公开(公告)号：US20200232078A1

公开(公告)日：2020-07-23

申请号：US16650604

申请日：2018-10-05

申请人： Uddeholms AB

发明人： Sebastian Ejnermark ,  Christos Oikonomou ,  Olof Tönnberg ,  Venkata Seshendra Karamchedu ,  Richard Oliver

IPC分类号： C22C38/52 ,  C22C38/46 ,  C22C38/44 ,  C22C38/42 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D9/00 ,  C22C1/02 ,  C22C33/02 ,  B22F1/00 ,  B33Y70/00

摘要： The invention is directed to a steel for making a hot working tool, the steel consists of in weight % (wt. %): C0.01-0.08 Si0.05-0.6  Mn0.1-0.8 Cr3.9-6.1 Ni1.0-3.0 Mo7.0-9.0 Co 9.0-12.5 Cu0.2-6.5 N0.01-0.15 Balance optional elements, impurities and Fe. The invention is also directed to pre-alloyed powders made from said alloy and AM articles produced from said powder.

公开(公告)号：US20230035760A1

公开(公告)日：2023-02-02

申请号：US17958637

申请日：2022-10-03

申请人： UDDEHOLMS AB

发明人： Venkata Seshendra Karamchedu ,  Anna Medvedeva ,  Christos Oikonomou ,  Jesper Erik Joachim Sparrevohn Vang ,  Petter Damm

IPC分类号： C22C38/44 ,  B33Y70/00 ,  C23C4/067 ,  B22F3/105 ,  B22F3/115 ,  B22F3/15 ,  B22F3/20 ,  C22C33/02 ,  C22C33/04 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/54 ,  B22F1/052

摘要： A pre-alloyed powder having a composition consisting of, in weight % (wt. %): C, 0.02-0.04; Si, 0.1-0.4; Mn, 0.1-0.5; Cr, 11-13; Ni, 7-10; Cr+Ni, 19-23; Mo, 1-25; Al, 1.4-2.0; N, 0.01-0.75. Optionally, the pre-alloyed powder contains: Cu, 0.05-2.5; B, 0.002-2.0; S, 0.01-0.25; Nb, 0.01 max; Ti, 2 max; Zr, 2, max; Ta, 2 max; Hf, 2 max; Y, 2 max; Ca, 0.0003-0.009; Mg, 0.01 max; O, 0.003-0.80; and REM, 0.2 max. Fe and impurities comprise the balance.