Patents by Inventor Zhongwu ZHANG

Zhongwu ZHANG 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).

  • Ultrahigh-strength maraging stainless steel with multiphase strengthening and preparation method thereof
    Patent number: 11767574
    Abstract: Disclosed is an ultrahigh-strength maraging stainless steel with multiphase strengthening and a preparation method thereof. The stainless steel has a composition in mass percentage as follows: 1.0-5.0% of Co, 6.0-10.0% of Ni, 11.0-17.0% of Cr, 0.3-2.0% of Ti, 3.0-7.0% of Mo, 0.08-1.0% of Mn, 0.08-0.5% of Si, 0.02% or less of C, 0.003% or less of P, 0.003% or less of S, and Fe as a balance.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: September 26, 2023
    Assignee: Harbin Engineering University
    Inventors: Zhongwu Zhang, Junpeng Li
  • ULTRAHIGH-STRENGTH MARAGING STAINLESS STEEL WITH MULTIPHASE STRENGTHENING AND PREPARATION METHOD THEREOF
    Publication number: 20230072654
    Abstract: Disclosed is an ultrahigh-strength maraging stainless steel with multiphase strengthening and a preparation method thereof. The stainless steel has a composition in mass percentage as follows: 1.0-5.0% of Co, 6.0-10.0% of Ni, 11.0-17.0% of Cr, 0.3-2.0% of Ti, 3.0-7.0% of Mo, 0.08-1.0% of Mn, 0.08-0.5% of Si, 0.02% or less of C, 0.003% or less of P, 0.003% or less of S, and Fe as a balance.
    Type: Application
    Filed: July 15, 2022
    Publication date: March 9, 2023
    Applicant: Harbin Engineering University
    Inventors: Zhongwu ZHANG, Junpeng LI