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|Title:||Use of neutron diffraction for stress measurements in thin and thick thermal sprayed coatings|
|Citation:||Luzin, V., Prask, H. J., Gnaupel-Herold, T., & Sampath, S. (2010). Use of neutron diffraction for stress measurements in thin and thick thermal sprayed coatings. International Heat Treatment & Surface Engineering, 4(1), 17-24. doi:10.1179/174951410X12572442577426|
|Abstract:||Thermal spraying is a widely used and cost effective technique for the surface protection of engineering components. The spectrum of applications is vast: corrosion protection, wear resistance and abrasion resistance, thermal barriers, electrical (dielectric) coatings, etc. Process induced residual stress has long been recognised as an important factor influencing the integrity and overall performance of coatings. Residual stress generation during thermal spraying is a complex phenomenon. Significant efforts have been made to improve understanding of the evolution of residual stresses during deposition and to develop practical models for numerical prediction of stress distributions in coatings. Owing to the high penetrating power of neutrons and spatial resolution in the millimetre and submillimetre range, neutron diffraction is, perhaps, the most versatile method for stress determination, and has been used extensively for experimental validation of theoretical predictions. Examples of neutron diffraction residual stress results are presented to illustrate the capabilities of the technique: a thin (∼0·3 mm) Mo/Mo2C composite HVOF coating, several examples of millimetre thick ceramic and metallic coatings, and thick coatings (∼10 mm) of iron made by spray forming. © 2010, Maney Publishing|
|Gov't Doc #:||2287|
|Appears in Collections:||Journal Articles|
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