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The compressive creep behaviour of as cast Mg214Li21 . 3Al (wt-%) alloy was investigated in the temperature range of 20285uC and under different compressive stress in the range of 37 . 3-74 . 6 MPa with special apparatus. Primary creep deformation and steady creep rate increase with temperature and applied stress. The compressive creep behaviour obeys an empirical equation ln t5C2nln szQ/RT, where t is the time to a selected creep strain, s is the applied stress, T is the absolute temperature, R is the gas constant, and C, n, and Q are constants for the experimental alloy. The average values of the exponent n and the creep activation energy Q are 4 . 33 and 101 . 13 kJ mol 21 respectively. The creep rate controlling mechanism is the dislocation climb and the lattice diffusion of Li in the experimental alloy under the testing conditions.

Compressive creep tests have been carried out on Mg-14Li-Al-MgO/Mg 2 Si composites containing about 0, 5, 10 and 15 vol.-%MgO/Mg 2 Si particulates in the temperature range of 100-190uC and under different pressures in the range of 40-70 MPa. The results reveal that the creep resistance of the particulate composites is increased with increasing content of MgO/Mg 2 Si particulate. After the addition of SiO 2 , considerable improvement of creep resistance can be achieved in Mg-14Li-Al-MgO/Mg 2 Si composites. The creep data for these composites could be correlated using an empirical equation é s 5As n exp (2Q/RT) where n is 7 . 38-9 . 42 and Q is about 109 . 9-135 . 2 kJ mol 21 . The compressive creep rate is controlled by the diffusion of Li and the dislocation climb based on the results of the present study.

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New ternary gold alloys with low resistivities (1) were screened out via an interpretable machine learning strategy by using the support vector regression (SVR) model integrated with SHAP analysis. The correlation coefficient (R) and the root mean square error (RMSE) of test set were 0.876 and 0.302, respectively, indicating the strong generalization ability of the model. The average 1 of top 10 candidates was 1.22 × 10 À 7 Ω m, which was 41% lower than the known minimum of 2.08 × 10 À 7 Ω m. The outputs of SVR model were analyzed with the critical SHAP values including first ionization energy of C-site (584 kJ • mol À 1 ), electronegativity of Csite (1.72) and the second ionization energy of B-site (1135 kJ • mol À 1 ), respectively. Moreover, an online web server was developed to share the model at http://materials-datamining.com/onlineservers/wxdaualloy.