Using a modified Knoop Indentation Technique to estimate the cavitation erosion resistance of NiTi

F. T. Cheng; P. Shi; Hau Chung Man

doi:10.1016/j.matchar.2004.04.006

Using a modified Knoop Indentation Technique to estimate the cavitation erosion resistance of NiTi

F. T. Cheng, P. Shi, Hau Chung Man

Research output: Journal article publication › Journal article › Academic research › peer-review

9 Citations (Scopus)

Abstract

An Ni-rich (50.8 at.% Ni) NiTi alloy was heat treated with different aging temperatures to obtain specimens possessing different cavitation erosion resistance. A modified Knoop Indentation Technique that combines indentation measurements and thermal recovery has been used to determine the total-recovery/deformation ratio for the heat-treated NiTi specimens. This ratio, which reflects both superelasticity and pseudoplasticity, has been found to correlate well with the cavitation erosion resistance for NiTi. The technique thus serves as a simple method for estimating the performance of NiTi against cavitation erosion.

Original language	English
Pages (from-to)	129-134
Number of pages	6
Journal	Materials Characterization
Volume	52
Issue number	2
DOIs	https://doi.org/10.1016/j.matchar.2004.04.006
Publication status	Published - 1 May 2004

Keywords

Cavitation erosion
Elastic properties
Hardness
Knoop Indentation
Metals and alloys
NiTi

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matchar.2004.04.006

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title = "Using a modified Knoop Indentation Technique to estimate the cavitation erosion resistance of NiTi",

abstract = "An Ni-rich (50.8 at.% Ni) NiTi alloy was heat treated with different aging temperatures to obtain specimens possessing different cavitation erosion resistance. A modified Knoop Indentation Technique that combines indentation measurements and thermal recovery has been used to determine the total-recovery/deformation ratio for the heat-treated NiTi specimens. This ratio, which reflects both superelasticity and pseudoplasticity, has been found to correlate well with the cavitation erosion resistance for NiTi. The technique thus serves as a simple method for estimating the performance of NiTi against cavitation erosion.",

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AB - An Ni-rich (50.8 at.% Ni) NiTi alloy was heat treated with different aging temperatures to obtain specimens possessing different cavitation erosion resistance. A modified Knoop Indentation Technique that combines indentation measurements and thermal recovery has been used to determine the total-recovery/deformation ratio for the heat-treated NiTi specimens. This ratio, which reflects both superelasticity and pseudoplasticity, has been found to correlate well with the cavitation erosion resistance for NiTi. The technique thus serves as a simple method for estimating the performance of NiTi against cavitation erosion.

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KW - Elastic properties

KW - Hardness

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KW - Metals and alloys

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JO - Materials Characterization

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ER -

Using a modified Knoop Indentation Technique to estimate the cavitation erosion resistance of NiTi

Abstract

Keywords

ASJC Scopus subject areas

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