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公开(公告)号：CA1073324A
公开(公告)日：1980-03-11
申请号：CA260314
申请日：1976-09-01
Applicant: UNITED TECHNOLOGIES CORP
Inventor： ALLEN MARVIN M , MILLER JOHN A , WOODINGS BRUCE E
IPC: C22F1/10
Abstract: A thermomechanical treatment for producing useful microstructures in the nickel base superalloys is described. The process is applied to material which has been placed in a condition of super-plasticity, and utilizes isothermal hot deformation under conditions which produce a uniform dislocation density and a resultant propensity for abnormal grain growth. The material is then recrystallized in a thermal gradient to produce a final structure consisting of elongated grains.
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