Interface Strength in NiAl-Mo Composites from 3D X-ray Microdiffraction
Journal Article
·
· Scripta Materialia
- ORNL
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.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 1007819
- Journal Information:
- Scripta Materialia, Vol. 64, Issue 9; ISSN 1359-6462
- Country of Publication:
- United States
- Language:
- English
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