Low carbon directional solidification alloy

Details Low carbon directional solidification alloy Low carbon directional solidification alloy

1989-08-14

1991-12-03

Andrews, Melvyn J.

Alloys or metallic compositions

Nickel base

Chromium containing

148404, 148410, 148428, C22C 1905, C22F 300

Patent

active

050698737

ABSTRACT:
A nickel base superalloy for columnar grain, directional solidification which contains Re for strength and creep resistance, and substantially eliminates the use of Zr and minimizes Si to prevent DS grain boundary cracking. The creep- and stress-rupture properties, which approach nickel base superalloy single crystal performance, are achieved without the use of high temperature gamma prime solution treatment.

REFERENCES:
patent: 4589937 (1986-05-01), Jackson et al.

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