Open AccessDeformation-softening in ultrafine-grained materials
Author(s) -
Jenő Gubicza,
Nguyen Q. Chinh
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/903/1/012041
Subject(s) - softening , materials science , severe plastic deformation , nanocrystalline material , hardening (computing) , deformation (meteorology) , grain boundary , composite material , dislocation , metallurgy , stacking , grain size , microstructure , nanotechnology , layer (electronics) , physics , nuclear magnetic resonance
Plastic deformation is conventionally considered as a route for strengthening of metallic materials. During plastic straining, different crystal defects, such as dislocations, stacking faults and grain boundaries form, hardening the material. On the other hand, plastic deformation may also cause unexpected softening in ultrafine-grained and nanocrystalline materials. This paper summarizes the existing knowledge on this deformation-softening effect.