Table 3 ICRSS and the relative change compared with stoichiometric gamma TiAl.
From: First-principles study of the ternary effects on the plasticity of \(\upgamma \)-TiAl crystals
ICRSS (GPa) (%) | ORI → SISF (Forward dir.) | ORI → CSF (Inverse dir.) | ||||
|---|---|---|---|---|---|---|
\({\sigma }_{SISF}^{CRSS}\) | \({\sigma }_{Twin}^{CRSS}\) | \({\sigma }_{FSuper}^{CRSS}\) | \({\sigma }_{CSF}^{CRSS}\) | \({\sigma }_{Ordi}^{CRSS}\) | \({\sigma }_{ISuper}^{CRSS}\) | |
Ti12Al12 | 5.20 | 4.71 | 8.07 | 8.45 | 4.12 | 3.09 |
Ti11Al12Cr1 | 6.58 | 5.24 | 6.20 | 7.52 | 3.21 | 3.11 |
26.7% | 11.2% | − 23.2% | − 11.0% | − 22.2% | 0.59% | |
Ti11Al12Nb1 | 5.72 | 4.41 | 7.96 | 8.11 | 3.31 | 3.02 |
10.1% | − 6.42% | − 1.37% | − 3.95% | − 19.8% | − 2.16% | |
Ti11Al12V1 | 6.25 | 4.65 | 8.34 | 8.07 | 4.03 | 3.09 |
20.3% | − 1.23% | 3.35% | − 4.49% | − 2.18% | 0.01% | |
Ti12Al11Cr1 | 3.60 | 3.18 | 7.35 | 8.33 | 3.39 | 2.57 |
− 30.8% | − 32.4% | − 8.96% | − 1.43% | − 17.7% | − 16.9% | |
Ti12Al11Nb1 | 2.75 | 1.91 | 6.31 | 8.83 | 3.18 | 3.03 |
− 47.2% | − 59.5% | − 21.9% | 4.50% | − 23.0% | − 2.09% | |
Ti12Al11V1 | 3.47 | 3.08 | 7.40 | 8.12 | 3.63 | 2.66 |
− 33.2% | − 34.5% | − 8.31% | − 3.90% | − 11.9% | − 14.1% | |
