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Theoretical study on cracking behavior in two-phase alloys Cr–Cr2X (X=Hf, Nb, Ta, Zr)

Intermetallics, 2001
To examine the importance of thermal expansion mismatch on cracking in two-phase Cr–Cr2X (X=Hf, Nb, Ta, Zr) alloys, we have calculated the coefficients of thermal expansion (CTE) of Cr and Laves-phase Cr2X alloys by local-density-functional approach. A Debye model is used to approximate the phonon contribution through the elastic acoustic response. The
Suklyun Hong, C.L. Fu
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Elastic Constants and Coefficients of Thermal Expansion of Laves Phase Cr₂X (X=Hf, Nb, Ta, Zr) Alloys

MRS Proceedings, 1998
ABSTRACTTo examine the effect of thermal expansion mismatch on cracking in two-phase Cr-Cr2X (X=Hf, Nb, Ta, Zr) alloys, we calculate the elastic constants and associated elastic anharmonicity by the local-density-functional approach from which the coefficients of thermal expansion (CTEs) of Cr and Cr2X are determined. The calculation shows that the CTE
Suklyun Hong, C. L. Fu
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