Open AccessПрименение изотермической осадки для мегапластической деформации beta-сплавов Cu-Al-Ni
Author(s) -
А. Э. Свирид,
А. В. Лукьянов,
V. G. Pushin,
Н. Н. Куранова,
В. В. Макаров,
А. В. Пушин,
А. Н. Уксусников
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2020.07.49441.183-19
Subject(s) - materials science , isothermal process , alloy , transmission electron microscopy , composite material , recrystallization (geology) , ductility (earth science) , scanning electron microscope , metallurgy , thermodynamics , creep , paleontology , physics , biology , nanotechnology
Plastic deformation of the Cu – 14 mass.% Al − 4 mass.% Ni alloy with shape memory effectwere used by uniaxial compression (upset), controlled by measurements of the strain rate,applied stress and compression ratio of standard samples under isothermal conditions intemperature range 400–600 ° C. Optical, scanning and transmission electron microscopy and X-ray phase methods analysis where used in the study of changes in the structure of the alloy subjected to mechanical tests. It was found that effects of significant refinement of the grain structure (from 1 mm to 100 μm) andsimultaneous increase in strength and ductility due to the process of dynamic recrystallization.