Results 91 to 100 of about 6,854 (314)

Thermodynamic and Experimental Studies on Al Addition of 253MA Steel

Metals, 2019
To solve the nozzle clogging issue in the continuous casting process of 253MA steel, a method of modifying solid inclusions to liquid phases is proposed. The CALPHAD technique was employed to predict the liquid region of the Al2O3-SiO2-Ce2O3 system. Then
Yandong Li, Tongsheng Zhang, Chengjun Liu, Maofa Jiang   +3 more
doaj   +1 more source

Nondestructive Testing of Welded Composite Metal Foams

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva, Aman Kaushik, Afsaneh Rabiei   +2 more
wiley   +1 more source

Direct selective laser sintering of aluminium alloy powders [PDF]

, 2008
The SLS/SLM of aluminium powder had been investigated by studying the effect of powder properties and laser processing parameters on the microstructures and properties of both single layer and multiple layer builds. On the basis of experimental evidence,
Olakanmi, Eyitayo Olatunde
core  

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

Advanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca, Patrick Villechaise, Malik Durand, Arnaud Longuet, Florent Coudon, Loïc Signor, Julien De Jaeger, Dominique Eyidi, Nathalie Bozzolo, Jonathan Cormier   +9 more
wiley   +1 more source

In Vitro Studies on 3D-Printed PLA/HA/GNP Structures for Bone Tissue Regeneration

Biomimetics
The successful regeneration of large-size bone defects remains one of the most critical challenges faced in orthopaedics. Recently, 3D printing technology has been widely used to fabricate reliable, reproducible and economically affordable scaffolds with
Andreea-Mariana Negrescu, Aura-Cătălina Mocanu, Florin Miculescu, Valentina Mitran, Andreea-Elena Constantinescu, Anisoara Cimpean   +5 more
doaj   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Interphase electron redistribution induced by confined transformation in PtPdBiSn nanoplates for efficient ethanol oxidation electrocatalysis

Nature Communications
Noble metal-based core/shell catalysts show great promise for ethanol oxidation reaction (EOR) through regulated dehydrogenation or bond-breaking, yet their performance remains constrained by limited interphase electron interactions accessible through ...
Mingjie Shao, Aimin Wang, Huameng Fu, Haifeng Zhang, Xiaoqing Huang, Zhengwang Zhu   +5 more
doaj   +1 more source

Exploring Linear Rake Machining In 316L Austenitic Stainless Steel for Microstructure Scale-Refinement, Grain Boundary Engineering, and Surface Modification [PDF]

, 2013
Thermo-mechanical processing plays an important role in materials property optimization through microstructure modification, required by demanding modern materials applications.
Facco, Giovanni Giuseppe
core  

Grain Refinement During Severe Plastic Deformation and Similitude of Subgrain Formation: A Molecular Dynamics Study

Advanced Engineering Materials, EarlyView.
Molecular dynamics is used to investigate structure refinement during severe plastic deformation. The results show similitude with experimental data. Molecular dynamics simulations of severe plastic deformation of monocrystalline and polycrystalline samples by multiaxial compression of aluminum are carried out.
Roberto B. Figueiredo
wiley   +1 more source

Analysis of flow stress and size effect on polycrystalline metallic materials in tension

, 2018
A model describing the size effect on the tensile strength of crystalline metallic materials is investigated. Using the nonhomogeneity of polycrystalline materials and free surface effect, the density of the geometrically necessary dislocations during ...
Park, HC, Lee, HK, Hwang, WB, Kim, YD, Jung, BB   +4 more
core   +1 more source