2011
DOI: 10.1557/jmr.2011.259
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Application of spherical nanoindentation to determine the pressure of cavitation impacts from pitting tests

Abstract: This article focuses on the use of spherical nanoindentation measurements to estimate the pressure of cavitation impacts and its statistical distribution. Indeed, nanoindentation techniques are supposed to represent an effective tool in this field due to the similarities between substrate deformation under liquid impact and indentation testing. First, nanoindentation experiments were used to extract the mechanical parameters of a Nickel-Aluminum-Bronze alloy; second, pitting tests were performed at different o… Show more

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Cited by 32 publications
(22 citation statements)
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“…Although relative comparisons of impact load spectra appear quite satisfactory, the absolute values of impact loads still remain to be confirmed. In particular, it turned out that the present measurements do not corroborate the values of impact loads derived from an analysis of pitting tests using conventional nanoindentation tests at small strain rate [14]. Further investigations are then needed to consolidate the measured values of impact loads.…”
Section: Resultscontrasting
confidence: 69%
See 1 more Smart Citation
“…Although relative comparisons of impact load spectra appear quite satisfactory, the absolute values of impact loads still remain to be confirmed. In particular, it turned out that the present measurements do not corroborate the values of impact loads derived from an analysis of pitting tests using conventional nanoindentation tests at small strain rate [14]. Further investigations are then needed to consolidate the measured values of impact loads.…”
Section: Resultscontrasting
confidence: 69%
“…On the other hand, Carnelli et al [14] estimated the impact loads from joint pitting and nanoindentation tests and found maximum values much smaller of the order of 20 N for the same experimental device as the one used here. Hattori et al [15] measured impact loads in a cavitating liquid jet test chamber (ASTM G134-95 standard) at flow velocities up to 184 m/s and obtained a maximum value of 20 N, too.…”
Section: Discussionmentioning
confidence: 75%
“…Near zero strain, the average slope of these curves are obtained and compared with the literature values of the static modulus of elasticity in Table 2. The moduli of elasticity deduced from the slope of the stress-strain curves from the SHPB were comparable to the static values from the literature and from nano-indentor measurements conducted at EPFL [36,37].…”
Section: Materials Testedsupporting
confidence: 75%
“…Then, it can reasonably be expected that the loading conditions be derived from the geometry of the pit and the material properties. Such a technique has been used by [12,13]. The authors have taken advantage of the similarity between a cavitation erosion pit and a spherical nanoindentation to estimate the amplitude of the pressure pulse responsible for a cavitation pit.…”
mentioning
confidence: 99%