Fig. 1. The thermal expansion phase structure of the dual-phase alloys.
a The dilatometer thermal expansion behavior of LaFe0.939xCo0.061xSi0.0583x (x = 37.5, 47.5, 57.5, and 67.5, labeled as S−1, S-2, S-3, and S-4, respectively). b The dilatometer thermal expansion performance of S-3 (ZTE composition) alloy along loading direction (LD), transverse direction (TD), and normal direction (ND), respectively. c The synchrotron X-ray diffraction profiles of the as-cast samples (S−1, S-2, S-3, and S-4), and the Bragg positions of the L and α phase are marked by blue and red vertical bars separately. Inserted the phase content (wt %) of L and α phases was determined by SXRD. d Crystal structures of L and α phase. e The EBSD inverse pole figure (IPFZ) and the neutron pole figure of the typical (hkl) reflections of the S-3 alloy, respectively.