| Abstract: | The phase diagram for the Cr−Re system has been derived from published data in conjunction with measurements on alloys cast
and annealed at subsolidus temperatures (XRD, metallography, microprobe analysis, and measurement of the temperature for the
onset of melting by the Pirani—Alterthum method). The phase equilibria at solidus temperatures have been determined from studies
on alloys annealed at those temperatures. Phase homogeneity regions on the solidus have been identified: for (Cr) up to 43
at.% Re, for the σ phase −50–72 at.%Re, and for (Re) up to 17 at.%Cr; temperatures have also been determined for the invariant
equilibria L+σ ⇆ (Cr) at 2150±15°C and L+(Re)⇆σ at 2335±15°C.
Institute for Problems of Materials Science, Ukraine National Academy of Sciences, Kiev. Translated from Poroshkovaya Metallurgiya,
Nos. 3–4(406), pp. 65–71, March–April, 1999. |
