The bio-ceramic coatings on metallic implants are proposed to be a solution for combining the mechanical properties of the metal with the necessarily bioactive character of the ceramic layer, leading to a better integration of the entire implant. In this paper, the determination of residual stresses
Comparison of residual stress in martensitic alloys by nondestructive techniques
β Scribed by A.K. Roy; S. Bandyopadhyay; S.B. Suresh; D. Wells
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 796 KB
- Volume
- 419
- Category
- Article
- ISSN
- 0921-5093
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β¦ Synopsis
Three martensitic materials, namely Alloys EP-823, HT-9 and 422 were subjected to tensile loading at ambient temperature. The cylindrical specimens tested at different levels of tensile loading were analyzed for characterization of residual stress resulting from plastic deformation corresponding to the applied loads between the yield strength and the ultimate tensile strength. The extent of residual stress developed at these applied stresses was analyzed by nondestructive positron annihilation spectroscopy, activation, and neutron diffraction techniques. The results indicate that the residual stresses characterized by all three techniques exhibited a consistent pattern showing a gradual enhancement in residual stress with increasing applied load.
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