High strength, high ductility low carbon steel

Patent · 31 December 1977

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
• 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

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