Abstract
The Au-Sn phase diagram in [Massalski2] was modified by [1993Oka] around the b and f phase fields. These phases were shown in [Massalski2] to decompose eutectoidally at low temperatures, but [1993Ciu] showed that they do not decompose at least down to 200 C. Therefore, the low-temperature ends of the b and f phases were not shown in [1993Oka]. Figure 1 shows the Au-Sn phase diagram calculated by [2003Liu]. According to this phase diagram, f0 phase is also unstable at temperatures below )67 C. Although this phase diagram does not conflict with earlier reports, the eutectoidal decomposition temperatures of b , f , and f0 phases must be confirmed experimentally. References
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