Table 3 Values of the low-energy peak (in mJ/m 2) from the AR GSFE curves and the ideal shear stress (ISS) in GPa obtained from the first peak of \([\frac{1}{b}\frac{\partial \gamma }{\partial u}]\) for all slip systems at P = 0 and P = 4.9 GPa.

From: First-principles study of crystallographic slip modes in ω-Zr

 

P = 0 GPa

P = 4.9 GPa

γ peak

ISS

γ peak

ISS

prismatic 〈c

278

3.84

318

4.22

prismatic-II 〈c

444

4.95

518

5.60

prismatic-II \(\langle 10\bar{1}0\rangle \)

682

6.05

754

6.73

pyramidal-I 〈a

713

7.00

758

7.38

pyramidal-I 〈c + a

815

6.48

875

7.07

pyramidal-II 〈c + a

826

6.26

913

6.80

basal \(\langle 10\bar{1}0\rangle \)

1456

10.99

1604

11.87

basal 〈a

1607

9.85

1786

10.90

prismatic 〈a

2213

14.89

2433

16.93