Results 101 to 110 of about 16,314 (309)

Machining of Hardened Steel on CNC Machines

, 2016
The bachelor thesis deals with the topic of machining of hardened steels on CNC machines. In the first part there is the description of the company, in which the particular hardened part was machined.
Nováková, Eliška
core  

Microstructure and Mechanical Property Evolution of 34CrNiMo6 Steel via Induction Quenching and Tempering

Metals
The induction quenching–tempering process typically enhances the surface strength and core toughness of alloy steels by utilizing the skin effect.
Bing Kong, Qian Jia, Guohuan Wang, Dong Tao, Zhong Yang   +4 more
doaj   +1 more source

INVESTIGATIONS ON STRUCTURAL INFLUENCE ON FRICTION FACTOR OF MULTI-COMPONENT VACUUM- PLASMA COATING

Наука и техника, 2006
It is revealed that under relatively low values of the accelerating potential Ubasic = 0-100 B) metal - silicon - nitrogen coating formation occurs when chemical reactions of nitride formation are absent An increase of the Ubasic value up to -(150-250) В
S. A. Ivashchenko, I. A. Ivanou, S. A. Sultan, Kh. T. Karmaji   +3 more
doaj   +1 more source

Shaping Matter with Acoustic Waves: From Particles to Functional Structures

Advanced Functional Materials, EarlyView.
Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg, Shelly Zlotnikov, Maya Fiorentino, Yuval Elias, Ornit Nagler‐Avramovitz, Hagay Shpaisman   +5 more
wiley   +1 more source

A unified material model to predict ratcheting response in head-hardened rail steel due to non-uniform hardness distributions

, 2017
The non-uniform hardness distribution, metallurgy and ratchetting behaviour of head-hardened Australian rail steel (AS60 HH) are studied. In a bid to extrapolate material properties across the rail head continuum, a unified material model of the rail ...
De Pellegrin, Dennis V., Dennis V. De Pellegrin (12579328), Kourousis, Kyriakos I., Kyriakos I. Kourousis (6147854), Athukorala, Asitha C., Kyriakos I. Kourousis, Asitha C. Athukorala (12579325), Dennis V. De Pellegrin, Asitha C. Athukorala   +8 more
core   +1 more source

DETERMINATION OF MICROHARDNESS AND DEPTH OF THERMALLY HARDENING ZONE IN QUALITY CARBON STRUCTURAL STEEL AFTER WEDM USING DIFFERENT DISCHARGE PARAMETERS

Nonconventional Technologies Review, 2020
This article presents experimental studies of microhardness distributions along the depth of the thermally hardened zone in high-quality carbon Steel 45 (analog DIN 1.0503) after wire electrical discharge machining (WEDM) using а wide range of modes ...
Vasyl Osypenko, Oleksandr Plakhotnyi, Oleksii Timchenko, Andrii Kondakov   +3 more
doaj  

Atomic Layer Deposition Processes: Versatile Platforms for Engineering ZnO‐Chitosan Biointerfaces

Advanced Healthcare Materials, EarlyView.
Vapour phase metalation (VPM), multiplied pulsed vapour phase infiltration (MPI), and O2 plasma‑enhanced atomic layer deposition (PEALD) tailor Zn–chitosan (Zn‑CS) films. PEALD improves wettability and biocompatibility. MPI enhances semiconductor behavior. Antiseptic selectivity: VPM → E. coli; MPI → H. pylori.
Mabel Moreno, Anjana Devi, David Zanders, Miryam Arredondo, Davide Mariotti, Ruairi McGlynn, Sindy Devis, Simón Guerrero, Eglantina Benavente, Matias Alegría, Yusser Olguin, Lorena Lobos‐Gonzalez, Kevin Guzmán, Elizabeth Rivas‐Yañez, Paula Solar, Valentin Cepus, Michael Krause, Luis Velásquez   +17 more
wiley   +1 more source

Abrasive wear behaviour of hardened high strength boron steel

, 2014
Abrasive wear in industrial applications such as mining, materials handling and agricultural machinery constitutes a large part of the total wear. Hardened high strength boron steels are known for their good wear resistance and mechanical properties, but
Hardell, Jens,, Yousfi, Amine,, Prakash, Braham,, Lund, Martin,, Pelcastre, Leonardo,   +4 more
core   +1 more source

The possibility of tribopair lifetime extending by welding of quenched and tempered stainless steel with quenched and tempered carbon steel

Metalurgija, 2015
In the conditions of tribocorrosion wear, extending of parts lifetime could be achieved by using stainless steel,which is hardened to sufficiently high hardness.
V. Marušić , I. Samardžić, I. Budić, L. Marušić   +3 more
doaj  

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

Advanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska, Leire Unanue, Itxaso Calafel, Dorleta Otaegui, Jorge L. Olmedo‐Martínez, Lourdes Irusta, Daniel Vinagre, Nora Aranburu, Nerea Casado, Ibon Odriozola, David Mecerreyes   +10 more
wiley   +1 more source