Effect of Cr Content on the Compression Properties and Abrasive Wear Behavior of the High-Volume Fraction (TiC–TiB2)/Cu Composites

Qiu, Feng; Han, Ying; Ai, Cheng; Lu, Jianbang; Jiang, Qi‐Chuan

doi:10.1007/s40195-014-0158-8

Cited by 17 publications

(13 citation statements)

References 22 publications

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“…with the base alloy of Alloy B, there are more peaks appeared in Alloys T15 and T30 besides the peaks of Al6(MnFe) [14]. According to the literature [15,16], these additional peaks are identified from the TiB2 particles, confirming the presence of TiB2 nanoparticles in solidified microstructure of Alloys T15 and T30. Besides, it seems that the peak intensity of TiB2 increases from Alloy T15 to Alloy T30, as shown in dashed box, indicating the higher volume fraction of TiB2 nanoparticles in Alloy T30 than in Alloy T15.…”

Section: Methodsmentioning

confidence: 78%

Influence of TiB 2 nanoparticles on elevated-temperature properties of Al-Mn-Mg 3004 alloy

Liu

Nabawy

Chen

2017

Transactions of Nonferrous Metals Society of China

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In the present work, two contents (1.5 wt. % and 3 wt. %) of TiB2 nanoparticles have been introduced in Al-Mn-Mg 3004 alloy to study their effect on the elevated-temperature properties. Results show that TiB2 nanoparticles were mainly distributed in the interdendritic grain boundaries with a size range of 20-80 nm, which is confirmed by Transmission Electron Microscopy (TEM) and X-ray diffraction (XRD). Therefore, the volume fraction of the dispersoid free zones is greatly reduced and the motion of grain boundaries and dislocations is inhibited more effectively at elevated temperate. After peak precipitation treatment, the yield strengths in the alloy with 3% TiB2 addition at room temperature and 300 o C were increased by 20% and 13% respectively while the minimum creep rate at 300 o C was reduced 5 times compared with the base alloy free of TiB2, exhibiting a considerable improvement of elevated-temperature properties in Al-Mn-Mg alloys.

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Section: Methodsmentioning

confidence: 78%

Influence of TiB 2 nanoparticles on elevated-temperature properties of Al-Mn-Mg 3004 alloy

Liu

Nabawy

Chen

2017

Transactions of Nonferrous Metals Society of China

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“…As we known, the combustion synthesis is the optimal way to prepare TiC x particle-reinforced metal matrix composites [13][14][15][16][17][18][19][20]. The shape of TiC x particles in metal matrix can be controlled through the alteration of kinetics and thermodynamic conditions during combustion synthesis.…”

Section: Introductionmentioning

confidence: 99%

Shape-Controlled TiCx Particles Fabricated by Combustion Synthesis in the Cu-Ti-C System

et al. 2017

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TiC x particle-reinforced Cu-matrix composites were prepared in the Cu-TiC system by thermal explosion and hot press. Extracted TiC x particles with various shapes of in situ TiC x particles in the Cu-TiC system were observed through the Field Emission Scanning Electron Microscope (FESEM). It was found that octahedral and close-to-spherical, spherical or cubic TiC x could be fabricated by changing the C/Ti molar ratio and Cu content. Then, the effect of the C/Ti molar ratio and constituent element concentrations on the shape of in situ TiC x particles was determined: the shape of TiC x particles is octahedral at a C/Ti ratio of 0.4-0.6 with the presence of 70 vol% Cu; or spherical and close-to-spherical at 0.8-1.0 with the presence of 70 vol% Cu; or cubic at C/Ti ratios ≥1.0 with the presence of Cu from 80 vol%-90 vol% and even at C/Ti ratios >1.0 with the presence of 70 vol% Cu. The shape-controlled synthesis of TiC x particles in the Cu-TiC system is realized.

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“…However, their low strength at high temperatures hampers their application. It is well known that TiC x particles possess excellent properties, such as high melting point [ 5 , 6 ], high hardness [ 7 , 8 ], high Young’s modulus [ 9 ], low density [ 10 , 11 ], low thermal expansion coefficient [ 12 ], and good chemical stability [ 13 , 14 ]. Therefore, adding TiC x particles to Cu matrix makes it possible to possess both high thermal conductivity and electric conductivity in combination with high strength at the same time.…”

Section: Introductionmentioning

confidence: 99%

Compression Properties and Electrical Conductivity of In-Situ 20 vol.% Nano-Sized TiCx/Cu Composites with Different Particle Size and Morphology

et al. 2017

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The compression properties and electrical conductivity of in-situ 20 vol.% nano-sized TiCx/Cu composites fabricated via combustion synthesis and hot press in Cu-Ti-CNTs system at various particles size and morphology were investigated. Cubic-TiCx/Cu composite had higher ultimate compression strength (σUCS), yield strength (σ0.2), and electric conductivity, compared with those of spherical-TiCx/Cu composite. The σUCS, σ0.2, and electrical conductivity of cubic-TiCx/Cu composite increased by 4.37%, 20.7%, and 17.8% compared with those of spherical-TiCx/Cu composite (526 MPa, 183 MPa, and 55.6% International Annealed Copper Standard, IACS). Spherical-TiCx/Cu composite with average particle size of ~94 nm exhibited higher ultimate compression strength, yield strength, and electrical conductivity compared with those of spherical-TiCx/Cu composite with 46 nm in size. The σUCS, σ0.2, and electrical conductivity of spherical-TiCx/Cu composite with average size of ~94 nm in size increased by 17.8%, 33.9%, and 62.5% compared with those of spherical-TiCx/Cu composite (417 MPa, 121 MPa, and 40.3% IACS) with particle size of 49 nm, respectively. Cubic-shaped TiCx particles with sharp corners and edges led to stress/strain localization, which enhanced the compression strength of the composites. The agglomeration of spherical-TiCx particles with small size led to the compression strength reduction of the composites.

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Effect of Cr Content on the Compression Properties and Abrasive Wear Behavior of the High-Volume Fraction (TiC–TiB2)/Cu Composites

Cited by 17 publications

References 22 publications

Influence of TiB 2 nanoparticles on elevated-temperature properties of Al-Mn-Mg 3004 alloy

Influence of TiB 2 nanoparticles on elevated-temperature properties of Al-Mn-Mg 3004 alloy

Shape-Controlled TiCx Particles Fabricated by Combustion Synthesis in the Cu-Ti-C System

Compression Properties and Electrical Conductivity of In-Situ 20 vol.% Nano-Sized TiCx/Cu Composites with Different Particle Size and Morphology

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