RESEARCH ON REFRACTORY SUPERALLOYS IN THE HTM 21 PROJECT

Abstract

Abstract: It was proposed that a new class of alloys based on platinum group metals (PGMs) were calle drefractory superalloys. These refractory superalloys have an fcc and L12 coherent two-phase structure (similar to that of Ni-based superalloys), high melting temperatures and good potential as structural materials used at temperatures up to 1800℃. Our recent results on the microstructure evolution, deformation and fracture behavior of some of these refracotry superaUoys, especial lr- and Rh-base refractory superalloys were reported.

Key words: platinum group metals, refractory superalloy, microstructure

Y.F.Gu, Y.Yamabe-Mitarai, C.Huang, H.Harada. RESEARCH ON REFRACTORY SUPERALLOYS IN THE HTM 21 PROJECT[J]. Acta Metallurgica Sinica (English Letters), 2005, 18(1): 74-80 .

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