Results 151 to 160 of about 13,953 (312)

Estudo da liga AlSi7Mg após fundição e tratamento térmico de solubilização e envelhecimento [PDF]

open access: yes, 2007
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência e Engenharia de Materiais.Este trabalho de dissertação de mestrado teve como objetivo estudar experimentalmente o efeito de alguns ...
Duarte, Iberê Roberto
core  

Remanufacture of Die Casting Dies

open access: yes, 2011
Die casting dies are essential parts for die casting engineered metal products and usually fail due to a variety of reasons. The objective of this paper is to investigate the potential benefits and possibility of remanufacturing die casting dies. Firstly,
Heng An Ou   +3 more
core   +1 more source

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi   +5 more
wiley   +1 more source

A new reference die for mechanical properties evaluation in diecasting. Part 1 - Design and process optimisation

open access: yes, 2008
Evaluation of mechanical properties in high-pressure die-casting is a relevant issue, which is not fully covered by existing International Standards.
F. VOLTAZZA   +3 more
core  

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

open access: yesAdvanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal   +3 more
wiley   +1 more source

Pore-die-casting - a way to save aluminum?

open access: yes
4149Die casting is an established casting process for the production of cast parts from low-melting alloys in large quantities. The process is characterized by a high degree of automation and allows the production of near-net-shape castings with high ...
Hohlfeld, Jörg   +7 more
core  

Advanced Electron Microscopy and Microcomputed Tomography Analysis of Single‐Crystal Ni‐Base Superalloys After Short‐Term Multiaxial Creep

open access: yesAdvanced Engineering Materials, EarlyView.
This work studies the anisotropic behavior of circular notched tensile specimens of Ni‐base superalloy single crystals during high‐temperature tensile creep along [001], [110], and [111]. Correlative scale‐bridging imaging of specimens reveals early rupture along [110] because 1) plastic deformation proceeds faster at notch center; 2) more (brittle ...
Leonardo Agudo Jácome   +6 more
wiley   +1 more source

Effects of solidification morphology on properties and quality of hypoeutectic Al-Si-Cu alloy die castings

open access: yes, 2019
Aluminum alloys are widely used for die casting because lightweight, excellent corrosion resistance, and well dimensional stability. Especially in Japan hypoeutectic systems Al-Si-Cu alloy are used about 95%.
ニシ, ナオミ   +4 more
core  

Defect Evolution and Mechanical Performance of Fused Filament Fabrication‐Manufactured 17‐4PH Stainless Steel Revealed by X‐Ray Computed Tomography

open access: yesAdvanced Engineering Materials, EarlyView.
X‐ray computed tomography reveals how process‐induced defects evolve from green to sintered states in Fused Filament Fabrication (FFF)‐manufactured 17‐4PH stainless steel. Internal porosity, weakest cross‐sections, and fracture locations show strong correlation with tensile performance, demonstrating the potential of computed tomography (CT)‐based ...
György Ledniczky   +3 more
wiley   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

open access: yesAdvanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati   +11 more
wiley   +1 more source

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