Development of high strength and toughness microcomposite HSLA Fe/Cr/Mn/C steel with and without Nb

Conference · Tue Dec 01 04:00:00 EST 1987

OSTI ID:5049990

Thomas, G; Kim, J K; Manojlovic, D; Milovic, R

Microcomposite steels have been designed to consist of fine packet martensite and interlath austenite films in order to attain mechanical and corrosion properties with superior combinations of strength, fracture toughness, and formability in certain conditions. In an effort to improve these properties for on-line production in a hot mill for rounds and plates, modifications with niobium have been investigated and the CCT diagrams determined. The addition of niobium has achieved grain refinement without destroying the microcomposite morphology of packet martensite and austenite. Comparisons of properties, structure and processing are presented. 7 refs., 19 figs., 3 tabs.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5049990
• Report Number(s): LBL-23968; CONF-8711180-1; ON: DE88009813
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
360603 -- Materials-- Properties
ALLOYS
AUSTENITE
CARBON ADDITIONS
CARBON STEELS
COMPOSITE MATERIALS
CRYSTAL STRUCTURE
FRACTURE PROPERTIES
IRON ALLOYS
IRON BASE ALLOYS
MARTENSITE
MATERIALS
MECHANICAL PROPERTIES
MICROSTRUCTURE
NIOBIUM ADDITIONS
NIOBIUM ALLOYS
STEELS