Invention Grant
US09322090B2 Components formed by controlling grain size in forged precipitation-strengthened alloys 有权
通过在锻造的沉淀强化合金中控制晶粒尺寸形成的组分

Components formed by controlling grain size in forged precipitation-strengthened alloys
Abstract:
Components and methods of processing such components from precipitation-strengthened alloys so that the components exhibit desirable grain sizes following a supersolvus heat treatment. The method includes consolidating a powder of the alloy to form a billet having an average grain size. The billet is then forged at a temperature below the solvus temperature to form a forging having an average grain size of not coarser than the grain size of the billet. The billet is then forged at a total strain of at least 5%, after which at least a portion of the forging is heat treated at a temperature below the solvus temperature to pin grains within the portion. The entire forging can then be heat treated at a temperature above the solvus temperature of the alloy without coarsening the grains in the portion.
Information query
Patent Agency Ranking
0/0