Investigation of Relationship between Structural and Crystallographic Condition of some Constructional Materials and their Mechanical Properties

Abstract:

This paper presents the results of an analytical study into the relationship between the strength and plastic properties of a series of structural materials. For this purpose the behavior of different materials during the stretching process of flat tensile samples with a circular hub was studied. It was found that the criterion of relative strength A depends on the structure and type of the crystal: materials, having a body-centered crystal lattice A < 1, and materials, having face-centered crystal lattice, A > 1. Astable linear relationship, depending on the structure and the type of crystal lattice of the material, between the criterion of relative strength A, geometric parameters of the sample (R and b) with the hub, length of the zone of material’s plastic flow l_p and tension δ was found to exist.

• Periodical: Materials Science Forum (Volume 870)
• Pages: 207-213
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.870.207
• Online since: September 2016
• Authors: V.V. Novokreschenov, R.V. Rodyakina*, M.A. Karimbekov
• Keywords: Criterion of Strength, Crystal Lattice, Radius of the Hub, Structure, Tension, Tension Test, Zone of Plastic Flow

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