Acta Metallurgica Sinica (English Letters) ›› 2005, Vol. 18 ›› Issue (1): 74-80 .

• Research Articles • Previous Articles     Next Articles

RESEARCH ON REFRACTORY SUPERALLOYS IN THE HTM 21 PROJECT

Y.F.Gu, Y.Yamabe-Mitarai, C.Huang, H.Harada   

  1. High-Temperature Materials Group,National Institute for Materials Science,Sengen1-2-1,Tsukuba,Ibaraki305-0047,Japan
  • Received:1900-01-01 Revised:1900-01-01 Online:2005-02-25 Published:2009-10-10
  • Contact: Y.F.Gu

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