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Bainitic stabilization of austenite in low alloy steels [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
9 pages : digital, PDF file
Additional Creators
Northwestern University (Evanston, Ill.), United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Stabilization of retained austenite via bainitic transformation was studied in a triple-phase, ferrite/bainite/austenite steel 0.26C1.52Si-1.2Mn. Volume fraction and stability of retained austenite are varied by isothermal transformation time at 752F following intercritical annealing at 1418F. Austenite stability is measured using the Bolling-Richman technique. Austenite content is measured by and austenite carbon content is estimated from lattice parameters. Strength and ductility measured in both uniaxial and plane-strain tension are correlated with austenite amount and stability. While austenite content peaks at 3 minutes transformation time, stability continues to increase out to 5 minutes associated with a saturation of austenite carbon content and continued refinement of austenite particle size. Despite the reduced austenite content of 8 percent, the higher stability provided by the 5 minutes treatment gives superior mechanical properties.
Report Numbers
E 1.99:conf-9210322--1
conf-9210322--1
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
12/31/1992.
"conf-9210322--1"
"DE93008275"
ISS-AIME symposium on fundamentals of aging and tempering in bainitic and martensitic steel products,Warrendale, PA (United States),25-28 Oct 1992.
Olson, G.B.; Brandt, M.L.
Funding Information
FG02-88ER45365
View MARC record | catkey: 14454825