Controlled rolling process for dual phase steels and application to rod, wire, sheet and other shapes
Abstract
An improved, energy efficient, hot rolling method for direct production of cold formable dual-phase steel is provided. The steel is heated to completely austenitize it and then continuously hot rolled and cooled down into the ferrite-austenite two phase region to a temperature which is just below the effective Ar[sub 3] temperature. The hot rolled steel is then rapidly quenched to provide an alloy containing strong, tough lath martensite (fibers) in a ductile soft ferrite matrix. The method is particularly useful for providing rods in which form the alloy is capable of being drawn into high strength wire or the like in a cold drawing operation without any intermediate annealing or patenting, and has excellent strength, ductility and fatigue characteristics. 3 figs.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 7007594
- Patent Number(s):
- 4619714
- Application Number:
- PPN: US 6-676066
- Assignee:
- Univ. of California, Berkeley, CA (United States)
- DOE Contract Number:
- AC03-76SF00098
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 29 Nov 1984
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; METAL INDUSTRY; ENERGY EFFICIENCY; STEELS; HOT WORKING; ROLLING; INDUSTRIAL PLANTS; MECHANICAL PROPERTIES; ALLOYS; EFFICIENCY; FABRICATION; INDUSTRY; IRON ALLOYS; IRON BASE ALLOYS; MATERIALS WORKING; 360101* - Metals & Alloys- Preparation & Fabrication; 320303 - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Equipment & Processes
Citation Formats
Thomas, G, Ahn, J H, and Kim, N J. Controlled rolling process for dual phase steels and application to rod, wire, sheet and other shapes. United States: N. p., 1986.
Web.
Thomas, G, Ahn, J H, & Kim, N J. Controlled rolling process for dual phase steels and application to rod, wire, sheet and other shapes. United States.
Thomas, G, Ahn, J H, and Kim, N J. Tue .
"Controlled rolling process for dual phase steels and application to rod, wire, sheet and other shapes". United States.
@article{osti_7007594,
title = {Controlled rolling process for dual phase steels and application to rod, wire, sheet and other shapes},
author = {Thomas, G and Ahn, J H and Kim, N J},
abstractNote = {An improved, energy efficient, hot rolling method for direct production of cold formable dual-phase steel is provided. The steel is heated to completely austenitize it and then continuously hot rolled and cooled down into the ferrite-austenite two phase region to a temperature which is just below the effective Ar[sub 3] temperature. The hot rolled steel is then rapidly quenched to provide an alloy containing strong, tough lath martensite (fibers) in a ductile soft ferrite matrix. The method is particularly useful for providing rods in which form the alloy is capable of being drawn into high strength wire or the like in a cold drawing operation without any intermediate annealing or patenting, and has excellent strength, ductility and fatigue characteristics. 3 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 28 00:00:00 EST 1986},
month = {Tue Oct 28 00:00:00 EST 1986}
}