RESEARCH ON REFRACTORY SUPERALLOYS IN THE HTM 21 PROJECT
来源期刊：Acta Metallurgica Sinica2005年第1期
论文作者：Y.Yamabe-Mitarai Y.F.Gu H.Harada C.Huang
Key words：platinum group metals; refractory superalloy; microstructure; deformation behavior;
Abstract: It was proposed that a new class of alloys based on platinum group metals (PGMs) were called refractory superalloys.These refractory superalloys have an fcc and LI2 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 superalloys, especial Ir- and Rh-base refractory superalloys were reported.
Y.Yamabe-Mitarai1，Y.F.Gu1，H.Harada1，C.Huang1
(1.High-Temperature Materials Group, National Institute for Materials Science, Sengen 1-2-1,Tsukuba, Ibaraki 305-0047, Japan)
Abstract:It was proposed that a new class of alloys based on platinum group metals (PGMs) were called refractory superalloys.These refractory superalloys have an fcc and LI2 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 superalloys, especial Ir- and Rh-base refractory superalloys were reported.
Key words:platinum group metals; refractory superalloy; microstructure; deformation behavior;
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