Iterative inversion method for eddy current profiling of near-surface residual stress in surface-treated metals

2006 ◽  
Vol 39 (8) ◽  
pp. 641-651 ◽  
Author(s):  
Bassam A. Abu-Nabah ◽  
Peter B. Nagy
Keyword(s):  
Residual Stress ◽  
Eddy Current ◽  
Inversion Method ◽  
Surface Residual Stress ◽  
Near Surface ◽  
Iterative Inversion

Residual Stress Depth Profiling on Ground and on Polished Surfaces of an Al2O3/SiC(w) Composite

1995 ◽  
Vol 39 ◽  
pp. 371-380
Author(s):  
X. Zhu ◽  
P. Predecki ◽  
M. Eatough ◽  
R. Goebner
Keyword(s):  
Residual Stress ◽  
Depth Profiling ◽  
Grazing Incidence ◽  
Inversion Method ◽  
Laplace Method ◽  
X Ray Diffraction ◽  
Surface Residual Stress ◽  
Near Surface ◽  
X Ray ◽  
Stress Components

This study uses the asymmetric grazing incidence x-ray diffraction (GIXD) method and related z-profile retrieval techniques to study the near surface residual stress depth proflles on ground and on polished surfaces of hot-pressed Al2O2SiC(w) composite specimen. The z-profiles of stress components σ11, σ22 and σ33 of the Al2O3 matrix were obtained by using the numerical inversion method as well as the inverse Laplace method. Both τ- and z-profiles of residual stresses are presented.

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