skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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 = {1986},
month = {10}
}