Determination of elastic modulus in a nickel alloy from ultrasonic measurements

Parveen, Nikhat; Murthy, G V S

doi:10.1007/s12034-011-0070-z

Cited by 26 publications

(13 citation statements)

References 7 publications

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“…In this study the E r value of the as-cast and melt-spun samples was found to be 56.82 and 70.50 GPa, respectively. However, the highest E r value in the heat-treated melt-spun samples was found to be 97.28 GPa at 900 8C, which is close to that reported by Parveen et al [40] and Kumar et al [41].…”

Section: Phase Identification and Thermal Properties Of Ni-23al Alloyssupporting

confidence: 89%

Influences of high temperature on the microstructural, electrical and mechanical properties of Ni-23 wt.% Al alloy

Karaköse

Keskín

2015

International Journal of Materials Research

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Influences of high temperature on the microstructural, electrical and mechanical properties of Ni-23 wt.% Al alloyThe microstructural, electrical and mechanical characteristics of conventionally and rapidly solidified Ni-23 wt.% Al alloys after heat treatments were investigated. The microstructures of Ni-23Al alloys were examined by means of scanning electron microscopy and the phase composition was identified using X-ray diffraction analysis. The phase transitions during the solidification process were investigated using differential thermal analysis under an Ar atmosphere. X-ray diffraction analysis indicated that the Ni-23Al samples showed an intermetallic c'-Ni 3 Al phase, and we observed the intermetallic c'-Ni 3 Al phase together with the b-NiAl phase after heat treatment at 700 -900 8C for 24 h. We performed electrical resistivity measurements by using the four-point probe technique in the temperature range 100 -900 8C. The resistivity of Ni-23 wt.% Al samples increases linearly with temperature. Vickers microindentation tests were carried out on the heat-treated samples with loads ranging from 392.26 mN to 1 174.86 mN at room temperature. We found that the microhardness and effective elastic modulus values increased with increasing temperature and these values showed peak load dependence. The tensile and compressive stress values of the Ni-Al alloys also decreased with increasing temperature. E. Karaköse, M. Keskin: Influences of high temperature on the properties of Ni-23 wt.% Al alloy Int.E. Karaköse, M. Keskin: Influences of high temperature on the properties of Ni-23 wt.% Al alloy

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Section: Phase Identification and Thermal Properties Of Ni-23al Alloyssupporting

confidence: 89%

Influences of high temperature on the microstructural, electrical and mechanical properties of Ni-23 wt.% Al alloy

Karaköse

Keskín

2015

International Journal of Materials Research

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“…Longitudinal v L and transverse v T velocities of ultrasonic waves obtained and bulk volumetric mass density d were used to calculate the following quantities [70,29,71]:…”

Section: Resultsmentioning

confidence: 99%

Mechanical properties and structure of rapidly solidified bulk Fe89−xHf4Ta1Cu1Gd1SixB4 (x=0–15) and Fe74Hf4Ta1Cu1Gd1LaySi15−yB4 (y=7) alloys

Bardziński

Błyskun

2016

Materials & Design

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“…For determining the elastic modulus, Eqs. have been used, where V t and V l are the velocities of the transverse and the longitudinal ultrasonic waves

G = ρ V_{t}^{2}

B = ρ (V_{1}^{2} - 4 / 3 V_{t}^{2})

E = 3 ρ V_{t}^{2} false(V_{1}^{2} - 4 false/ 3 V_{normalt}^{2} false) / false(V_{1}^{2} - V_{normalt}^{2} false)

…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Boron Carbide by Reactive‐Pulsed Electric Current Sintering in the Presence of Tungsten Boride

Radev

Avramova

Kovacheva

et al. 2016

Int J Applied Ceramic Tech

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The method of pulsed electric current sintering (PECS) has been used to obtain dense boron carbide (B4C) and B4C‐based composite materials containing tungsten boride (W2B5). To elucidate the role of the sintering additives and the mechanism of reactive densification, three types of materials have been obtained by PECS at 1850°C and 1900°C: “pure” B4C, B4C doped with 10 wt% W2B5, and B4C doped with 10 wt% tungsten carbide (WC). X‐ray diffraction and X‐ray photoelectron spectroscopy have been used to determine crystallite size, phase changes, and the peculiarities of the chemical bonds of the densified materials. Structural and mechanical properties of the materials have been investigated using scanning electron microscopy, optical microscopy, ultrasound velocity measurements, and hardness tests. The electrochemical impedance spectra have been used to investigate the electrical properties of the PECS‐ed materials.

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Determination of elastic modulus in a nickel alloy from ultrasonic measurements

Cited by 26 publications

References 7 publications

Influences of high temperature on the microstructural, electrical and mechanical properties of Ni-23 wt.% Al alloy

Influences of high temperature on the microstructural, electrical and mechanical properties of Ni-23 wt.% Al alloy

Mechanical properties and structure of rapidly solidified bulk Fe89−xHf4Ta1Cu1Gd1SixB4 (x=0–15) and Fe74Hf4Ta1Cu1Gd1LaySi15−yB4 (y=7) alloys

Synthesis of Boron Carbide by Reactive‐Pulsed Electric Current Sintering in the Presence of Tungsten Boride

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