Results 1 to 10 of about 43,129 (268)

Hot Ductility of TiNb IF Steel Slab after Hot Torsion Testing [PDF]

open access: yesMetals, 2019
The aim of the work was to evaluate the hot ductility loss in TiNb stabilized IF steel directly from the continuously-cast slab using hot torsion testing (plastometry) in the temperature range 600−1250 °C according to the basic programme, and ...
Jana Konrádyová   +10 more
doaj   +3 more sources

Study of Resistance to Helium Swelling of Lithium-Containing Ceramics under High-Temperature Irradiation

open access: yesCrystals, 2021
The aim of this work was to study resistance to helium accumulation processes in the structure of the surface layer of lithium-containing ceramics and the subsequent destruction and embrittlement processes, depending on radiation fluence.
Dmitriy I. Shlimas   +4 more
doaj   +1 more source

Effect of Dislocation Slip Mechanism under the Control of Oxygen Concentration in Alpha-Case on Strength and Ductility of TC4 Alloy

open access: yesMetals, 2021
The oxygen diffusion layer (alpha-case) is generally considered to have a negative impact on the mechanical properties and applications of titanium alloys.
Xin Feng   +3 more
doaj   +1 more source

Cold resistance of steel beam prestressed by wall drawing

open access: yesВестник СибАДИ, 2023
Introduction. The purpose of the article is a generalized analysis of existing methods for determining of structural steel elements behaviour in extreme conditions of subzero temperatures and their use to assess the cold resistance of steel beams ...
E. V. Kravchuk   +2 more
doaj   +1 more source

Long-Term Embrittlement of Ancient Copper and Silver Alloys

open access: yesHeritage, 2021
The manifestations of ancient metals’ embrittlement, cracking and fracture, are challenging problems for restorers and conservators, yet the scientific understanding of these problems is limited.
Omid Oudbashi, Russell Wanhill
doaj   +1 more source

Corrosion Behavior of Ancient White Cast Iron Artifacts from Marine Excavations at Atmospheric Condition

open access: yesMetals, 2022
A large number of iron pot artifacts were excavated from the “Nanhai I” shipwreck. The rapid embrittlement and pulverization of these objects (that have a good matrix) in the atmospheric environment is worthy of attention.
Pei Hu   +6 more
doaj   +1 more source

HYDROGEN PERMEABILITY THROUGH TANTALUM ALLOYS ALLOWED WITH Nb AND W

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020
An analysis of studies of membrane alloys Ta77Nb23 and Ta94,9W5,1 was carried out with an estimation of their characteristics – thermal stability, strength – by measuring microhardness, matrix structure – by X-ray analysis, as well as the dynamics of ...
R.M. Belyakova, V.A. Polukhin
doaj   +1 more source

Workhardening behaviour and microstructural analysis of failed austenitic manganese steel crusher jaws [PDF]

open access: yesMaterials Research, 2013
This study focussed on the work hardening behaviour and microstructure of austenitic manganese steel relative to premature failure of crusher jaws. Samples of sound and failed crusher jaws were taken, the change with depth from the working surface to the
J. O. Olawale   +2 more
doaj   +1 more source

ANALYSIS OF Nb – Ni AND V – Ni BASED MEMBRANE CHARACTERISTICS

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
To obtain ultrapure hydrogen by membrane technology, instead of expensive membranes made of Pd alloys, cheaper ones based on metals (Nb-Ni) and (V-Ni) are considered.
R.M. Belyakova   +2 more
doaj   +1 more source

Green Energy Revolution and Substitution of Hydrocarbons with Hydrogen: Distribution Network Infrastructure Materials

open access: yesEnergies, 2023
Global warming is an accepted fact of life on Earth, posing grave consequences in the form of weather patterns with life-threatening outcomes for inhabitants and their cultures, especially those of island countries.
Reza Ghomashchi
doaj   +1 more source

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