14 hasil untuk "Maringa Maina"
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Artikel Jurnal Teks lengkap
Numerical Simulation of High Strain Rate and Temperature Properties of Laser Powder Bed Fusion Ti6Al4V(ELI) Determined Using a Split Hopkinson Pressure Bar
Numerical models can be useful for analysis of the ability of structural engineering materials to withstand harsh environmental conditions such as dynamic loading. In the present study, a microstructure-variable-based numerical model for predicting the high strain rate and temperature properties of…
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Artikel Jurnal Teks lengkap
Development of VUMAT and VUHARD Subroutines for Simulating the Dynamic Mechanical Properties of Additively Manufactured Parts
Numerical modelling and simulation can be useful tools in qualification of additive manufactured parts for use in demanding structural applications. The use of these tools in predicting the mechanical properties and field performance of additive manufactured parts can be of great advantage…
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Artikel Jurnal Teks lengkap
A Comparative Analysis of Low and High SiC Volume Fraction Additively Manufactured SiC/Ti6Al4V(ELI) Composites Based on the Best Process Parameters of Laser Power, Scanning Speed and Hatch Distance
Silicon carbide (SiC) exhibits intriguing thermo-physical properties such as higher heat capacity and conductivity, as well as a lower density than Ti6Al4V(ELI). These properties make SiC a good candidate for the reinforcement of Ti6Al4V(ELI) with respect to its use as a heat shield in aero…
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Artikel Jurnal Teks lengkap
Evaluation of Dislocation Densities in Various Microstructures of Additively Manufactured Ti6Al4V (Eli) by the Method of X-ray Diffraction
Dislocations play a central role in determining strength and flow properties of metals and alloys. Diffusionless phase transformation of β→α in Ti6Al4V during the Direct Metal Laser Sintering (DMLS) process produces martensitic microstructures with high dislocation densities. However, heat…
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Artikel Jurnal
Nanoparticulate reinforced composites and their application to additively manufactured TI6AL4V for use in the aerospace sector
Metal matrix composites possess good mechanical properties at high temperatures making them good candidates for components that operate in conditions of high temperatures where they have to withstand static creep and cyclic fatigue loads. The mechanical properties of Ti6Al4V including hardness…
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Artikel Jurnal Teks lengkap
Influence of selective laser melting process parameters on the characteristics of SiC/Ti6Al4V(ELI) single tracks
Process parameters of selective laser melting, such as track height, track width and depth of penetration, affect the characteristics of laser fused single tracks. The properties of additively manufactured 3D parts depend strongly on the quality of laser melted single tracks and resultant single…
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Artikel Jurnal Teks lengkap
X-ray diffraction profile analysis of martensitic Ti6Al4V (ELI) parts produced by laser powder bed fusion
The quantification of the density of defects in materials through non-destructive methods is of great interest to scientists and engineers. X-ray diffraction (XRD) peak profile analysis is a valuable method that is often used to reveal important microstructural information, such as defects present…
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Artikel Jurnal Teks lengkap
Investigating the Recyclability of Laser PP CP 75 Polypropylene Powder in Laser Powder Bed Fusion (L-PBF)
In the present study, recyclability of Laser PP CP 75 polypropylene powder from Diamond Plastics GmbH was determined by characterizing and comparing the used powder after each cycle with material from previous cycles and with fresh powder. The melt flow index of Laser PP CP 75 was affected by…
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Artikel Jurnal Teks lengkap
Analytical and numerical modelling of laser powder bed fusion (L-PBF) of polymers – a review of the key areas of focus of the process
The uptake of laser powder bed fusion for polymers has remained limited mainly because the interaction between material properties and process parameters is not well understood. The constraints of experimentally determining the optimal process parameters for new polymers in laser powder bed fusion…
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Artikel Jurnal
Review on the effect of heat treatment on microstructure and mechanical properties of metal alloys
There is a high need for parts with well-balanced mechanical properties in industries. This is achieved through the use of various heat treatment processes. The adjustment of heat treatment parameters can lead to a diversity of microstructures. The heat treatment parameters of cooling, such as…
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Artikel Jurnal Teks lengkap
A review of the types and tessellation of lattice structures, their effectiveness and limitations in mimicking natural cellular structures
Lattice structures are useful in the automotive, biomedical, and aerospace engineering fields because of their good mechanical properties. The efficacy with which their geometries are designed influences their load-bearing capacity. The methods of generating different types of lattice structures…
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Artikel Jurnal
A review of the techniques used to characterize laser sintering of polymeric powders for use and re-use in additive manufacturing
Additive manufacturing (AM), is one of the key components of the 4th industrial revolution. Polymer laser sintering (PLS) is a subset of AM that is commonly used to process polymers, and which achieves good surface finish, good mechanical properties of finished products and for which there is no…
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Artikel Jurnal
Deformation behaviour, limitations in design, applications, and additive manufacturing of hierarchical honeycombs
Hierarchical honeycombs are particularly useful in aerospace industries because of their capability to overcome challenges related to bend-dominated behaviour. These structures are ideal for aeronautical applications because of their capacity to integrate lightweight design, good mechanical…
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Artikel Jurnal Teks lengkap
Structural and elastic properties of binary FCC Pt-Rh alloys – a first-principles study
Alloying Pt with Rh significantly enhances the high temperature stress rupture strength and maintains both oxidation and corrosion resistance at elevated temperatures. Such unique property combination renders Pt-Rh alloys mainstay in space technology, glass and chemical industries. However, the…