Patents by Inventor Vinay V. Mahashabde

Vinay V. Mahashabde 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).

  • Hot Rolled Precipitation Strengthened and Grain Refined High Strength Dual Phase Steel Sheet Possessing 600 MPa Minimum Tensile Strength and a Process Thereof
    Publication number: 20200123630
    Abstract: A process for producing dual phase steel sheet including steps of making a liquid steel having a chemical composition in wt % of C: 0.03-0.12. Mn: 0.8-1.5. Si: <0.1, Cr: 0.3-0.7, S: 0.008 maximum, P: 0.025 maximum, Al: 0.01 to 0.1, N: 0.007 maximum. Nb: 0.005-0.035. and V: 0.06 maximum, remainder Fe; continuous casting the liquid steel into a slab; hot rolling the slab into a hot rolled sheet at finish rolling temperature (FRT) 840±30 ° C.; cooling the hot rolled sheet on the run out table at a cooling rate 40 ?70° C./s to an intermediate temperature (Tint) of 720° C.?Tint?650° C.; natural cooling the hot rolled sheet for a duration of 5-7 seconds and rapidly cooling the hot rolled sheet to transform remaining carbon enriched austenite to martensite, at cooling rate of 40-70 ° C./s to a coiling temperature below 400° C.
    Type: Application
    Filed: May 10, 2017
    Publication date: April 23, 2020
    Inventors: Appa Rao Chintha, Kundu Saurabh, Prashant Pathak, Sushil Kumar Giri, Soumendu Monia, Subhankar Das Bakshi, G. Senthil Kumar, Vinay V. Mahashabde