Results 21 to 30 of about 430,766 (349)

Strengthening of damping properties after initial plastic deformation: static and dynamic tests

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2023
The effect of the initial plastic deformation on the damping properties of low-carbon steel is experimentally studied, which corresponds to a change in the deformation diagram. The deformation diagram also refers to hysteresis loops that expand after the
Vladimir B. Zylev, Pavel O. Platnov
doaj   +1 more source

Heat Treatment and Dynamic Mechanical Analysis Strain Sweep Effects on the Phase Structure and Morphology of an Fe-28Mn-6Si-5Cr Shape Memory Alloy

open access: yesNanomaterials, 2023
Fe-Mn-Si-based shape memory alloys (SMAs) have been extensively investigated since 1982 for various useful properties that enhance the development of different applications such as anti-seismic dampers for very tall buildings, pipe joints, or rail ...
Mihai Popa   +7 more
doaj   +1 more source

Structural Effects of Heat Treatment Holding-Time on Dynamic and Damping Behaviour of an Fe-28Mn-6Si-5Cr Shape Memory Alloy

open access: yesThe Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2021
The paper reports the structural effects of holding time period, during heat treatment, on the dynamic and damping behavior of a Fe-28Mn-6Si-5Cr (mass. %) shape memory alloy.
Mihai POPA   +5 more
doaj   +1 more source

Influence of pectin hydration on internal friction and viscosity of their aqueous solutions

open access: yesНовые технологии, 2019
In the work the effect of hydration on the viscosity and internal friction of pectin solutions has been studied. The dynamic viscosity has been measured on a rotational viscometer, and internal friction on a torsion pendulum with a small vibration ...
Z. N. Khatko   +5 more
doaj   +1 more source

Internal friction evidence of phase transformations of Fe-Al elemental powders during sintering process

open access: yesMaterials Research Express, 2020
Internal friction combined with SEM, DSC and XRD measurements was first applied so far to investigate phase transformation behaviors of Fe-Al elemental powders.
Gangling Hao   +5 more
doaj   +1 more source

Internal friction in ferrous martensites

open access: yesMetallurgical Transactions A, 1975
Internal friction measurements were made at 1 Hz in the temperature range of 25 to 500°C on quenched, tempered and cold-worked Fe-Ni-C martensites. The alloys, which contained 15 to 30 wt pct Ni and 0.1 to 1.0 wt pct C, andM s temperatures
G. J. Klems   +3 more
openaire   +2 more sources

Looping dynamics of flexible chain with internal friction at different degree of compactness

open access: yes, 2015
Recently single molecule experiments have shown the importance of internal friction in biopolymer dynamics. Such studies also suggested that the internal friction although independent of solvent viscosity has strong dependence on denaturant concentration.
Chakrabarti, Rajarshi, Samanta, Nairhita
core   +2 more sources

A Discrete Four Stroke Quantum Heat Engine Exploring the Origin of Friction [PDF]

open access: yes, 2001
The optimal power performance of a first principle quantum heat engine model shows friction-like phenomena when the internal fluid Hamiltonian does not commute with the external control field. The model is based on interacting two-level-systems where the
E. Geva   +14 more
core   +2 more sources

One-dimensional model of turbulent flow of non-Newtonian drilling mud in non-prismatic channels

open access: yesJournal of Petroleum Exploration and Production Technology, 2019
One-dimensional model of non-Newtonian turbulent flow in a non-prismatic channel is challenging due to the difficulty of accurately accounting for flow properties in the 1-D model.
Prasanna Welahettige   +4 more
doaj   +1 more source

Magnetic non-contact friction from domain wall dynamics actuated by oscillatory mechanical motion [PDF]

open access: yes, 2019
Magnetic friction is a form of non-contact friction arising from the dissipation of energy in a magnet due to spin reorientation in a magnetic field.
Laurson, Lasse, Rissanen, Ilari
core   +2 more sources

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