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Cr-W-V bainitic/ferritic steel with improved strength and toughness and method of making

Patent ·
OSTI ID:7275722
;
This work describes a high strength, high toughness bainitic/ferritic steel alloy comprising about 2.75% to 4.0% chromium, about 2.0% to 3.5% tungsten, about 0.10% to 0.30% vanadium, and about 0.1% to 0.15% carbon with the balance iron, wherein the percentages are by total weight of the composition, wherein the alloy having been heated to an austenitizing temperature and then cooled at a rate sufficient to produce carbide-free acicular bainite. 15 figures.
DOE Contract Number:
AC05-84OR21400
Assignee:
Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States)
Patent Number(s):
A; US 5292384
Application Number:
PPN: US 7-914452
OSTI ID:
7275722
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700480 -- Fusion Technology-- Component Development
ALLOYS
BAINITE
CHEMICAL COMPOSITION
FABRICATION
FERRITIC STEELS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MECHANICAL PROPERTIES
Ma
Materials Studies-- (1992-)
RADIOACTIVITY
STEELS
THERMONUCLEAR REACTOR MATERIALS