α(α₂)/γ PHASE EQUILIBRIA IN Ti-Al-C AND Ti-Al-B TERNARY SYSTEMS

来源期刊：中国有色金属学报(英文版)1997年第2期

论文作者：Li Juntao Hao Shiming

文章页码：64 - 67

Key words：Ti Al X(X=C; B) ternary system; partially vertical section; α(α₂)/γphase equilibrium

Abstract: The α(α₂)/γ phases equilibria in Ti Al X(X=C, B) ternary system at low C and B concentrations was measured by EPMA and examined with thermodynamic analysis. The results show that the addition of C in Ti Al binary system results in the (α(α₂)+γ)/γ boundary shifting to Al rich side, whereas the α(α₂)/(α(α₂)+γ) boundary shifting little, and that the addition of B results in both of α(α₂)/(α(α₂)+γ) and (α(α₂)+γ)/γ bountaries shifting to Al rich side. The solubilities for C and B in α(α₂) phase are larger then those in γ phase therefore C and B are αphase forming elements in Ti Al binary system.