Article
Engineering, Mechanical
Mustafa Okumus, Berna Bulbul
Summary: The study focused on the characterization of a new graphene oxide (GO) reinforced Al-10Ni/GO metal matrix composite fabricated by mechanical alloying technique. It was found that increasing the ball milling time and sintering temperature improved the microstructural evolutions, wear behaviour, mechanical and thermal properties of the fabricated composites. However, increasing the amount of GO reinforcement in the matrix from 1 wt% to 2 wt% adversely affected the properties of the composite.
Article
Engineering, Manufacturing
Andisheh Shakery, Morteza Alizadeh
Summary: Al/E-glass fiber composites were fabricated using the cross accumulative roll bonding (CARB) process, resulting in short fiber reinforced ultrafine-grained composites. The yield strength of the composites was accurately predicted by a combined model and verified through tensile tests. Increasing CARB cycles led to higher micro-hardness but decreased wear resistance due to the layered structure.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Materials Science, Multidisciplinary
Junhong Jia, Zhao Hou, Nairu He, Leping Cai, Junjie Hui
Summary: Dispersed Ti3C2Tx MXene particle reinforced Cu composites were fabricated by ball-mill mixing and hot pressing sintering. The incorporation of Ti3C2Tx enhanced the microhardness, tensile strength, and tribological properties of the Cu-Ti3C2Tx composites. The addition of Ti3C2Tx formed a lubricating film on the worn surface, resulting in a lower friction coefficient and wear rate.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Qin Zou, Lingyu Bu, Yanguo Li, Peng Wang, Yong Guan, Zhichao Lou, Yongan Luo
Summary: Spark plasma sintering was used to prepare TiAl matrix composites with different TiC0.4 content. The microstructure, mechanical properties, and tribological properties of these composites were systematically investigated. The results showed that the density, hardness, and compressive strength of the composites increased with increasing TiC0.4 content. The TiAl matrix composites with 10 wt% Ti3SiC2 and 15 wt% TiC0.4 exhibited the best tribological properties.
MATERIALS CHARACTERIZATION
(2022)
Article
Multidisciplinary Sciences
Dinesh Kumar, Lalit Thakur
Summary: The current research focuses on the development and wear performance of Al2O3 reinforced AZ91 magnesium metal matrix composites. The study demonstrates that the ultrasonic agitations result in uniform dispersion of reinforcement particulates, leading to enhanced wear resistance. The analysis of wear morphology reveals the formation of wear tracks and material removal due to particle pull-out and matrix eruption.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Materials Science, Ceramics
Vijay Mandal, Pragya Tripathi, Shashank Sharma, Bhagyaraj Jayabalan, Subrata Mukherjee, Sudhanshu S. Singh, J. Ramkumar
Summary: In this study, IN718 metal matrix composites (MMCs) with varying TiN content were fabricated using laser powder bed fusion (L-PBF) technology. A 2D numerical model was established to investigate the driving forces and deformation behavior of the melt pool at different scanning speeds. The microstructure of the fusion zone was predicted by evaluating temperature gradient, solidification rate, and cooling rate. Different defects were observed in the fabricated composites depending on the scanning speed. The mechanical properties of MMCs, such as micro-hardness and wear resistance, were evaluated.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Dinesh Kumar, Lalit Thakur
Summary: The study focuses on the fabrication and characterization of Al2O3 reinforced AZ91 Magnesium (Mg) matrix composites. The effects of varying weight percentages of Al2O3 reinforcement on the composite's particle distribution, matrix-particle interfacial reaction, microstructure, mechanical and tribological attributes were investigated. The insertion of Al2O3 particulates improved microhardness, impact strength, and indentation fracture toughness, while the homogeneous dispersion of fine particles improved wear resistance.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
H. M. Wang, J. Q. Liu, G. R. Li, F. Tang, Y. W. Yan, L. P. Gao, Y. T. Zhao
Summary: This study presents a novel method to enhance the density, interface bonding strength, and mechanical properties of B4Cp/Al composites by incorporating TiB2. The (TiB2p+B4Cp)/Al composites exhibit a clean interface and improved performance, with high compactness and compressive strength. The addition of TiB2 synergistically enhances densification and ameliorates interfaces and microstructure, leading to optimized composite properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Multidisciplinary
Qin Zou, Lingyu Bu, Yanguo Li, Yong Guan, Peng Wang, Zhichao Lou, Yongan Luo
Summary: In this study, TiC0.4 enhanced TiAl matrix composites with different Ti3SiC2 content were prepared by spark plasma sintering. The microstructure, mechanical properties, and tribological properties of the composites were systematically studied. The results showed that the density and compressive strength of the composites increased initially with the increase of Ti3SiC2 content, while the hardness slightly decreased. The best tribological properties were obtained when the mass fraction of Ti3SiC2 was 20 wt% and the mass fraction of TiC0.4 was 15 wt%.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Engineering, Mechanical
Marco Freschi, Matteo Di Virgilio, Oskari Haiko, Marco Mariani, Luca Andena, Nora Lecis, Jukka Komi, Giovanni Dotelli
Summary: A set of self-lubricating copper-tungsten disulfide composites were prepared to analyze the effects of solid lubricant concentration on their tribological, electrical and wettability properties. The experimental results showed that a second phase content in the 10-15 wt% range could guarantee a better combination of the desired features.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Metallurgy & Metallurgical Engineering
Junliu Ye, Xianhua Chen, Huan Luo, Jie Zhao, Jianbo Li, Jun Tan, Hong Yang, Bo Feng, Kaihong Zheng, Fusheng Pan
Summary: In this study, Ti particles reinforced AZ31 magnesium matrix composites were prepared by ultrasonic-assisted stir casting with hot extrusion, and the composites showed simultaneous improvement in strength, elongation and wear resistance. The enhanced mechanical properties were attributed to the grain refinement and strong interfacial bonding, while the improved wear resistance was closely related to the increased hardness of composites and the formation of protective oxidation films.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Materials Science, Multidisciplinary
Jun Deng, Zhaoyao Zhou
Summary: 304 stainless steel powder, cast WC powder, and 304 close-grained stainless steel wire mesh were used to prepare cast WC particle-reinforced 304 stainless steel composites. The effects of cast WC mass fraction, sintering temperature, and rolling deformation on the properties of the composites were investigated. The results show that the hardness and yield strength of the composites were positively influenced by all three process parameters. Higher temperature or cast WC content led to clustering of cast WC particles, resulting in brittle fracture and reduced tensile strength and plasticity of the composites. Increasing rolling deformation helped improve the strength and plasticity of the composites. The optimum content of cast WC in the blended powder was found to be 10 wt.%; the perfect sintering temperature was 1200 degrees C, and the best rolling reduction was 35%.
Article
Materials Science, Multidisciplinary
Xinjian Cao, Xiao Liu, Zhongkan Ren, Jie Guo, Xiaoyang Yi, Haizhen Wang, Jun Yang
Summary: In this study, in-situ TiCx/TC4 composites were fabricated via vacuum hot-pressing sintering using Ti3AlC2 as a precursor. The effect of Ti3AlC2 content on the microstructure, mechanical properties, and wear behavior of TC4 matrix composites was investigated. The results showed that in-situ formation of the TiCx phase resulted in refined grain size and altered microstructures, leading to improved hardness, strength, and wear behavior of the composites.
Article
Materials Science, Multidisciplinary
Berna Bulbul, Mustafa Okumus
Summary: This study investigates the effects of milling time and sintering temperature on the microstructural evolutions and thermal properties of Al-10Ni/TiO2 composites fabricated by mechanical alloying. The results show that increasing milling time leads to a more homogeneous structure and particle size reduction, while increasing sintering temperature results in the formation of intermetallic phases and increased microhardness. The wear behavior of the composites also improves with longer milling time and higher sintering temperature, leading to significantly reduced mass loss.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Heejeong Kim, Jungyu Park, Sangmin Shin, Seungchan Cho, Junghwan Kim, Dong-Su Bae, Ilguk Jo
Summary: A metal matrix composite was developed through a unique liquid pressing infiltration process to study the wear mechanism of a TiC reinforced AISI 1020 steel matrix. The TiC/AISI 1020 composite exhibited improved wear resistance compared with commercial AISI 52100 bearing steel, with increased hardness and uniform distribution of TiC contributing to the enhanced performance.
APPLIED SCIENCES-BASEL
(2021)
