Controlled rolling process for dual phase steels and application to rod, wire, sheet and other shapes
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.
- DOE Contract Number:
- AC03-76SF00098
- Assignee:
- Univ. of California, Berkeley, CA (United States)
- Patent Number(s):
- A; US 4619714
- Application Number:
- PPN: US 6-676066
- OSTI ID:
- 7007594
- Country of Publication:
- United States
- Language:
- English
Similar Records
Design of low carbon dual-phase steels for high strength wire
Microstructure-mechanical property relationships of dual-phase steel wire
Related Subjects
320303 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ALLOYS
EFFICIENCY
ENERGY EFFICIENCY
FABRICATION
HOT WORKING
INDUSTRIAL PLANTS
INDUSTRY
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS WORKING
MECHANICAL PROPERTIES
METAL INDUSTRY
ROLLING
STEELS