Complex metallographic structured steel and method of...

C - Chemistry – Metallurgy – 22 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C22C 38/00 (2006.01) C21D 9/46 (2006.01) C22C 38/12 (2006.01) C23C 2/06 (2006.01)

Patent

CA 2701903

A multi-phase steel sheet having microstructure having in combination ferrite, martensite of between 3% and 65% by volume, and at least one microstructure selected from the group consisting of, bainite and retained austenite, and having fine complex precipitates selected from the group of TiC, NbC, TiN, NbN, (Ti.Nb)C, (Ti.Nb)N, and (Ti.Nb)(C.N) particles having at least 50% smaller than 20 nm in size, and physical properties having tensile strength greater than about 780 megapascals and at least one of the properties of elongation greater than about 10%, yield ratio greater than about 70%, and hole expansion ratio greater than about 50%.

Cette invention concerne une tôle d'acier à phases multiples ayant une microstructure contenant en combinaison de la ferrite, de la martensite en une proportion allant de 3 à 65% par volume, et au moins une microstructure choisie dans le groupe consistant en la bainite et l'austénite résiduelle et ayant des précipités de complexe fin choisis dans le groupe consistant en des particules de TiC, NbC, TiN, NbN, (Ti.Nb)C, (Ti.Nb)N, et (Ti.Nb)(C.N) dont la taille est d'au moins 50% inférieure à 20 nm, et dont les propriétés physiques comprennent une résistance à la traction supérieure à environ 780 mégapascals et au moins une des propriétés parmi un allongement supérieur d'environ 10%, un rapport d'élasticité supérieur d'environ 70%, et un rapport d'expansion du trou supérieur d'environ 50%.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Complex metallographic structured steel and method of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Complex metallographic structured steel and method of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Complex metallographic structured steel and method of... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2027940

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.