effect of b4c additive on microstructure and mechanical
Effect of nano-sized B4C addition on the mechanical
Jul 28 2017 · The experimental results indicate that nano-sized B 4 C can be used to enhance the mechanical properties of ZA27 alloy effectively. The highest mechanical performance can be obtained at ZA27-0.5 B 4 C (in weight) nanocomposite with values of tensile strength (247 MPa) and hardness (141 18 BH) and low partial porosity (0.5 ).
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The Effects of phenolic resin additive on the microstructure and mechanical properties of B4C were explained in this study. Experimental composition was batched corresponding from 0 to 10 wt of
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Two single track multi-layer walls with linear energy inputs (LEIs) of 219 and 590 J/mm were deposited by cold metal transfer-based wire arc additive manufacturing system. Combined with the X-ray diffraction technique scanning electron microscope and uniaxial tensile tests the influences of LEI and cooling rate (CR) on the microstructure evolution mechanical properties and fracture
Get PriceDelft University of Technology Effects of heat treatment
Effects of heat treatment on microstructure and mechanical behaviour of additive manufactured porous Ti6Al4V S M Ahmadi1 R K Ashok Kumar Jain1 A A Zadpoor1 C Ayas1 V A Popovich1. 1. Delft University of Technology Faculty of Mechanical Maritime and Materials Engineering
Get PriceMicrostructure and mechanical characterization of TI6AL4V
Increasing performance requirements of advanced products demands new versatile fabrication techniques. Additive technology represents one of the most prospective fields of future production. B4C-based composites were fabricated on titanium substrate by selective laser melting (SLM) using titanium (Ti-6Al-4V) and boron carbide (B4C) powder mixture at different weight ratio (Ti B4C = 1 0 9 1
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ZrB2-SiC-B4C is sintered at 1700°C by spark plasma sintering process. The effect of B4C content on the mechanical properties and microstructure of ZrB2-SiC based ceramics is studied. The results show that with the content of B4C increases the relative density and room-temperature strength decrease in the ZrB2-SiC-B4C composite. The fracture toughness rises at first and then falls down.
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Abstract. Dense B 4 C-based materials containing up to 4.9 wt Si have been produced by hot pressing in the temperature range 1600–1700°C. In this process the silicon melts to form a liquid phase which improves the sinterability of the material. The boron carbide partially dissolves in the liquid Si to form silicon carbide between the B 4 C grains. . The relative density bending
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Mechanical properties of B4C ceramics hot-pressed with no additive and CrB2 particles distributed in the B4C matrix were measured. The flexural strength of 675 MPa and the fracture toughness of 2
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Microstructure evolution and wear resistance of Stellite 12 produced by laser additive manufacturing were studied in untreated and heat-treated conditions. In untreated conditions cobalt matrix dendrites and inter-dendritic eutectic carbides were the primary microstructure blocky and lamellar eutectic carbides can be found and M7C3 and M23C6 are the primary carbides.
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Oct 01 2015 · The effect of different amounts of B 4 C on the microstructure and mechanical properties of aluminum matrix was examined. The maximum bending (238 ± 10 MPa) and compressive strength (330 ± 10 MPa) values were measured for composites sintered at 950 and 750 °C respectively.
Get PriceEffect of Tantalum on the Microstructure and Mechanical
Herein M2 high‐speed steel (HSS) samples with different Ta contents are prepared on #45 steel substrates by a laser additive manufacturing process. The microstructure and mechanical properties of the samples are systematically studied under five different Ta contents.
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Herein M2 high‐speed steel (HSS) samples with different Ta contents are prepared on #45 steel substrates by a laser additive manufacturing process. The microstructure and mechanical properties of the samples are systematically studied under five different Ta contents.
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The TiB2 reinforced Al-5Cu composites was manufactured by additive manufacturing with two kind of heat sources i.e. cold metal transfer (CMT) and electron beam melting (EBM). The TiB2 particles were in nano-sized with some submicron-sized particle clusters and their morphologies were round and near round without sharp angles. It was found that the introduce of TiB2 particles improved the
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This research was supported by the US Department of Energy under 6 H.R. Lashgari S. Zangeneh H. Shahmir M. Saghafi M. Emamy Heat treatment effect Award Number DE-EE the North American Die Casting Associ- on the microstructure tensile properties and dry sliding wear behavior of A356–10 B4C cast composites Mater.
Get PriceDelft University of Technology Effects of heat treatment
Effects of heat treatment on microstructure and mechanical behaviour of additive manufactured porous Ti6Al4V S M Ahmadi1 R K Ashok Kumar Jain1 A A Zadpoor1 C Ayas1 V A Popovich1. 1. Delft University of Technology Faculty of Mechanical Maritime and Materials Engineering
Get PriceEffect of B4C on the Mechanical Properties and
ZrB2-SiC-B4C is sintered at 1700°C by spark plasma sintering process. The effect of B4C content on the mechanical properties and microstructure of ZrB2-SiC based ceramics is studied. The results show that with the content of B4C increases the relative density and room-temperature strength decrease in the ZrB2-SiC-B4C composite. The fracture toughness rises at first and then falls down.
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Abstract. AA5083 and B 4 C powders were cryomilled in liquid nitrogen utilizing oleic caprylic and stearic acids individually in order to determine the effect of each process control agent on the resultant microstructure and mechanical properties. The microstructure of the powders was examined and consolidated samples were mechanically tested in compression.
Get PriceEffect of Al_2O_3 on Microstructure and Mechanical
B4C-Al2O3-Al composites were prepared by aluminizing the B4C-Al2O3 preforms in vacuum and the effect of Al2O3 on the microstructure and mechanical properties of the composites was analyzed.The results showed that B4C-Al2O3-Al composite is mainly composed of B4C Al2O3 Al Al3BC and AlB2.With the increasing w(Al2O3) the hardness increases first then decreases but the bending strength and
Get PriceEffect of Equal Channel Angular Pressing on Microstructure
In this experiment comparison analysis of mechanical properties porosity and grain size of Pure Al (powder) 95 AL 5 B4C (With sand casting method) and 95 AL 5 B4C (With ECAP method) are determined. The ECAP method value is much greater than the sand casting method because of metal matrix composite microstructure refinement during the pressing operation.
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Effect of additive amount on microstructure and mechanical properties of self-reinforced silicon carbide. Kim Y. Kim W. Cho D. Effect of additive amount on microstructure and mechanical properties of self-reinforced silicon carbide. Journal of Materials Science Letters 16 1384–1386 (1997) .
Get PriceMicrostructure and mechanical properties of B4C–TiB2
Jan 01 2016 · TiB 2 particles are located both intragranularly and intergranularly in the B 4 C matrix showing a strong pinning effect on B 4 C grain growth. This results in a significant refinement of the microstructure of the composite and great improvement of its mechanical properties.
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For instance AM Ti6Al4V samples may be brittle and incapable of withstanding dynamic mechanical loads due to their martensitic microstructure. The aim of this study was to apply two different heat treatment regimes (below and above β-transus) to investigate their effects on the microstructure and mechanical properties of porous Ti6Al4V specimens.
Get PriceMicrostructure and mechanical characterization of TI6AL4V
Increasing performance requirements of advanced products demands new versatile fabrication techniques. Additive technology represents one of the most prospective fields of future production. B4C-based composites were fabricated on titanium substrate by selective laser melting (SLM) using titanium (Ti-6Al-4V) and boron carbide (B4C) powder mixture at different weight ratio (Ti B4C = 1 0 9 1
Get PriceEffect of Process Control Agent on the Microstructure and
Abstract. AA5083 and B 4 C powders were cryomilled in liquid nitrogen utilizing oleic caprylic and stearic acids individually in order to determine the effect of each process control agent on the resultant microstructure and mechanical properties. The microstructure of the powders was examined and consolidated samples were mechanically tested in compression.
Get PriceMechanical Properties of Boron Carbide Ceramics
Mechanical properties of B4C ceramics hot-pressed with no additive and CrB2 particles distributed in the B4C matrix were measured. The flexural strength of 675 MPa and the fracture toughness of 2
Get Price(PDF) Effect of sintering temperature on the mechanical
B4C ceramics with different carbon contents were fabricated by pressureless sintering at 2150 °C with SiC as a sintering additive. The effects of carbon content on microstructure electrical
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