Effect of the Magnitude of Long-Range Atomic Order and the Size of Antiphase Domains on the Grain Structure and Special Grain Boundary Parameters in L1_2-Superstructure Alloys

摘要

It is found means of X-ray structural analysis, transmission electron microscopy, scanning electron microscopy combined with electron backscatter diffraction, and optical metallography that the reduction of the integral magnitude of the long-range atomic order in Ni_3Mn and Pd_3Fe L1_2-superstucture alloys ordered through the A1 + L1_2 two-phase region is accompanied by antiphase domains coarsening and grains fining.