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The strategy of oxide-dispersion strengthening has recently been applied to intermetallic compounds in order to improve their creep resistance at high temperatures. In this paper, we describe selected results of an extensive transmission electron microscopy (TEM) study of the dislocation structures and the particle/dislocation configurations in Oxide-dispersion strengthed (ODS) NiAl, Ni 3 ...
Dispersion strengthening has been applied recently to several intermetallic compounds, which otherwise suffer from insufficient creep strength at high temperatures. In this paper an overview is given of new theoretical aspects concerning the interaction between lattice dislocations and dispersoids. Particular complications arise when the dislocations are, due to the atomic order in the matrix, dissociated...
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