Article ID Journal Published Year Pages File Type
7979907 Materials Science and Engineering: A 2014 7 Pages PDF
Abstract
Different size effects and deformation mechanisms are revealed in α-titanium (Ti) single crystal nanopillars orientated for [112̄0] and [0001] based on molecular dynamics simulations. The strength-size relationship changes from “smaller is stronger” to “smaller is much weaker” when the width of nanopillars reduces from 19 nm to 3 nm. The “smaller is much weaker” is attributed to that the surface effect caused by a thermal vibration of surface atoms leads to the initiation and growth of surface dislocations.
Related Topics
Physical Sciences and Engineering Materials Science Materials Science (General)
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