重点项目,重大项目);国家自然科学基金促进海峡两岸科技合作联合基金
Author NameAffiliation
Liu Xingjun,Deng Yuling,Zhang Jinbin,Yang Mujin,Yang Shuiyuan,Han Jiajia,Lu Yong and wangcuiping  
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Abstract:
      Phase equilibria of the Ni-Co-Sn ternary system at 700 °C and 1000 °C were experimentally determined by using electron probe microanalyzer and X-ray diffraction. No ternary compound was found at 700 °C and 1000 °C. There was an extensive region of mutual solubility existing between βCo3Sn2 phase and Ni3Sn2(h) phase. Three Ni-Sn binary compounds [Ni3Sn(l), Ni3Sn(h) and Ni3Sn4] showed absolutely different solubilities for the element Co. The maximum solubility of Co in Ni3Sn(l) and Ni3Sn4 phases at 700°C were 6.9 at.% and 25.6 at.%, and the solubility of Ni3Sn(h) phases changed into 15.5 at.% at 1000°C. The Ni-Co side presented an interconnected (αCo, Ni) phase region at both 700oC and 1000°C and its homogeneity range for Sn was from 1 at.% to 10.5 at.%. The solubility of Ni in the linear compound CoSn phase was about 15.9 at.%.