PSI - Issue 65

A.S. Smirnov et al. / Procedia Structural Integrity 65 (2024) 255–262 A.S. Smirnov, A.V. Konovalov,V.S. Kanakin and I.A. Spirina/ Structural Integrity Procedia 00 (2024) 000–000

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Fig. 1. Titanium carbide powder (a), the grain microstructure of the composite matrix (b), and the distribution of titanium carbide particles in the V95\3% TiC metal matrix composite (c, d).

Compression experiments in the temperature range from 300 to 500 °C were carried out on specimens with the diameter d 0 = 6 ± 0.05 mm and the height h 0 = 9 ± 0.05 mm. A graphite-based lubricant was used to reduce friction between the die and the specimen. The relation of the rheological behavior and the volume fraction of the dynamic recrystallization to the strain– strain-rate conditions of deformation is described with the application of a structural-phenomenological model of flow stress (Smirnov et. al., 2015).

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a exp( a ) a , k a V (a a V ) , q, k a p n           2 3 11 10 0 12  

(1)

1

2

3

V

V a a    

,

n

p

13

14

1

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