公开(公告)号：US20150267280A1

公开(公告)日：2015-09-24

申请号：US14361292

申请日：2012-11-28

Applicant: ARCELORMITTAL INVESTIGACION Y DESARROLLO SL

Inventor： Hyun Jo Jun ,  Narayan Subramaniam Pottore ,  Nina Michailovna Fonstein

IPC: C22C38/12 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/04

CPC classification number: C22C38/12 ,  C21D9/40 ,  C22C38/00 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

Abstract: A dual phase steel (martensite+ferrite) having a tensile strength of at least 980 MPa, and a total elongation of at least 15%. The dual phase steel may have a total elongation of at least 18%. The dual phase steel may also have a tensile strength of at least 1180 MPa. The dual phase steel may include between 0.5-3.5 wt. % Si, and more preferably between 1.5-2.5 wt. % Si.

Abstract translation: 拉伸强度为980MPa，总伸长率为15％以上的双相钢（马氏体+铁素体）。 双相钢可以具有至少18％的总伸长率。 双相钢也可以具有至少1180MPa的拉伸强度。 双相钢可以包括0.5-3.5重量％ ％Si，更优选在1.5-2.5wt。 ％Si。