Accession Number:

ADA426384

Title:

Tension/Compression Strength Asymmetry in a Simulated Nanocrystalline Metal

Descriptive Note:

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE

Personal Author(s):

Report Date:

2004-01-02

Pagination or Media Count:

5.0

Abstract:

We explore asymmetries in the plastic flow of idealized nanocrystalline nickel through static molecular simulations, We find that both the yield and flow stresses of these materials are higher in compression than in tension. This result is discussed in the context of earlier work on metallic glasses, and it is suggested that very similar atomic-level mechanisms control yield in both of these materials classes.

Subject Categories:

  • Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE