Single crystal seed
AssigneeHowmet Research Corporation
InventorsSteven T. Schaadt, Brad J. Murphy, Lisa K. Koivisto
Life of this patent
Estimating the term…
Abstract
A single crystal seed for use in casting a single crystal article, consisting essentially of, in weight %, about 5.0% to about 40.0% Mo, up to 0.1% C and balance essentially Ni.
Claims8
(canceled)
A seed for casting a single crystal article, consisting essentially of, in weight %, greater than 15.0% to about 40.0% Mo, up to 0.1% C and/or B and balance essentially Ni and having hardening precipitates of Mo and Ni in the seed.
A single crystal casting mold, comprising a grain starter cavity connected to an article mold cavity by a connector passage and a seed in said starter cavity, said seed consisting essentially of, in weight %, greater than 15% to about 40.0% Mo, up to 0.1% C and balance selected from the group consisting of Ni and Co wherein the seed has hardening precipitates of Mo and Ni therein.
Dependencies are inferred from the claim text.