Results 1 to 10 of about 22,871 (266)

Hardened material properties of self‐compacting concrete

open access: yesJournal of Civil Engineering and Management, 2004
Self‐compacting concrete (SCC) is an innovative construction material with a favourable rheological behaviour, which is caused by its modified concrete composition.
Klaus Holschemacher
doaj   +2 more sources

The influence of the alloying of the auger by the chromium on its wear during dehydration process of municipal solid waste in the garbage truck

open access: yesПроблеми трибології, 2022
The article is dedicated to the study of the influence of the alloying of the auger by the chromium on its wear during dehydration of solid waste in the garbage truck.
O.V. Bereziuk   +2 more
doaj   +1 more source

Hydrogen Absorption during Case Hardening of Steels EN20MnCr5 (SAE5120) and EN18CrNiMo7-6 (SAE4820)

open access: yesMetals, 2021
Damages to case-hardened components are often associated with the phenomenon of hydrogen embrittlement due to their specific fracture pattern. In the present work, the effects of the case hardening process on the hydrogen content in the material were ...
Matthias Castens   +5 more
doaj   +1 more source

Wear behavior of composite strengthened gray cast iron by austempering and laser hardening treatment

open access: yesJournal of Materials Research and Technology, 2020
The present study mainly investigated the phase transformation and wear performance of laser hardened austempered gray cast iron specimens. Ball-on-Plate reciprocating sliding wear tests with PAO4 base oil were carried out on untreated, quench-tempered ...
Bingxu Wang   +5 more
doaj   +1 more source

Wear Performance of a Laser Surface Hardened ASTM 4118 Steel [PDF]

open access: yesEngineering and Technology Journal, 2013
In this investigation ASTM 4118 steel was treated by using pulse Nd: YAG laser with wave length 1064nm and pulse duration 100ns. In order to assess the new tribological properties of laser surface hardened ASTM 4118 steel, the wear resistance between ...
Assifa M. Mohamad
doaj   +1 more source

Specifics of physico-mechanical characteristics of thermally-hardened rebar

open access: yesProduction Engineering Archives, 2022
Thermal hardening is widely used nowadays for modification of steel bar properties and obtaining effective reinforcing material. Strength and deformation characteristics of thermally hardened reinforcement is the complex indicator of reinforcement ...
Kopiika Nadiia   +2 more
doaj   +1 more source

On the hardening and softening of nanocrystalline materials [PDF]

open access: yesNanostructured Materials, 1993
Nanocrystalline Pd and Cu samples have been thermally treated to determine whether the relation between hardness and grain size depend on the method used to vary the grain sizes. Previous reports indicate that hardening with decreasing grain size resulted from data obtained using individual samples, while softening with decreasing grain size resulted ...
Fougere, G. E.   +2 more
openaire   +1 more source

Analysis of dislocation density in strain-hardened alloy 690 using scanning transmission electron microscopy and its effect on the PWSCC growth behavior

open access: yesNuclear Engineering and Technology, 2021
The dislocation density in strain-hardened Alloy 690 was analyzed using scanning transmission electron microscopy (STEM) to study the relationship between the local plastic strain and susceptibility to primary water stress corrosion cracking (PWSCC) in ...
Sung-Woo Kim   +2 more
doaj   +1 more source

The effects of pumping on the air content and void structure of air-entrained, wet mix fibre reinforced shotcrete

open access: yesCase Studies in Construction Materials, 2019
The air content and void structure of hardened shotcrete is essential for its durability and resistance against freeze thaw damage. However, producing a mix which is pumpable, shootable, and also meets durability requirements is not always easy.
S. Talukdar, R. Heere
doaj   +1 more source

The influence of the chemical composition of the hardened auger on its wear during dehydration process of municipal solid waste in the garbage truck

open access: yesПроблеми трибології, 2022
The article is dedicated to the study of the influence of the chemical composition of the hardened auger by the chromium on its wear during dehydration of solid waste in the garbage truck.
O.V. Bereziuk   +2 more
doaj   +1 more source

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