Correlation Between Defect Structure and Mechanical Properties of Nanocrystalline Materials
Abstract
The defect-related mechanical properties of nanomaterials are overviewed. The influence of small grain size on plastic deformation mechanisms, strength, and ductility is discussed. The smaller the grain size in face-centered cubic metals, the higher the activity of twinning at the expense of dislocation glide, while hexagonal close-packed (hcp) materials behave contrarily. The relationship between the dislocation structure and the yield strength is studied in details. Above the grain size of ∼20 nm, the decrease of grain size is accompanied by an increase of yield strength and a decrease of ductility. The loss of ductility can be moderated ...
Get Defect Structure and Properties of Nanomaterials, 2nd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
