中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

8 records (took 0.023 seconds)

    MARTENSITIC-AUSTENTITIC STEEL
    2.
    发明专利
    MARTENSITIC-AUSTENTITIC STEEL 未知

    公开(公告)号：CA2251805A1

    公开(公告)日：1997-10-23

    申请号：CA2251805

    申请日：1997-03-25

    Applicant: ABB RESEARCH LTD

    Inventor： ERNST PETER ,  SPEIDEL MARKUS O ,  UGGOWITZER PETER J ,  STEINS REINER

    IPC: C21D6/00 ,  C22C38/00 ,  C22C38/52 ,  C22C38/58

    Abstract: This invention concerns a martensitic-austentitic steel consisting essentially (in wt%) of: 8 to 15 % chromium, 0.5 to 2.5 % molybdenum, up to 2 % tungsten, 4 to 10 % cobalt, 0.5 to 6 % nickel, 2.5 to 8 % manganese, 0.1 to 1.0 % vanadium 0.05 to 0,25 % nitrogen, up to 0.2 % carbon, the rest being iron with impurities. This martensi tic-austentitic steel can be used, in particular, as material for rotors or rotor disks in gas turbines operating at temperatures above above 450 .degree.C. The adjustment of the two phase martensitic-austentitic structure is done by heat treatment of the solution annealed and quenched steel structure in a temperature range between 550 .degree.C and 650 .degree.C.

    4.
    发明专利
    未知

    公开(公告)号：DE19614407A1

    公开(公告)日：1997-10-16

    申请号：DE19614407

    申请日：1996-04-12

    Applicant: ABB RESEARCH LTD

    Inventor： ERNST PETER DR ,  UGGOWITZER PETER J PROF DR ,  SPEIDEL MARKUS O PROF DR DR ,  STEINS REINER

    IPC: C21D6/00 ,  C22C38/00 ,  C22C38/52 ,  C22C38/58 ,  C22C38/18 ,  C22C38/22 ,  C22C38/38 ,  C22C38/40 ,  C22C38/46

    Abstract: This invention concerns a martensitic-austentitic steel consisting essentially (in wt%) of: 8 to 15 % chromium, 0.5 to 2.5 % molybdenum, up to 2 % tungsten, 4 to 10 % cobalt, 0.5 to 6 % nickel, 2.5 to 8 % manganese, 0.1 to 1.0 % vanadium, 0.05 to 0,25 % nitrogen, up to 0.2 % carbon, the rest being iron with impurities. This martensitic-austentitic steel can be used, in particular, as material for rotors or rotor disks in gas turbines operating at temperatures above 450 DEG C. The adjustment of the two phase martensitic-austentitic structure is done by heat treatment of the solution annealed and quenched steel structure in a temperature range between 550 DEG C and 650 DEG C.

Patent Agency Ranking