Determination of isothermal sections of Ni-Cr-Nb ternary system
来源期刊：中国有色金属学报(英文版)2004年第5期
论文作者：王日初 冯艳 金展鹏 黄伯云
文章页码：870 - 874
Key words：Ni-Cr-Nb ternary system; diffusion triple; isothermal section
Abstract: The isothermal sections of Ni-Cr-Nb ternary system at 1 323 K and 1 423 K were determined by means of diffusion triple and energy spectrum analysis (ESA). By analyzing the diffusion layers in the diffusion couples, the compounds forming in this system were identified. There are three similar compounds found at these two temperatures: Ni3Nb, NiNb and NbCr2-R, and four similar three-phase regions are found: (Ni)+(Cr)+Ni3Nb, Ni3Nb+NbCr2-R+NiNb, NbCr2-R+(Cr)+Ni3Nb, NbCr2-R+NiNb+(Nb). The results show that no phase transformation happens between these tow temperatures. But the solid solubilities of the binary compounds at 1 423 K become bigger than those at 1 323 K, especially the solid solubility of NbCr2-R. No ternary compound is observed.
