A New Method for Assessment of Residual Stresses in Reinforced Surface Layers

A New Method for Assessment of Residual Stresses in Reinforced Surface Layers

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Measurements of residual stresses within hard surface layers are usually performed using X-ray, magnetic or mechanical methods. The X-ray diffraction strain measurement has limitations as the usual bulk and complexity of the equipment which can preclude field application. A rather simple applicability of magnetic methods is severely counterbalanced by complicated assessments of stress gradients throughout the layer and their restriction to ferromagnetic materials. Classical mechanical methods as Hole-Drilling or Layer-Removal are based on cumbersome destructive procedures and difficult measurements of the related displacements.

Measurements of residual stresses within hard surface layers are usually performed using X-ray, magnetic or mechanical methods. The X-ray diffraction strain measurement has limitations as the usual bulk and complexity of the equipment which can preclude field application. A rather simple applicability of magnetic methods is severely counterbalanced by complicated assessments of stress gradients throughout the layer and their restriction to ferromagnetic materials. Classical mechanical methods as Hole-Drilling or Layer-Removal are based on cumbersome destructive procedures and difficult measurements of the related displacements.

residual stress, surface layer, fish-eye

residual stress, surface layer, fish-eye

POKLUDA, J.; KIANICOVÁ, M.

2012

20.06.2011

Stresstech

Vaajakoski

978-952-67247-4-4

Proceedings of the 9th International Conference on Barkhausen Noise and Micromagnetic Testing

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02_1

02_6

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