Fretting Tribology of Cu Matrix Composite Reinforced by In Situ Al2O3 Particle

2011 ◽  
Vol 311-313 ◽  
pp. 26-31
Author(s):  
Ai Hui Liu ◽  
Hong Yan Ding ◽  
Guang Hong Zhou ◽  
Yue Zhang
Keyword(s):  
Wear Resistance ◽  
Friction Coefficient ◽  
Matrix Composite ◽  
Pure Copper ◽  
Copper Matrix ◽  
Wear Volume ◽  
Relative Wear ◽  
Copper Matrix Composite

Combined SHS with casting, in-situ Al2O3particle-reinforced copper matrix composite was fabricated. The effects of the load and Al2O3particle on the friction coefficient and wear volume were investigated. And the wear resistance of composite was compared with that of pure copper. The results show that with the increase of load, the coefficient of the copper increases, while it decreases slightly as to composite. The wear volume of the composite is always lower than that of copper. The highest relative wear ability is 4.5, which indicates a better wear resistance..

scholarly journals A nano-micro dual-scale particulate-reinforced copper matrix composite with high strength, high electrical conductivity and superior wear resistance

RSC Advances ◽  
2018 ◽  
Vol 8 (54) ◽  
pp. 30777-30782 ◽  
Author(s):  
Cunlei Zou ◽  
Zongning Chen ◽  
Enyu Guo ◽  
Huijun Kang ◽  
Guohua Fan ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Wear Resistance ◽  
Matrix Composite ◽  
High Strength ◽  
Copper Matrix ◽  
High Electrical Conductivity ◽  
Copper Matrix Composite ◽  
Particulate Reinforced ◽  
Dual Scale

A nano Cu5Zr and micro ZrB2 dual-scale particulate-reinforced copper matrix composite is prepared by in situ synthesis and heat treatment, which has high strength, high electrical conductivity and superior wear resistance.

scholarly journals Effects of Cr and Zr Addition on Microstructures, Compressive Properties, and Abrasive Wear Behaviors of In Situ TiB2/Cu Cermets

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1464 ◽  
Author(s):  
Feng Qiu ◽  
Xiangzheng Duan ◽  
Baixin Dong ◽  
Hongyu Yang ◽  
Jianbang Lu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Compressive Strength ◽  
Yield Strength ◽  
Abrasive Wear ◽  
Pure Copper ◽  
Abrasive Particle ◽  
Wear Volume ◽  
Wear Properties

: In situ micro-TiB2/Cu cermets with a different TiB2 content (40, 50, and 60 vol %) were successfully fabricated by combustion synthesis (CS) and hot press consolidation in Cu-Ti-B systems. In addition, different contents of Cr and Zr were added to the Cu-Ti-B systems. The microstructure, mechanical properties, and abrasive wear properties of the TiB2/Cu cermets were investigated. As the ceramic content increased, the yield strength and compressive strength of the cermets were found to increase, while the strain decreased. An increase in load and abrasive particle size caused the wear volume loss of the TiB2/Cu cermets to increase. When the ceramic content was 60 vol %, the wear resistance of the TiB2/Cu cermets was 3.3 times higher than that of pure copper. The addition of the alloying elements Zr and Cr had a significant effect on the mechanical properties of the cermets. When the Cr content was 5 wt %, the yield strength, ultimate compressive strength, and microhardness of the cermets reached a maximum of 997 MPa, 1183 MPa, and 491 Hv, respectively. Correspondingly, when the Zr content was 5 wt %, those three values reached 1764 MPa, 1967 MPa, and 655 Hv, respectively, which are 871 MPa, 919 MPa, and 223 Hv higher than those of the unalloyed cermets. The wear mechanism of the in-situ TiB2/Cu cermets, and the mechanisms by which the strength and wear resistance were enhanced by the addition of Zr, were preliminarily revealed.

scholarly journals The Microstructure and Wear Resistance of a Copper Matrix Composite Layer on Copper via Nitrogen-Shielded Arc Cladding

Coatings ◽  
2016 ◽  
Vol 6 (4) ◽  
pp. 67 ◽  
Author(s):  
Yinan Li ◽  
Xianbao Liu ◽  
Zhikang Zhou ◽  
Lei Zhang ◽  
Zilong Peng
Keyword(s):  
Wear Resistance ◽  
Matrix Composite ◽  
Composite Layer ◽  
Copper Matrix ◽  
Copper Matrix Composite

Preparation and properties of copper matrix composite reinforced with SLM Fe alloy lattice

2019 ◽  
Vol 6 (5) ◽  
pp. 056530
Author(s):  
Huiyan Xu ◽  
Zhenhua Li ◽  
Baoren Teng ◽  
Bo Ren ◽  
Xin Li
Keyword(s):  
Matrix Composite ◽  
Copper Matrix ◽  
Copper Matrix Composite

A Study of 5%Mo-Cu Nanocomposite Prepared by SHS Route

2013 ◽  
Vol 675 ◽  
pp. 231-234
Author(s):  
Tie Ming Guo ◽  
Chang Song Han ◽  
Jian Gang Jia ◽  
Ying Fu ◽  
Zhi Hui ◽  
...  
Keyword(s):  
High Temperature ◽  
Electric Conductivity ◽  
Matrix Composite ◽  
Copper Matrix ◽  
Temperature Synthesis ◽  
Powder System ◽  
High Temperature Synthesis ◽  
Copper Matrix Composite ◽  
Microhardness Tester ◽  
Molybdenum Particles

Thermodynamic calculations indicate that molybdenum particles reinforced copper-matrix composite can be fabricated in CuO-Al-MoO3 powder system. Thermit reaction and self-propagation high-temperature synthesis (SHS) were applied to prepare samples. Then the phases, structure morphologies and properties were studied through the instruments of XRD, SEM and microhardness tester. The results show that nanocrystals are formed in Cu matrix and molybdenum particles are dispersive distributed in Cu matrix. The microhardness of 5﹪Mo-Cu nanocomposite is 110HV，and the relative electric conductivity is 58.6﹪IACS.

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