Method of preparing a high strength dual phase steel plate with

Details Method of preparing a high strength dual phase steel plate with Method of preparing a high strength dual phase steel plate with

1994-12-06

1996-07-02

Yee, Deborah

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148653, C21D 802

Patent

active

055318428

ABSTRACT:
A high strength steel composition comprising ferrite and martensite/bainite phases, the ferrite phase having primarily vanadium and niobium carbide or carbonitride precipitates, is prepared by a first rolling above the austenite recrystallization temperature, a second rolling below the austenite recrystallization temperature; cooling between the Ar.sub.3 transformation point and 500.degree. C.; and water cooling to below about 400.degree. C.

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