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DOE OSTI · 1007819

Interface Strength in NiAl-Mo Composites from 3D X-ray Microdiffraction

Barabash, Rozaliya·Bei, Hongbin·Gao, Yanfei·Ice, Gene E
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Abstract

The depth-dependent strain gradients near buried interfaces in a model system of NiAl-Mo composite were nondestructively probed with 3-D X-ray microdiffraction. Coupled with micromechanical analysis, our study shows that the relaxation of the residual thermal strains in the NiAl-Mo composites results in the formation of a near-surface 'slip zone' with large strain gradients in both the reinforcing Mo fibers and NiAl matrix. Based on these results an approach to calculate the fiber-matrix interface strength for composite materials is suggested.

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36 MATERIALS SCIENCECOMPOSITE MATERIALSFIBERSRELAXATIONSLIPSTRAINS

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Barabash, Rozaliya, Bei, Hongbin, Gao, Yanfei, Ice, Gene E. 2011-01-01. Interface Strength in NiAl-Mo Composites from 3D X-ray Microdiffraction. https://doi.org/10.1016/j.scriptamat.2011.01.028

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