Mechanical properties and damping capacity of SiCp/TiNif/Al composite with different volume fraction of SiC particle

2014 ◽  
Vol 66 ◽  
pp. 400-406 ◽  
Author(s):  
Jie Hu ◽  
Gaohui Wu ◽  
Qiang Zhang ◽  
Huasong Gou
Keyword(s):  
Mechanical Properties ◽  
Volume Fraction ◽  
Damping Capacity ◽  
Al Composite ◽  
Sic Particle

Fabrication and investigation on the properties of ilmenite (FeTiO3)-based Al composite by accumulative roll bonding

2019 ◽  
Vol 54 (10) ◽  
pp. 1259-1271 ◽  
Author(s):  
Medhat Elwan ◽  
A Fathy ◽  
A Wagih ◽  
A R S Essa ◽  
A Abu-Oqail ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Accumulative Roll Bonding ◽  
Room Temperature ◽  
Volume Fraction ◽  
Raw Material ◽  
Accumulative Roll Bonding Process ◽  
Roll Bonding ◽  
Hardness Tests ◽  
Al Composite

In the present study, the aluminum (Al) 1050–FeTiO3 composite was fabricated through accumulative roll bonding process, and the resultant mechanical properties were evaluated at different deformation cycles at ambient temperature. The effect of the addition of FeTiO3 particle on the microstructural evolution and mechanical properties of the composite during accumulative roll bonding was investigated. The Al–2, 4, and 8 vol.% FeTiO3 composites were produced by accumulative roll bonding at room temperature. The results showed improvement in the dispersions of the particles with the increase in the number of the rolling cycles. In order to study the mechanical properties, tensile and hardness tests were applied. It was observed that hardness and tensile strength improve with increasing accumulative roll bonding cycles. The microhardness and tensile strength of the final composites are significantly improved as compared to those of original raw material Al 1050 and increase with increasing volume fraction of FeTiO3, reaching a maximum of ∼75 HV and ∼169 MPa for Al–8 vol.% FeTiO3 at seventh cycle, respectively.

Effect of the Matrix and Reinforcement Sizes on the Microstructure, the Physical and Mechanical Properties of Al-SiC Composites

2016 ◽  
Vol 139 (1) ◽  
Author(s):  
M. A. Salem ◽  
I. G. El-Batanony ◽  
M. Ghanem ◽  
Mohamed Ibrahim Abd ElAal
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Volume Fraction ◽  
Physical And Mechanical Properties ◽  
Particle Sizes ◽  
Matrix Composites ◽  
Volume Fractions ◽  
The Matrix ◽  
Sic Composites ◽  
Sic Particle

Different Al-SiC metal matrix composites (MMCs) with a different matrix, reinforcement sizes, and volume fractions were fabricated using ball milling (BM) and powder metallurgy (PM) techniques. Al and Al-SiC composites with different volume fractions were milled for 120 h. Then, the Al and Al-SiC composites were pressed under 125 MPa and finally sintered at 450 °C. Moreover, microsize and combination between micro and nano sizes Al-SiC samples were prepared by the same way. The effect of the Al matrix, SiC reinforcement sizes and the SiC volume fraction on the microstructure evolution, physical and mechanical properties of the produced composites was investigated. The BM and powder metallurgy techniques followed by sintering produce fully dense Al-SiC composite samples with different matrix and reinforcement sizes. The SiC particle size was observed to have a higher effect on the thermal conductivity, electrical resistivity, and microhardness of the produced composites than that of the SiC volume fraction. The decreasing of the Al and SiC particle sizes and increasing of the SiC volume fraction deteriorate the physical properties. On the other hand, the microhardness was enhanced with the decreasing of the Al, SiC particle sizes and the increasing of the SiC volume fraction.

Damping capacity of the Al matrix composite reinforced with SiC particle and TiNi fiber

2016 ◽  
Vol 23 (2) ◽  
pp. 179-185
Author(s):  
Jie Hu ◽  
Gaohui Wu ◽  
Qiang Zhang ◽  
Huasong Gou
Keyword(s):  
Compressive Stress ◽  
Matrix Composite ◽  
Volume Fraction ◽  
Heating Process ◽  
Damping Capacity ◽  
Pressure Infiltration ◽  
Damping Peak ◽  
Al Matrix Composite ◽  
Al Matrix ◽  
Sic Particle

AbstractImitating the structure of steel-reinforced concrete, a composite coupling good damping capacity and mechanical property was fabricated by pressure infiltration progress. The aluminum (Al) matrix composite was hybrid reinforced by 20% volume fraction of SiC particle (SiCp) and 20% volume fraction of TiNi fiber (TiNif). The damping capacity of the composite in the temperature range from 30°C to 290°C was studied using a dynamic mechanical analyzer (DMA). Due to the B19′→B2 reverse martensitic transformation in TiNif, a damping peak showed up in the heating process. Furthermore, both the hysteretic effect of the martensite/variants interfaces in TiNif and the weak bonding interface between SiCp and TiNif were attributed to the high damping capacity of the composite. After tension deformation, a compressive stress was formed in the composite in the heating process. With the help of compressive stress, the value of the damping peak was much higher than before, since the movement of dislocation in the Al matrix was easier.

Microstructure and Thermal Physical Properties of a β­SiCp/Al Composite for Electronic Packaging Produced by Powder Metallurgy

2017 ◽  
Vol 727 ◽  
pp. 565-570
Author(s):  
Yan Yan Shi ◽  
Xiao Gang Wang ◽  
Jun Tao Liu
Keyword(s):  
Physical Properties ◽  
Electronic Packaging ◽  
Volume Fraction ◽  
Coefficient Of Thermal Expansion ◽  
Weight Ratio ◽  
Pressing Method ◽  
Al Composite ◽  
The Relationship ◽  
Thermal Physical Properties ◽  
Sic Particle

The fabrication and thermal physical properties contain thermal conductivity (TC) and coefficient of thermal expansion (CTE) using 40%、50%、60% vol% β-SiC particle reinforced Al composite for electronic packaging respectively have been analyzed. The composites were produced by ball milling and pressing method. The composite which fabricated by tri-sized β-SiC particle with a weight ratio of 17:7:1,vol% of 50% and 60%.The dense and morphology were investigated. The relationship between volume fraction of β-SiC particle and thermal physical properties was discussed. Changed the volume fraction of β-SiC particle will led to a decreasing or increasing of TC and CTE. It found that values of TC and CTE were achieved their maximum balance when using tri-sized β-SiC particle of 160μm ,125μm as well as 38μm with a weight ratio of 17:7:1 and 50%vol of β-SiC particle reinforcing.

scholarly journals Composite Zones Produced in Situ in the Ni3Al Phase

2013 ◽  
Vol 13 (1) ◽  
pp. 107-112
Author(s):  
E. Olejnika ◽  
A. Janas ◽  
G. Sikora ◽  
T. Tokarski ◽  
J. Nowak
Keyword(s):  
Mechanical Properties ◽  
Volume Fraction ◽  
Intermetallic Phase ◽  
Lower Surface ◽  
Smooth Control ◽  
Ni3al Phase ◽  
Al Composite ◽  
Fraction Size ◽  
Size And Morphology

Abstract The study presents the results of research on the development of composite zones in castings based on the intermetallic phase of Ni3Al. Composite zones were obtained by placing packets with substrates for the reaction of titanium carbide in a foundry mould. To provide a variable carbides content in the composite zone, two compositions of the packets were prepared. The first packet contained only substrates for the reaction of TiC synthesis; the second one also contained a filler. The resulting composite zones in castings were examined for the filler effect on changes in the volume fraction, size and morphology of carbides in the zone. In addition, the effect of filler on the mechanical properties of the zone was verified, observing changes of Vickers hardness in this area. It was found that the presence of filler in the composition of the packet for synthesis reduced the content of carbides, as well as their size and morphology. Lower surface content of carbides reduced hardness of the zone, which enabled smooth control of the mechanical properties. At the same time, the use of the selected filler did not disturb the course of the TiC carbide synthesis.

scholarly journals Fabrication of TiB2–Al1050 Composites with Improved Microstructural and Mechanical Properties by a Liquid Pressing Infiltration Process

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1588
Author(s):  
Seongmin Ko ◽  
Hyeonjae Park ◽  
Yeong-Hwan Lee ◽  
Sangmin Shin ◽  
Ilguk Jo ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Metal Matrix ◽  
Load Transfer ◽  
Volume Fraction ◽  
High Volume ◽  
Matrix Composites ◽  
Infiltration Process ◽  
Al Composite ◽  
Al Matrix

This study was conducted on titanium diboride (TiB2) reinforced Al metal matrix composites (MMCs) with improved properties using a TiB2 and aluminum (Al) 1050 alloy. Al composites reinforced with fine TiB2 at volume ratios of more than 60% were successfully fabricated via the liquid pressing infiltration (LPI) process, which can be used to apply gas pressure at a high temperature. The microstructure of the TiB2–Al composite fabricated at 1000 °C with pressurization of 10 bar for 1 h showed that molten Al effectively infiltrated into the high volume-fraction TiB2 preform due to the improved wettability and external gas pressurization. In addition, the interface of TiB2 and Al not only had no cracks or pores but also had no brittle intermetallic compounds. In conclusion, TiB2–Al composite, which has a sound microstructure without defects, has improved mechanical properties, such as hardness and strength, due to effective load transfer from the Al matrix to the fine TiB2 reinforcement.

Influence of Asymmetric Rolling on the Deformation Textures, Grain Size and Mechanical Properties of B4C/Al Composite

2016 ◽  
Vol 851 ◽  
pp. 196-200
Author(s):  
Bing Feng Li ◽  
Qiu Lin Li ◽  
Wei Liu ◽  
Zhen Hong Wang
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Volume Fraction ◽  
Small Diameter ◽  
Diameter Ratio ◽  
Asymmetric Rolling ◽  
Al Composite ◽  
Average Grain Size ◽  
Cold Rolling And Annealing ◽  
Deformation Textures

B4C/Al composite was a promising neutron absorb material. In this work, B4C/Al composite sheets were asymmetrically rolled and annealed. The asymmetric (ASR) condition was introduced by applying mismatched roll diameters with diameter ratios of 1.1, 1.2 and 1.3, respectively., while the symmetric rolling (SR) was used as the control experiment. Mechanical properties and microstructures of the composite were tested after cold rolling and annealing. Results showed that: ASR with small diameter ratio decreased the texture volume fraction in the B4C/Al composite, but when diameter ratio of ASR reached 1.3 new slip systems were actuated and the texture volume fraction started to increase. The average grain size of the aluminium matrix was smaller after ASR, and it decreased with the increasing diameter ratio. The hardness of B4C/Al composite after ASR was about 40% higher than the one rolled by symmetric rolling, proved that ASR is a promising way to enhance the properties of B4C/Al composite.

Quantitative Analysis on Fracture Mechanism of Al Melt Oxidatively Infiltrated SiCp/Al2O3-Al Composites by XPS

2007 ◽  
Vol 546-549 ◽  
pp. 1643-1648
Author(s):  
Yi Zhong Hong Lv ◽  
Yan Cui
Keyword(s):  
Mechanical Properties ◽  
Fracture Surface ◽  
Volume Fraction ◽  
Three Dimensional ◽  
Fracture Mechanisms ◽  
Metallographic Examination ◽  
X Ray ◽  
Dimensional Section ◽  
Properties Of Composites ◽  
Sic Particle

The chemical element and its valence at the fracture surface of SiCp/Al2O3-Al composites synthesized by oxidative infiltration of Al melt were analyzed quantitatively using X-ray photoelectron spectrometer(XPS), the percentage content of various phase at fracture surface was determined accordingly. Additionally, the volume fraction of different phase in the composites was meassured by optical metallographic examination of the three-dimensional section. And then, by the comparison of phase content between fracture surface and section of the composites, the preference for the crack penetrating various phases of the composites was identified ,which in turn micro-fracture mechanisms of the composites were revealed quantitatively. It is proved that SiC particle size has a critical influence on the percent content of co-continuous Al2O3 and Al phases, as well as the micro-fracture mechanisms of this kind of composites. Based on the analysis of micro-fracture mechanisms, the moderate size (about 10μm) of SiC particulate would be beneficial to the mechanical properties of composites, the tested results of mechanical properties under room and elevated temperature verified the hypothesis.

scholarly journals Effect of the Different High Volume Fraction of SiC Particles on the Junction of Bismuthate Glass-SiCp/Al Composite

Scanning ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-10
Author(s):  
Bin Wang ◽  
Shengguan Qu ◽  
Xiaoqiang Li
Keyword(s):  
Shear Strength ◽  
Volume Fraction ◽  
Coefficient Of Thermal Expansion ◽  
High Volume ◽  
Bonding Interface ◽  
Strength Testing ◽  
Infiltration Process ◽  
Sic Particles ◽  
Al Composite ◽  
Sic Particle

The in-house developed bismuthate glass and the SiCp/Al composites with different volume fractions of SiC particles (namely, 60 vol.%, 65 vol.%, 70 vol.%, and 75 vol.%) were jointed by vacuum hot-pressing process. The novel material can be used for the space mirror. The SiCp is an abbreviation for SiC particle. Firstly, the SiCp/Al composites with different vol.% of SiC particle were manufactured by using infiltration process. In order to obtain a stable bonding interface, the preoxide layers were fabricated on the surfaces of these composites for reacting with the bismuthate glass. The coefficient of thermal expansion (CTE) was carried out for characterizing the difference between the composites and bismuthate glass. The sealing quality of the composites and the bismuthate glass was quantified by using shear strength testing. The optical microstructures showed the particles were uniformly distributed in the Al matrix. The SEM image shows that a smooth oxidation layer was generated on the SiCp/Al composite. The CTE testing result indicated that the higher the vol.% of the particles in the composite, the lower the CTE value. The shear strength testing result disclosed that SiCp/Al composite with relatively low CTE value was favorable to obtain a bonding interface with high strength.

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