Results 61 to 70 of about 88,556 (341)

Criticality of porosity defects on the fatigue performance of wire + arc additive manufactured titanium alloy [PDF]

, 2019
This study was aimed at investigating the effect of internal porosity on the fatigue strength of wire + arc additive manufactured titanium alloy (WAAM Ti-6Al-4V).
Awd, Mustafa, Biswal, Romali, Ding, Jialuo, Syed, Abdul, Walther, Frank, Williams, Stewart, Zhang, Xiang   +6 more
core   +2 more sources

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Effects of Y content on laser melting-deposited 24CrNiMo steel: Formability, microstructural evolution, and mechanical properties

Materials & Design, 2020
24CrNiMo alloy steel is often used to fabricate high-speed railway brake discs. To improve the properties of the alloy prepared via laser melting deposition (LMD) and investigate the role of the rare-earth (RE) element in the LMD of 24CrNiMo steel, three
Xueliang Kang, Shiyun Dong, Hongbin Wang, Shixing Yan, Xiaoting Liu, Binshi Xu   +5 more
doaj   +1 more source

Growth of epitaxial ReS2 thin film by pulsed laser deposition

, 2018
We present results on growth of large area epitaxial ReS2 thin film both on c plane sapphire substrate and MoS2 template by pulsed laser deposition (PLD). Films tend to grow with (0001) ReS2 perpendicular to (0001) Al2O3 and (0001) ReS2 perpendicular to (
Bhat, U., Datta, R., Narayana, C., Paul, A., Peter, S. C., Rajaji, V., Sarma, S. C., Sharona, H., Sreedhara, M. B., Vishal, B.   +9 more
core   +1 more source

Process‐Informed Analysis of As‐Built Metal Additive Surface Features

Advanced Engineering Materials, EarlyView.
This article introduces a novel method for feature‐based surface texture characterisation directly incorporating manufacturing variables into the feature extraction workflow. This marks a major step towards identifying process‐specific surface properties and their influence on part function and hence a holistic understanding of process–structure ...
Theresa Buchenau, Adam Thompson, Hauke Brüning, Marc Amkreutz, Bernd Mayer, Samanta Piano   +5 more
wiley   +1 more source

A novel method of nondestructive characterization via X-ray and high-speed imaging of TiC/IN718 composite materials manufactured by LMD

Results in Engineering
In this study, IN718 alloys with TiC particulate content between wt.% 0÷15 were fabricated by Laser Melting Deposition (LMD). Increasing the ceramic reinforcement content in the metal matrix composites (MMC), the Laves phase decreased, while the hardness
Sabin Mihai, Petru-Vlad Toma, Adrian Sima, Diana Chioibasu, Andrei C. Popescu   +4 more
doaj   +1 more source

Laser Powder Bed Fusion of Copper–Tungsten Composites for Heat Sink Applications in High‐Power Electronics

Advanced Engineering Materials, EarlyView.
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh, Shashank Deepak Prabhu, Jannik Huber, Lioba Fischer, Gerhard Wolf, Nico Hempel, Peter Mayr   +6 more
wiley   +1 more source

Thermoplastic deformation of silicon surfaces induced by ultrashort pulsed lasers in submelting conditions

, 2012
A hybrid 2D theoretical model is presented to describe thermoplastic deformation effects on silicon surfaces induced by single and multiple ultrashort pulsed laser irradiation in submelting conditions. An approximation of the Boltzmann transport equation
E. Stratakis, G. D. Tsibidis, Itina T. E., K. E. Aifantis, Korte F., Sokolnikoff I. S.   +5 more
core   +1 more source

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

Advanced Engineering Materials, EarlyView.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat, Hamidreza Enshaei, Elaine Armelin, José I. Iribarren, Antonio Mateo, Miguel Morales   +5 more
wiley   +1 more source

Deposición de láser pulsado de hidroxiapatita en Ti-6Al-4V producido por manufactura aditiva

Revista UIS Ingenierías, 2022
In this work, the mechanical properties, chemical composition, and surface morphology of hydroxyapatite coatings deposited by pulsed laser deposition on Ti6Al4V substrates manufactured by electron beam melting, varying the deposition energy, were ...
Estefanía Corredor, Octavio Andrés González-Estrada, Rogelio Ospina-Ospina   +2 more
doaj   +1 more source