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

259

5

Here, j is the experiment number; n is the number of experiments ( n = 3); N i is the number of experimental points for the j -th experiment; i is the number of the experimental point; σ i and z i are the flow stress values calculated by the model and obtained in real tests, respectively.

(a)

(b)

1.4

III

6

1.2

5

1.0

4

II

0.8

3

0.6

Strain rate (1/s)

Strain rate (1/s)

2

0.4

I

1

0.2

0

0.0

0.00

0.05

0.10

0.15

0.20

0

1

2

3

4

5

6

Time (s)

Time (s)

(c)

(d)

300 С

300 С

180

III

150

I

150

120

100

II

90

Flow stress (MPa)

60

Flow stress (MPa)

50

30

0

0

0

1

2

3

4

5

6

0.00

0.05

0.10

0.15

0.20

Time (s)

Time (s)

(e)

(f)

400 С

400 С

120

150

100

III

120

I

80

90

II

60

60

40

Flow stress (MPa)

Flow stress (MPa)

30

20

0

0

0

1

2

3

4

5

6

0.00

0.05

0.10

0.15

0.20

Time (s)

Time (s)

Fig. 2. Forms of loading I–III (a, b); experimental (blue) and model-simulated (orange) curves showing the time dependences of flow stress for the V95\3% TiC MMC deformed at 300 ℃ (c, d) and 400 ℃ (e, f).