Results 261 to 270 of about 512,239 (311)

Strain rate sensitivity behavior of a structural steel during low-cycle fatigue investigated using indentation

Materials Science & Engineering: A, 2019
In this study, a series of experiments consisting of low-cycle fatigue, constant loading rate indentation, creep indentation experiments, optical microscopy examination, and transmission electron microscopy were performed to investigate the strain rate ...
Ngoc-Vinh Nguyen, Thai-Hoan Pham, Seung-Eock Kim   +2 more
semanticscholar   +1 more source

Grain size dependence of strain rate sensitivity in a single phase FCC high entropy alloy Al0.3CoCrFeNi

Materials Science & Engineering: A, 2018
High-entropy alloys (HEAs) can offer exceptional strain-rate sensitivity (SRS) due to high lattice-friction and strong solid-solution strengthening, and in some cases, low stacking fault energy. In this study, SRS of a single phase FCC HEA- Al0.3CoCrFeNi
S. Gangireddy, B. Gwalani, R. Mishra
semanticscholar   +1 more source

Limit strain predictions for strain-rate sensitive anisotropic sheets

International Journal of Mechanical Sciences, 1980
Abstract The combined effects of material strain-rate sensitivity and anisotropy on necking or “limit” strain predictions are examined for thin sheets with transversely isotropic properties. Various rate dependent constitutive laws based on flow theory and deformation theory of plasticity are considered.
Neale, K. W., Chater, E.
openaire   +1 more source

Influence of variation of strain rate sensitivity on limit strain of superplasticity

Scripta Metallurgica, 1987
Superplasticity is associated with large tensile elongation and high strain rate sensitivity. This paper analyzes theoretically the influence of variation of high strain rate sensitivity on necking and limit strain. Topics considered include metals, plasticity, strain rate, tensile properties, elongation, and sensitivity analysis.
Jianshe Lian, Bernard Baudelet
openaire   +1 more source

Strain hardening, strain rate sensitivity, and ductility of nanostructured metals

Materials Science and Engineering: A, 2004
This paper presents an overview of the strain hardening and strain rate hardening behavior of nanostructured and ultrafine-grained metals. The experimental findings obtained in our laboratory are summarized, with some recent data for ultrafine-grained Cu presented as a model case.
Y.M. Wang, E. Ma
openaire   +1 more source

Opposite grain size dependence of strain rate sensitivity of copper at low vs high strain rates

Materials Science & Engineering: A, 2018
The grain size dependence of the strain rate sensitivity (SRS) of copper were systematically investigated via tensile deformation at strain rates of ~10−4 s−1 and ~103 s−1.
Z. N. Mao, X. An, Xiaozhou Liao, J. Wang
semanticscholar   +1 more source

Strain rate sensitivity in commercial pure titanium: The competition between slip and deformation twinning

Materials Science & Engineering: A, 2018
Titanium alloys are widely used in light weight applications such as jet engine fans, where their mechanical performance under a range of loading regimes is important.
Qinmeng Luan, T. B. Britton, T. Jun
semanticscholar   +1 more source

Strain Hardening and Strain-Rate Sensitivity of an Extruded Magnesium Alloy

Journal of Materials Engineering and Performance, 2008
The strain-hardening behavior and strain-rate sensitivity of an extruded AZ31B magnesium alloy were determined at different strain rates between 10−2 and 10−5 s−1 in relation to the thickness of specimens (2.5 and 4.5 mm). Both the common approach and Lindholm’s approach were used to evaluate the strain-rate sensitivity. The yield strength (YS) and the
X.Z. Lin, D.L. Chen
openaire   +1 more source

Influence of Strain Rate, Temperature, Plastic Strain, and Microstructure on the Strain Rate Sensitivity of Automotive Sheet Steels

steel research international, 2012
AbstractThis work identifies the influence of strain rate, temperature, plastic strain, and microstructure on the strain rate sensitivity of automotive sheet steel grades in crash conditions. The strain rate sensitivity m has been determined by means of dynamic tensile tests in the strain rate range 10−3–200 s−1 and in the temperature range 233–373 K ...
Patrick Larour, Annette Bäumer, Kirsten Dahmen, Wolfgang Bleck   +3 more
openaire   +1 more source

Temperature dependence of strain rate sensitivity, indentation size effects and pile-up in polycrystalline tungsten from 25 to 950 °C

Materials & Design (1980-2015), 2018
Elevated temperature nanoindentation measurements were performed on polycrystalline tungsten to 950 °C under high vacuum conditions with very low thermal drift.
B. Beake, A. Harris, J. Moghal, D. Armstrong   +3 more
semanticscholar   +1 more source