公开(公告)号：US20110277886A1

公开(公告)日：2011-11-17

申请号：US13030170

申请日：2011-02-18

申请人： Yuxuan Xie ,  Chen Zhu ,  Julie M. Cairney ,  Simon P. Ringer ,  Chris R. Killmore ,  Frank Barbaro ,  Jim Williams

发明人： Yuxuan Xie ,  Chen Zhu ,  Julie M. Cairney ,  Simon P. Ringer ,  Chris R. Killmore ,  Frank Barbaro ,  Jim Williams

IPC分类号： C23C8/26 ,  C22C38/02 ,  C22C38/06 ,  B22D25/00 ,  C22C38/12 ,  C22C38/04 ,  B82Y30/00

CPC分类号： C22C38/02 ,  C21D1/06 ,  C21D8/02 ,  C22C38/001 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C23C8/02 ,  C23C8/26 ,  C23C8/38 ,  C23C8/50

摘要： A nitrided steel product or thin cast steel strip comprising, by weight, less than 0.25% carbon, between 0.20 and 2.0% manganese, between 0.05 and 0.50% silicon, less than 0.01% aluminum, niobium between 0.01 and about 0.20%, and between 0.01 and 0.075% nitrogen, and having a majority of the microstructure comprised of bainite and acicular ferrite, having more than 70% niobium in solid solution prior to nitriding and having yield strength between 650 MPa and 800 MPa and tensile strength between 750 MPa and 900 MPa.

摘要翻译： 一种氮化钢产品或薄铸钢带，其包含重量比小于0.25％的碳，0.20％至2.0％的锰，0.05至0.50％的硅，小于0.01％的铝，铌在0.01至约0.20％之间，以及介于 0.01和0.075％的氮，并且具有由贝氏体和针状铁素体组成的大部分微结构，在氮化之前在固溶体中具有超过70％的铌，并且屈服强度在650MPa和800MPa之间，拉伸强度在750MPa和900之间 MPa。

公开(公告)号：US20120186703A1

公开(公告)日：2012-07-26

申请号：US13355084

申请日：2012-01-20

申请人： Yuxuan Xie ,  Sachin L. Shrestha ,  Peter J. Felfer ,  Julie M. Cairney ,  Chris R. Killmore ,  Kristin R. Carpenter ,  Harold R. Kaul ,  Simon P. Ringer

发明人： Yuxuan Xie ,  Sachin L. Shrestha ,  Peter J. Felfer ,  Julie M. Cairney ,  Chris R. Killmore ,  Kristin R. Carpenter ,  Harold R. Kaul ,  Simon P. Ringer

IPC分类号： B32B15/01 ,  B22D11/00 ,  C21D8/02 ,  C23C8/02

CPC分类号： C21D1/06 ,  B22D11/0622 ,  C21D8/02 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C23C8/02 ,  C23C8/26 ,  C23C8/38 ,  C23C8/50 ,  C23C8/80

摘要： A nitrided steel product or thin cast steel strip comprising, by weight, less than 0.25% carbon, between 0.20 and 2.0% manganese, between 0.05 and 0.50% silicon, less than 0.01% aluminum, niobium between 0.01 and about 0.20%, and between 0.01 and 0.075% nitrogen, and having a majority of the microstructure comprised of bainite and acicular ferrite, having more than 70% niobium in solid solution prior to nitriding and having after nitriding for one hour yield strength between 600 MPa and 800 MPa and tensile strength between 650 MPa and 900 MPa and no more than a 2% decrease in total elongation from the steel product prior to nitriding.

摘要翻译： 一种氮化钢产品或薄铸钢带，其包含重量比小于0.25％的碳，0.20％至2.0％的锰，0.05至0.50％的硅，小于0.01％的铝，铌在0.01至约0.20％之间，以及介于 0.01和0.075％的氮，并且具有由贝氏体和针状铁素体组成的大部分微观结构，在氮化之前在固溶体中具有超过70％的铌，并且在氮化1小时后，屈服强度在600MPa和800MPa之间，拉伸强度 在氮化之前，钢铁产品的总伸长率在650MPa和900MPa之间不超过2％。