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Spherical indentation hardness of shape memory alloys

journal contribution
posted on 2006-06-01, 00:00 authored by W Yan, Q Sun, H Y Liu
Using dimensional analysis and the finite element method, the spherical indentation hardness of shape memory alloys (SMAs) is investigated. The scaling relationship between the hardness and the mechanical properties of a SMA, such as the forward transformation stress, the maximum transformation strain magnitude, has been derived. Numerical results demonstrated that the hardness increases with the indentation depth but there is no three-fold relationship between the hardness and the forward transformation stress. Increasing the maximum transformation strain magnitude would reduce the hardness of the material. These research results enhance our understanding of the hardness from the spherical indentation of SMAs.

History

Journal

Materials science & engineering. A, Structural materials

Volume

425

Issue

1-2

Pagination

278 - 285

Publisher

Elsevier, SA

Location

Lausanne, Switzerland

ISSN

0921-5093

eISSN

1873-4936

Language

eng

Notes

Available online 5 May 2006.

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2006, Elsevier B.V.

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