NDLI: Jumplike Deformation as the Scale Effect Measure for the Metal Deformed Volume Under Deep-Freezing Conditions: Experiment and Modeling

Content Provider	Springer Nature Link
Author	Vorob’ev, E. V. Anpilogova, T. V.
Copyright Year	2014
Abstract	Tensile tests of titanium alloy and austenitic steel specimens have been conducted in the range of temperatures 300–4 K. Under deep-freezing conditions, there occurs a new type of scale effect – variation of low-temperature jumplike deformation, which causes a sharp variation of the plasticity characteristic (the relative elongation). The difference between jumplike deformation values in the maximum and minimum cross-sectional areas of standard cylindrical specimens is introduced as the scale effect measure. Via mathematical modeling performed for 03Kh20N16AG6 steel, we have obtained dependencies of the scale effect on the most critical factors – the trigger stress of deformation jump and specimen–test machine system stiffness. The scale effect nature is studied, and options of its minimization, in reference to the standardization of mechanical tests, are discussed.
Starting Page	765
Ending Page	772
Page Count	8
File Format	PDF
ISSN	00392316
Journal	Strength of Materials
Volume Number	46
Issue Number	6
e-ISSN	15739325
Language	English
Publisher	Springer US
Publisher Date	2014-12-13
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	jumplike deformation cryogenic temperatures scale effect nonlinear model mechanical characteristics standard specimen test machine rigidity Characterization and Evaluation of Materials Structural Mechanics Mechanics
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials

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