Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 628, Issue -, Pages 104-109Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2015.01.036
Keywords
Titanium alloys; Bulk deformation; Dynamic recrystallization; Nanostructured materials; Grain refinement
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Funding
- Ministry of Education and Science of the Russian Federation, (Belgorod State University) [1683, 11.1816.2014/K]
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The relationship, sigma proportional to D-N, between the flow stress (sigma) and the size (D) of deformation-induced grains has been established for commercial-purity titanium in the interval 77-1123 K. The relationship has three parts with different grain size exponent (N). The N values of 0.83, 0.38, 0.95 were obtained in the intervals of low stresses (hot deformation), moderate stresses (warm deformation) and high stresses (cold deformation), respectively. The changes in the values of N were suggested to be associated with different mechanisms of microstructure evolution. (C) 2015 Elsevier B.V. All rights reserved.
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