Inventors:
Adam J. Chafe, Stuart F. Bedford, Kenneth W. Erdmann, James E. MacDonald, Dilip R. Tamhane, Oliver J. Ramsey, Ronald D. Hudas, Charlie Watling, Forrest A. Burney, Bob Bruno, Scott Belliveau
Inventors:
Adam J. Chafe, Stuart F. Bedford, Kenneth W. Erdmann, James E. MacDonald, Dilip R. Tamhane, Oliver J. Ramsey, Ronald D. Hudas, Charlie Watling, Forrest A. Burney, Bob Bruno, Scott Belliveau
Inventors:
Adam J. Chafe, Stuart F. Bedford, Kenneth W. Erdmann, James E. MacDonald, Dilip R. Tamhane, Oliver J. Ramsey, Ronald D. Hudas, Charlie Watling, Forrest A. Burney, Bob Bruno, Scott Belliveau
Abstract: A high speed titanium alloy microstructural conversion method from lamellar to equiaxed is disclosed. The method includes identification and estimation of process parameters such that the average strain rate is between about 1-100 s?1 and the deformation temperature of the material is in the range of about 975°-1010° C.
Type:
Grant
Filed:
November 13, 2002
Date of Patent:
December 2, 2008
Assignee:
The United States of America as represented by the Secretary of the Air Force
Inventors:
Seshacharyulu Tamirisakandala, Prasad VRK Yellapregada, Steven C. Medeiros, William G. Frazier, James C. Malas