The Cyclic Deformation Behavior of Mg—Y2O3 Nanocomposites-Reference-Cited by-同舟云学术

The Cyclic Deformation Behavior of Mg—Y2O3 Nanocomposites

Published:2008-10 Issue:19 Volume:42 Page:2039-2050
ISSN:0021-9983
Container-title:Journal of Composite Materials
language:en
Short-container-title:Journal of Composite Materials

Author:

Goh C.S.¹,Gupta M.²,Wei J.³,Lee L.C.³

Affiliation:

1. Department of Mechanical Engineering, National University of Singapore 9 Engineering Drive 1, Singapore 117576,

2. Department of Mechanical Engineering, National University of Singapore 9 Engineering Drive 1, Singapore 117576

3. Singapore Institute of Manufacturing Technology 71 Nanyang Drive, Singapore 638075

Abstract

Constant stress amplitude cyclic tests were conducted on monolithic Mg and Mg reinforced with 0.5, 1, and 2vol% of nano-size Y2O 3. The cyclic life of the monolithic Mg and its nanocomposites were found to be comparable at the three stress amplitudes tested. Hardening behavior is observed throughout the whole fatigue life of all the specimens tested. Forest dislocations observed in Mg and Mg nanocomposites are responsible for the cyclic hardening. Addition of nanoparticles provides additional strengthening sources that cause the Mg—Y2O3 nanocomposites to harden more intensely that monolithic Mg.

Publisher

SAGE Publications

Subject

Materials Chemistry,Mechanical Engineering,Mechanics of Materials,Ceramics and Composites

Link

http://journals.sagepub.com/doi/pdf/10.1177/0021998308094544

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