Parameter Representation of Low-Temperature Yield Behavior of Body-Centered Cubic Transition Metals

[+] Author and Article Information
P. E. Bennett

Mechanics Department, Westinghouse Research Laboratories, Pittsburgh, Pa.

G. M. Sinclair

Department of Theoretical and Applied Mechanics, University of Illinois, Urbana, Ill.

J. Basic Eng 88(2), 518-524 (Jun 01, 1966) (7 pages) doi:10.1115/1.3645890 History: Received March 22, 1965; Online November 03, 2011


In the low-temperature range, the engineering yield strength of polycrystalline bcc metals can change by a factor of 10 or more with serious consequences appearing in the form of catastrophic brittle fracture. Engineering variables known to have an important effect on the yield behavior are state of stress, temperature, loading or strain rate, composition, and microstructure. For iron, chromium, molybdenum, and tungsten, it is shown that yield behavior can be represented by a single-valued relation between two dimensionless parameters.

Copyright © 1966 by ASME
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