Dispersion strengthened alloy containing in-situ-formed disperso

Details Dispersion strengthened alloy containing in-situ-formed disperso Dispersion strengthened alloy containing in-situ-formed disperso

1992-03-12

1995-11-28

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75236, 75243, 75246, 75343, 419 11, 419 29, 419 49, 419 53, 148514, 148410, B22F 315, C22C 1905

Patent

active

054703719

ABSTRACT:
Articles having improved strength at high temperature are made from near-eutectic nickel-base superalloys. In such alloys, the improved properties are achieved by preventing the formation of a dispersed second phase during the production of alloy powder. After the powder is consolidated, a dispersion of the second phase is developed through thermal treatment. Consolidation may be achieved by direct application of pressure, or by incremental solidification processes. Some of these alloys are formulated to achieve additional strengthening by precipitation hardening.

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