Containing V and Nb, and, Ni3Al based intermetallic compound having two overlapping phase organization, and a method of manufacturing the same, heat-resistant structural materials

摘要

The intermetallic where mechanical quality at high temperature is superior is offered. As for intermetallic of this invention, Al: Being larger than 5at%, below 13at%, V: Above 9.5at% smaller, Nb than 17.5at%: Below 5at% above 0at%, B: 1000 weight ppm or less of 50 weight ppm or more, the remainder consists of Ni excluding the impurity, pro-eutectoid L 12 phase (features that it possesses 2 repetition phase organizations of L1₂ + D 22) eutectoid structure.