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Effect of Microstructure on Residual Stresses in Sintered Diamond–Metal Composites
Author(s) -
SelvaduraiLaßl U.,
Crostack H.A.,
Fischer G.,
Nellesen J.,
Tillmann W.,
Gathen M.,
Rothkirch A.
Publication year - 2009
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200800393
Subject(s) - materials science , residual stress , microstructure , diamond , synchrotron radiation , composite material , synchrotron , composite number , cobalt , diffraction , stress (linguistics) , metal matrix composite , metallurgy , optics , linguistics , philosophy , physics
As residual stresses can reduce the lifetime of diamond‐cobalt composite cutting tools, the composite stress state needs to be understood very well. Thus, the effect of microstructure on the residual stresses was investigated here. Stress measurements were carried out in the cobalt matrix by X‐ray diffraction (XRD) and Synchrotron‐XRD (SXRD). In addition to global stress measurements, investigations of stresses in small cobalt areas near the diamonds were performed by high brilliant synchrotron radiation using different apertures.