Table 11 6061-T651 residual yield strength model parameters

M

Taylor factor

2

Textured alloy (Simar et al. 2007)

G

Shear modulus

27 GPa

(Myhr and Grong 2000; Myhr et al. 2001; Myhr et al. 2004)

b

Magnitude of Burger’s vector

0.286 nm

σ₀

Friction stress of pure Al

10 MPa

(Myhr and Grong 2000; Myhr et al. 2001; Myhr et al. 2004)

H_Cu

Cu solid solution strengthening constant

46.4 MPa wt%^2/3

(Myhr and Grong 2000; Myhr et al. 2001; Myhr et al. 2004)

H_Mg

Mg solid solution strengthening constant

29.0 MPa wt%^2/3

(Myhr and Grong 2000; Myhr et al. 2001; Myhr et al. 2004)

H_Si

Si solid solution strengthening constant

66.3 MPa wt%^2/3

(Myhr and Grong 2000; Myhr et al. 2001; Myhr et al. 2004)

r_trans

Precipitate strength transition radius

3.044 nm

Mean radius of precipitates in PSD (Summers et al. 2014)

k_Γ

Line tension constant

0.40

σ _y in T6 state