High strength, high ductility low carbon steel

Patent · Sun Jan 01 00:00:00 EST 1978

OSTI ID:862990

Koo, Jayoung ^[1]; Thomas, Gareth ^[1]

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1. Berkeley, CA

A high strength, high ductility low carbon steel consisting essentially of iron, 0.05-0.15 wt% carbon, and 1-3 wt% silicon. Minor amounts of other constituents may be present. The steel is characterized by a duplex ferrite-martensite microstructure in a fibrous morphology. The microstructure is developed by heat treatment consisting of initial austenitizing treatment followed by annealing in the (.alpha. + .gamma.) range with intermediate quenching.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4067756
• OSTI ID: 862990
• Country of Publication: United States
• Language: English

Related Subjects

strength
ductility
carbon
steel
consisting
essentially
iron
05-0
15
wt
1-3
silicon
minor
amounts
constituents
characterized
duplex
ferrite-martensite
microstructure
fibrous
morphology
developed
heat
treatment
initial
austenitizing
followed
annealing
alpha
gamma
range
intermediate
quenching
minor amounts
consisting essentially
heat treatment
minor amount
carbon steel
treatment followed
/148/420/