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Elasticity mapping of precipitates in polycrystalline materials using atomic force acoustic microscopy

 
: Kumar, A.; Rabe, U.; Hirsekorn, S.; Arnold, W.

:
Fulltext urn:nbn:de:0011-n-760328 (284 KByte PDF)
MD5 Fingerprint: 73d30b7ce9ca881263ac53e777b428ce
Copyright AIP
Created on: 8.7.2008


Applied Physics Letters 92 (2008), No.18, Art. 183106, 3 pp.
ISSN: 0003-6951 (Print)
ISSN: 1077-3118
English
Journal Article, Electronic Publication
Fraunhofer IZFP ()
elastic property

Abstract
We determined the isotropic indentation modulus of precipitates in cubic materials by using the indentation modulus of the matrix as a reference. This eliminates major practical difficulty of repeatedly switching between a sample and a reference for measurement of indentation modulus using atomic force acoustic microscopy. The methodology has been demonstrated for mapping the elastic stiffness of ~500 nm sized M23C6 precipitates in alloy 625 and ferritic steel with a spatial resolution of ~50 nm.

: http://publica.fraunhofer.de/documents/N-76032.html