Patents by Inventor Radhakrishna B. Bhat

Radhakrishna B. Bhat has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • TITANIUM ALLOY MICROSTRUCTURAL REFINEMENT METHOD AND HIGH TEMPERATURE-HIGH STRAIN RATE SUPERPLASTIC FORMING OF TITANIUM ALLOYS
    Publication number: 20120180913
    Abstract: A method for refining the microstructure of titanium alloys in a single thermomechanical processing step, wherein the titanium alloy comprises boron. In some embodiments, the method comprises the steps of first adding boron to the titanium alloy then subjecting the boron-containing titanium alloy to a thermomechanical processing step. Also provided is a method for achieving superplasticity in titanium alloys comprising the steps of selecting a boron-containing titanium alloy, determining the temperature and strain rate necessary to achieve beta superplasticity, and applying sufficient temperature and strain rate to the boron-containing titanium alloy to deform the alloy to the desired shape. Also provided methods of forming titanium alloy parts and the parts prepared by these methods.
    Type: Application
    Filed: January 6, 2012
    Publication date: July 19, 2012
    Inventors: Daniel B. Miracle, Seshacharyulu Tamirisakandala, Radhakrishna B. Bhat, Jaimie S. Tiley
  • Titanium alloy microstructural refinement method and high temperature, high strain rate superplastic forming of titanium alloys
    Patent number: 8128764
    Abstract: A method for refining the microstructure of titanium alloys in a single thermomechanical processing step, wherein the titanium alloy comprises boron. In some embodiments, the method comprises the steps of first adding boron to the titanium alloy then subjecting the boron-containing titanium alloy to a thermomechanical processing step. Also provided is a method for achieving superplasticity in titanium alloys comprising the steps of selecting a boron-containing titanium alloy, determining the temperature and strain rate necessary to achieve beta superplasticity, and applying sufficient temperature and strain rate to the boron-containing titanium alloy to deform the alloy to the desired shape. Also provided methods of forming titanium alloy parts and the parts prepared by these methods.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: March 6, 2012
    Inventors: Daniel B. Miracle, Seshacharyulu Tamirisakandala, Radhakrishna B. Bhat, Jaimie S Tiley
  • Titanium Alloy Microstructural Refinement Method and High Temperature, High Strain Rate Superplastic Forming of Titanium Alloys
    Publication number: 20110146853
    Abstract: A method for refining the microstructure of titanium alloys in a single thermomechanical processing step, wherein the titanium alloy comprises boron. In some embodiments, the method comprises the steps of first adding boron to the titanium alloy then subjecting the boron-containing titanium alloy to a thermomechanical processing step. Also provided is a method for achieving superplasticity in titanium alloys comprising the steps of selecting a boron-containing titanium alloy, determining the temperature and strain rate necessary to achieve beta superplasticity, and applying sufficient temperature and strain rate to the boron-containing titanium alloy to deform the alloy to the desired shape. Also provided methods of forming titanium alloy parts and the parts prepared by these methods.
    Type: Application
    Filed: December 13, 2004
    Publication date: June 23, 2011
    Applicant: OHIO UNIVERSITY
    Inventors: Daniel B. Miracle, Seshacharyulu Tamirisakandala, Radhakrishna B. Bhat, Jaimie S. Tiley
  • Method of producing high strength, high stiffness and high ductility titanium alloys
    Patent number: 7879286
    Abstract: A method of producing a high strength, high stiffness and high ductility titanium alloy, comprising combining the titanium alloy with boron so that the boron concentration in the boron-modified titanium alloy does not exceed the eutectic limit. The carbon concentration of the boron-modified titanium alloy is maintained below a predetermined limit to avoid embrittlement. The boron-modified alloy is heated to a temperature above the beta transus temperature to eliminate any supersaturated excess boron. The boron-modified titanium alloy is deformed at a speed slow enough to prevent microstructural damage and reduced ductility.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: February 1, 2011
    Inventors: Daniel B. Miracle, Seshacharyulu Tamirisakandala, Radhakrishna B. Bhat, Dale J. McEldowney, Jerry L. Fields, William M. Hanusiak, Rob L. Grabow, C. Fred Yolton, Eric S. Bono
  • Method of producing high strength, high stiffness and high ductility titanium alloys
    Publication number: 20070286761
    Abstract: A method of producing a high strength, high stiffness and high ductility titanium alloy, comprising combining the titanium alloy with boron so that the boron concentration in the boron-modified titanium alloy does not exceed the eutectic limit. The carbon concentration of the boron-modified titanium alloy is maintained below a predetermined limit to avoid embrittlement. The boron-modified alloy is heated to a temperature above the beta transus temperature to eliminate any supersaturated excess boron. The boron-modified titanium alloy is deformed at a speed slow enough to prevent microstructural damage and reduced ductility.
    Type: Application
    Filed: June 7, 2006
    Publication date: December 13, 2007
    Inventors: Daniel B. Miracle, Seshacharyulu Tamirisakandala, Radhakrishna B. Bhat, Dale J. McEldowney, Jerry L. Fields, William M. Hanusiak, Rob L. Grabow, C. Fred Yolton, Eric S. Bono