Results 41 to 50 of about 111,808 (361)

Features of the Surface and Subsurface Waves Application for Ultrasonic Evaluation of Physicomechanical Properties of Solids. Part 2. Strenghtned Inhomogeneous Surface Layer

open access: yesПриборы и методы измерений, 2019
The propagation of a pulsed signal of a surface wave over an object with a non-uniform surface layer, obtained, for example, as a result of surface hardening, with structural damage, is accompanied by the dispersion of the velocity of the wave carrying ...
A. R. Baev   +3 more
doaj   +1 more source

Modification of the Surface of 40 Kh Steel by Electrolytic Plasma Hardening

open access: yesMetals, 2022
The high-strength, medium-carbon alloy construction steel 40 Kh is commonly used in the manufacture of tools and machine parts. This paper experimentally investigates the effect of electrolytic plasma thermocyclic hardening on the surface hardening and ...
Zhuldyz Sagdoldina   +6 more
doaj   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai   +2 more
wiley   +1 more source

The effect of steel fiber size on the properties of fresh and hardened self-compacting concrete incorporating marble powder

open access: yesSelected Scientific Papers: Journal of Civil Engineering, 2021
The current study aims at highlighting the fresh and hardened characteristics of self-compacting concrete (SCC) incorporating marble powder and steel fibers at different sizes. Seven SCC mixtures were investigated with two different types of steel fibers
Haddadou Naima   +4 more
doaj   +1 more source

Continuous laser hardening with induction pre-heating [PDF]

open access: yes, 2014
A novel way of continuous surface hardening of steel bodies by a laser beam is modeled. This heat treatment is supplemented with pre-heating of the hardened parts by a classic inductor in order to reduce the temperature gradients and subsequent ...
Dolezel, I.   +3 more
core  

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Investigation on different composition of powder metallurgy electrode (Cu-W) in high performance edm (HPEDM) on AISI D2 hardened steel [PDF]

open access: yes, 2013
The ideal selection of manufacturing conditions is one of the most important aspects to take into consideration in the majority of manufacturing processes and particularly in processes related to Electrical Discharge Machining (EDM).
Abdul Hamid, Faizul Ezmat
core  

A Technique for Making Nuclear Fusion in Solids [PDF]

open access: yes, 2017
A technique is described for making nuclear fusion at room temperature by compressing a powder mixture comprising a deuteride and catalytic material. The result is explosive beyond known chemical reaction for the materials.
WAYTE, RICHARD
core   +1 more source

Prediction of Surface Topography Parameters in Direct Laser Interference Patterning of Stainless Steel Using Infrared Monitoring and Convolutional Neural Networks

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky   +5 more
wiley   +1 more source

Finish machining of hardened steel by face milling using uncoated and TiSiN and TiAlN coated PCBN tools

open access: yesТехнічна інженерія
The article presents the results of experimental studies on the influence of various cutting regimes on the surface roughness of high-hardness hardened steel obtained after face milling with polycrystalline cubic boron nitride (PCBN) tools, both uncoated
Ya.Р. Kovalenko, P.Р. Melnychuk
doaj   +1 more source

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