Effect of microstructure on mechanical electrical and
Abstract B 4 C-HfB 2 composites were prepared by arc-melting using B 4 C and HfB 2 as raw materials. The eutectic composition of B 4 C-HfB 2 system was 70B 4 C-30HfB 2 (mol ) with a lamellar eutectic microstructure. HfB 2 about 1 μm in thickness was dispersed in B 4 C matrix uniformly of the eutectic composite much smaller than raw powders.
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Effect of holding time on microstructure and
It is still of great interest to investigate the reinforcement effect with the presence of both whiskers and particles. In this study Ag-Cu-Ti B 4 C composite filler was developed to braze SiC ceramics and effects of holding time on the microstructure evolution and mechanical properties of the joints were investigated in detail.
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The Effect of Carbon Source on the Microstructure and the
· The Effect of Carbon Source on the Microstructure and the Mechanical Properties of Reaction Bonded Boron Carbide S. Hayun Department of Materials Engineering Ben-Gurion University of the Negev P. O. Box 653 Beer-Sheva 84105 Israel
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Effect of niobium doping on the microstructure and
· Niobium-doped lithium-rich layered cathode materials Li Li 0.2 Ni 0.2 Mn 0.6−x Nb x O 2 (x = 0 0.02 0.04 and 0.06) were prepared and the effects of Nb doping on the microstructure and electrochemical properties were investigated. Upon Nb doping the layered α-NaFeO 2 structure is maintained but with an expanded interlayer spacing and the electrochemical properties are
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Effect of Heat Treatment on Microstructure and
· The effect of heat treatment at 850oCon the microstructure and mechanical properties of SAE 1025 carbon steel has been studied. Annealing normalizing and age-hardening heat-treatments at 850 o C were used for the experimental
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Effect of welding parameters and B4C contents on the
Effect of welding parameters and B 4 C contents on the microstructure and mechanical properties of friction stir welded B 4 C/6061Al joints Author links open overlay panel Y.Z. Li
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Effect of Zn Concentration on the Microstructure and
· The microstructure and mechanical properties of Al-8.1Mg-2.6Si-(0.08 to 4.62)Zn alloys (in wt pct) have been investigated by the permanent mold casting process. X-ray diffraction analysis shows that the τ-Mg32(Al Zn)49 phase forms when the Zn content is 1.01 wt pct. With higher Zn contents of 2.37 and 3.59 wt pct the η-MgZn2 and τ-Mg32(Al Zn)49 phases precipitate in the microstructure
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Effect of Heat Treatment on Microstructure and
· The effect of heat treatment at 850oCon the microstructure and mechanical properties of SAE 1025 carbon steel has been studied. Annealing normalizing and age-hardening heat-treatments at 850 o C were used for the experimental
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Effect of welding parameters and B4C contents on the
· Effect of welding parameters and B 4 C contents on the microstructure and mechanical properties of friction stir welded B 4 C/6061Al joints Y.Z. aLi # Q.Z. Wanga B.L. Xiaob Z.Y. Mab a. Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 China b.
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Effect of TiB2 content on microstructure and
Abstract The fully dense boron carbide matrix composites containing 10 –40 (volume fraction) TiB 2 (TiB 2 /B 4 C) were in-situ fabricated via chemical reaction of B 4 C TiO 2 and graphite powders at 2 050°C under a pressure of 35 MPa. Scanning electron microscopy (SEM) and transmission election microscopy (TEM) observations show that the sub-micron/nano-sized TiB 2 particles are uniformly
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· Effect of Al-B 4 C nanocomposite filler manufactured by accumulative roll bonding (ARB) method on the microstructure and mechanical properties of weldings prepared by tungsten inert gas welding Mohammad Sadegh Bayati 1 Hassan Sharifi 1 Morteza Tayebi 2 and Taghi Isfahani 3
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Effect of Hot Rolling on the Microstructure and Properties
Oxide dispersion strengthened (ODS) alloys with Al and Zr addition have excellent radiation tolerance high-temperature strength and corrosion resistance. The 15Cr-Al-Zr-ODS alloys are processed by mechanical alloying (MA) hot isostatic pressing (HIP) subsequent hot rolling to large strains of 70 and further annealing. The effect of hot rolling on the microstructure and the properties of
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· Effect of Al-B 4 C nanocomposite filler manufactured by accumulative roll bonding (ARB) method on the microstructure and mechanical properties of weldings prepared by tungsten inert gas welding Mohammad Sadegh Bayati 1 Hassan Sharifi 1 Morteza Tayebi 2 and Taghi Isfahani 3
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Effect of Fe Mn and Sr on the Microstructure and Tensile
· In order to determine the effect of additive elements on tensile properties of the Al-Si cast alloys it was necessary to compare the microstructure of alloys investigated. Fig. 1(a) shows an optical micrograph of the microstructure of base alloy for as-cast sample obtained without additional alloying.
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Effect of polyethylene glycol 6000 on the microstructure
· Aluminum-substituted barium hexaferrite (BaFe 10.4 Al 1.6 O 19) powders were prepared using sol-gel auto-combustion and the calcination method.The effects of adding 1 g 1.5 g and 2 g of polyethylene glycol (PEG 6000) to the sol solution on the microstructure and magnetic properties of calcined BaFe 10.4 Al 1.6 O 19 were investigated. The x-ray diffraction analysis of the synthesized
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The effect of strontium on the microstructure porosity
Further investigations on tensile tests revealed optimum strontium levels for improving tensile properties. In the point of fracture behavior of the composite modified specimens with 0.2 Sr showed broken B 4 C particles and acceptable cohesion between B 4 C and matrix.
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Effect of Al-5Ti-B4C-Y refiner on the microstructure and
Effect of Al-5Ti-B 4 C-Y refiner on the microstructure and properties of Al-Cu-Mn alloy To cite this article Jinhua Ding et al 2019 Mater. Res. Express 6 016542 View the article online for updates and enhancements. Recent citations Effects of Ag content on the micro-yield strength and dimensional stability of Al Cu Li Sc (Ag) alloys Ruibin Yang et al
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Effect of holding time on microstructure and
It is still of great interest to investigate the reinforcement effect with the presence of both whiskers and particles. In this study Ag-Cu-Ti B 4 C composite filler was developed to braze SiC ceramics and effects of holding time on the microstructure evolution and mechanical properties of the joints were investigated in detail.
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The effect of strontium on the microstructure porosity
Further investigations on tensile tests revealed optimum strontium levels for improving tensile properties. In the point of fracture behavior of the composite modified specimens with 0.2 Sr showed broken B 4 C particles and acceptable cohesion between B 4 C and matrix.
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Effect of TiB2 content on microstructure and
Abstract The fully dense boron carbide matrix composites containing 10 –40 (volume fraction) TiB 2 (TiB 2 /B 4 C) were in-situ fabricated via chemical reaction of B 4 C TiO 2 and graphite powders at 2 050°C under a pressure of 35 MPa. Scanning electron microscopy (SEM) and transmission election microscopy (TEM) observations show that the sub-micron/nano-sized TiB 2 particles are uniformly
Get PriceThe effect of Si on the microstructure and mechanical
· Effect of spark plasma sintering parameters on microstructure and room-temperature hardness and toughness of fine-grained boron carbide (B4C) J. Eur. Ceram. Soc. 33 ( 2013 ) pp. 361
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Effect of different reinforcement on the microstructure
The effects of different SiC and B4C contents on the mechanical properties and microstructure of the nanocomposites were investigated. The bending and tensile strength of AA2024-2 wt. B4C nanocomposites reached up to 1286.7 MPa and 392.9 MPa respectively.
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Effect of Fe Mn and Sr on the Microstructure and Tensile
· In order to determine the effect of additive elements on tensile properties of the Al-Si cast alloys it was necessary to compare the microstructure of alloys investigated. Fig. 1(a) shows an optical micrograph of the microstructure of base alloy for as-cast sample obtained without additional alloying.
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Effect of welding parameters and B4C contents on the
· The aim is (a) to verify the feasibility of conducting multi-pass welding to achieve the perfect FSW joints using a single simple-shaped welding tool and (b) to understand the effect of the welding parameters and the B 4 Cp contents on the microstructural evolution and the mechanical properties of
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Effect of B4C addition on the microstructures and
title = "Effect of B4C addition on the microstructures and mechanical properties of ZrB2-SiC ceramics" abstract = "ZrB2 has a melting point of 3245°C and a relatively low density of 6.1 g/cm3 which makes this a candidate for application to ultrahigh temperature environments over 2000°C.
Get PriceEffect of Amorphous Layer on the Microstructure and
Li (2019). Effect of Amorphous Layer on the Microstructure and Properties of Al-B4C Layered Composite International Journal of Engineering Trends and Technology 67(6) 52-58. Abstract An Al-Al B4C-Al layered composite was produced by semi-continuous casting and hot rolling method the innerlayer is Almatrix reinforced by 40wt.
Get PriceThe effect of process variables on the physical properties
· The effect of process variables on the physical properties and microstructure of HOPO nanoemulsion flakes obtained by refractance window
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Effect of B4C nanoparticles on microstructure and
The addition of B 4 C nanoparticles to the cladding powder can refine microstructure and produce carbide eutectic phases that can alter clad layer properties. However non-uniform distribution of B element in multi-clad layers suggests more research for achieving better results.
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The Effect of He Implantation on the Tensile Properties
The Effect of He Implantation on the Tensile Properties and Microstructure of Cu/Fe Nano‐Bicrystals. Peri Landau. Corresponding Author. landaup caltech.edu Materials Science California Institute of Technology 1200 E. California Blvd Pasadena CA 91125 USA.
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