Fig. 1 Age-hardening curve of the as-extruded TiP/VW94 composites aged at 200 °C

Fig. 2 TEM images and corresponding EDS element analysis of Ti/Mg interface in as-extruded 5%TiP/VW94 composite aged for 50 h: a, b TEM images, c line scanning results of the green line in b, and corresponding EDS maps of d Mg, e Gd, f Y, g Ti, h Mn, i Zn

Fig. 3 TEM observations of as-extruded 5%TiP/VW94 composite aged for 50 h: a TEM images, b SAED pattern of the intermetallic compound, c HRTEM of the Ti/Mg interface, d corresponding FFT pattern

Fig. 4 TEM images of as-extruded VW94 alloy and 5%TiP/VW94 composite aged for 50 h: a-d VW94 alloy, e-h 5%TiP/VW94 composite. a, e IPF images, b, f KAM images, c, g images of the precipitates and corresponding SAED pattern, d, h highlighted β' phase