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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 719-720Developed Numerical Investigation into Residual...

Developed Numerical Investigation into Residual Stress by Vickers Instrumented Indentation Technique

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Abstract:

This research presents a developed simple analytical model to estimate the residual stress state and its magnitude in plasma sprayed coating based on the Vickers instrumented indentation results. By means of energy method during a Vickers indentation cycle, it is convenient to compute the stress state and its magnitude without any comparison of load-displacement curves of stress-free reference material. Computed results show that the residual stress in plasma sprayed Al-Si coating mainly ranges between 23-32 MPa in tensile state, which is consistent with the measurement of residual stress in as-sprayed NiCrAlY coating using neutron diffraction.

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Materials and Engineering Technology

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Periodical:

Applied Mechanics and Materials (Volumes 719-720)

Pages:

38-45

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.719-720.38

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Online since:

January 2015

Authors:

Yao Chen*, Wei Wei Liu, Fei Qi

Keywords:

Instrumented Indentation, Plasma Sprayed Coating, Residual Stress

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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