Residual stress determination in plasma sprayed Al₂O₃ coatings
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Residual stress is a problem which could reduce the lifetime of plasma sprayed coatings. So it is necessary to find the relationship between plasma spray parameters and residual stress. In this study, a plasma spraying technique was used to deposit Al2O3 coatings on stainless steel substrates under different spraying parameters. The residual stresses were determined by an X-ray diffraction method. Furthermore, surface roughness and porosity of the plasma sprayed Al2O3 coatings were measured.
Abstract
Residual stress is a problem which could reduce the lifetime of plasma sprayed coatings. So it is necessary to find the relationship between plasma spray parameters and residual stress. In this study, a plasma spraying technique was used to deposit Al2O3 coatings on stainless steel substrates under different spraying parameters. The residual stresses were determined by an X-ray diffraction method. Furthermore, surface roughness and porosity of the plasma sprayed Al2O3 coatings were measured.
참고문헌 (4)
- C.C. Berndt, "Thermal Spray Technology,ASM Handbook" (2004), ASM International
- M.R. James, "Quantitative Nondestructive Measurements of Residual Stresses, CRC, Critical Reviews in Solid State and Materials" (1980), Sciences
- B.D. Cullity, "Elements of X-ray Diffraction", Addison Wesley Massachusetts (2001)
- J.F. Li, , Thin Solid Films, 460, pp.101~105 (2004)