Properties of formable high strength sheet steels for automotive use
Conference
·
· SAE Prepr.; (United States)
OSTI ID:6464173
Metallurgical factors affecting the press formability of the newly developed high strength sheet steels have been discussed. Dual phase steels, CHLY (cold-rolled sheet steel) and HTP-D (as-hotrolled sheet steel), produced by control of cooling conditions after intercritical annealing or hot-rolling exhibit very low yield to tensile strength ratio and high n-value. Rephosphorized extralow carbon steel, CHRX, produced by continuous annealing with rapid cooling is characterized by its extremely high r-value and low yield strength. CHLY, HTP-D and CHRX have large bake hardenability. Precipitation hardened steel, HTP-F (hot-rolled sheel steel), produced by adjusting carbon equivalent and sulfur content is suitable for manufacturing wheel rims owing to its good formability after flash butt welding.
- Research Organization:
- Kawasaki Steel Corp.
- OSTI ID:
- 6464173
- Report Number(s):
- CONF-8311156-
- Conference Information:
- Journal Name: SAE Prepr.; (United States) Journal Volume: 830883
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330601 -- Vehicle Design Factors-- Body & Chassis
36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
ANNEALING
AUTOMOBILES
CARBON
COOLING
ELEMENTS
FABRICATION
HARDENING
HEAT TREATMENTS
IRON ALLOYS
IRON BASE ALLOYS
JOINING
MANUFACTURING
MATERIALS
MATERIALS WORKING
MECHANICAL PROPERTIES
METALLURGY
NONMETALS
PRECIPITATION HARDENING
PRESSING
R FACTORS
ROLLING
SHEETS
STEELS
SULFUR CONTENT
TENSILE PROPERTIES
VEHICLES
WELDING
WHEELS
YIELD STRENGTH
330601 -- Vehicle Design Factors-- Body & Chassis
36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
ANNEALING
AUTOMOBILES
CARBON
COOLING
ELEMENTS
FABRICATION
HARDENING
HEAT TREATMENTS
IRON ALLOYS
IRON BASE ALLOYS
JOINING
MANUFACTURING
MATERIALS
MATERIALS WORKING
MECHANICAL PROPERTIES
METALLURGY
NONMETALS
PRECIPITATION HARDENING
PRESSING
R FACTORS
ROLLING
SHEETS
STEELS
SULFUR CONTENT
TENSILE PROPERTIES
VEHICLES
WELDING
WHEELS
YIELD STRENGTH