Effect of the Lattice Parameter on Brittle Fracture of Metals at Low Temperatures

Abstract:

The paper presents the results of tests of metallic materials at low temperatures. It is shown that with the decreasing of temperature, the mechanical characteristics of materials change significantly: strength limits, yield strength increase, and relative elongation decrease. It is shown that the temperature of the brittle-viscous transition depends on the lattice parameter of the materials. The higher the lattice parameter is, the lower is the temperature of the brittle-viscous transition. It is shown that the lattice parameter can be used to estimate the temperature of the brittle-viscous transition

• Periodical: Materials Science Forum (Volume 989)
• Pages: 290-295
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.989.290
• Online since: May 2020
• Authors: Alexander A. Khlybov, Yury G. Kabaldin, Maksim S. Anosov*
• Keywords: Brittle Fracture, Cold Resistance, Heat Treatment, Lattice Parameter

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