Results 21 to 30 of about 12,791,122 (140)

Investigation on the Property Degradation of Nickel-Base Alloy 825 in High Pressure H2S Environments

open access: yesInternational Journal of Electrochemical Science, 2012
The effects of tensile rate and H2S pressure on the tensile property of nickel-base alloy 825 in wet H2S environments were investigated by the slow strain rate tensile test (SSRT) and scanning electron microscopy (SEM).
S.Q. Zheng   +4 more
doaj   +1 more source

Acoustic emission and fragment fractal characteristics of rock burst tendency coal samples under different strain rate loads

open access: yesGong-kuang zidonghua, 2023
At present, the correlation analysis between the acoustic emission characteristics of the rock failure process and the fractal characteristics of sample fragments has been carried out. Some achievements have been obtained.
LYU Pengfei   +3 more
doaj   +1 more source

Application of optical measurement techniques to high strain rate deformations in composite materials [PDF]

open access: yes, 2010
Traditionally high strain rate material characterisations have been conducted using strain gauges and/or cross head displacements in servo-hydraulic test machines, and force transducers in split Hopkinson bar experiments.
Syngellakis, Stavros   +8 more
core   +1 more source

Effects Of Anodic Protection On SCC Behavior Of X80 Pipeline Steel In High-pH Carbonate-Bicarbonate Solution

open access: yesArchives of Metallurgy and Materials, 2015
The potentiodynamic polarization test and slow strain rate tensile tests of X80 pipeline steel were performed in 0.5M Na2CO3-1M NaHCO3 solution to study the electrochemical and stress corrosion cracking properties.
Zhao W., Zou Y., Xia D.X., Zou Z.D.
doaj   +1 more source

Influence of Loading Rate on the Energy Evolution Characteristics of Rocks under Cyclic Loading and Unloading

open access: yesEnergies, 2020
To analyse the effect of loading rate on the energy evolution of rocks under cyclic loading and unloading, tests on saturated limestone were conducted at loading rates of 0.15, 0.2, and 0.3 mm/min, and the evolution characteristics of plastic, elastic ...
Jielin Li   +4 more
doaj   +1 more source

Effect of deformation microstructures on hydrogen embrittlement sensitivity and failure mechanism of 304 austenitic stainless steel: the significant role of rolling temperature

open access: yesJournal of Materials Research and Technology, 2022
Metastable austenitic stainless steels (ASSs) have excellent ductility but low strength, so that their usage as load-bearing components is significantly limited.
Hui-yun Zhang   +10 more
doaj   +1 more source

Investigation of Stress Corrosion Cracking in Magnesium Alloys by Quantitative Fractography Methods

open access: yesArchives of Metallurgy and Materials, 2017
The article shows that the use of quantitative fracture description may lead to significant progress in research on the phenomenon of stress corrosion cracking of the WE43 magnesium alloy. Tests were carried out on samples in air, and after hydrogenation
Sozańska M., Mościcki A., Chmiela B.
doaj   +1 more source

Cathodic and Anodic Stress Corrosion Cracking of a New High-Strength CrNiMnMoN Austenitic Stainless Steel

open access: yesMetals, 2020
A new high-nitrogen austenitic stainless steel with excellent mechanical properties was tested for its resistance to stress corrosion cracking. The new conventional produced hybrid CrNiMnMoN stainless steel combines the excellent mechanical properties of
Mathias Truschner   +3 more
doaj   +1 more source

Investigation of strain rate sensitivity of polymer matrix composites [PDF]

open access: yes, 2004
Includes bibliographical references (leaves 210-219)An investigation into high strain rate behaviour of polymer composites was performed by developing a finite element model for a fibre reinforced polymer (FRP) plates impacted at varying strain rates ...
Ochola, Robert O
core   +1 more source

Hydrogen embrittlement susceptibility of the X70 pipeline steel substrate and weld in simulated coal gas containing hydrogen environment

open access: yes工程科学学报, 2017
The diffusion and accumulation behaviour of hydrogen in X70 pipeline steel were investigated via hydrogen permeation test, hydrogen diffusion simulation, and hydrogen content test technology in a simulated coal gas environment (4 MPa total pressure, 0.2 ...
GUAN Hong-peng   +6 more
doaj   +1 more source

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