Role of powder metallurgical processing and TiB reinforcement on mechanical response of Ti–TiB composites

Selvakumar, M.; Chandrasekar, P.; Mohanraj, M.; Ravisankar, B.; Balaraju, J.N.

doi:10.1016/j.matlet.2014.12.126

Cited by 41 publications

(12 citation statements)

References 18 publications

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“…XRD spectra of the coating at laser power of 3.3 kW and scan speed of 6 mm/s. et al [21][22][23][24] indicated that the average bond energies of TiB were decreased in the order B-B 4B-Ti 4Ti-Ti, so that the growth of TiB along the [010] crystal orientation can be more easily generated, thereby TiB was easier to become fine needle in the coating. Meanwhile, there has been a small amount of TiB small particles, which may be associated with TiB growth limited.…”

Section: Resultsmentioning

confidence: 99%

Microstructure and properties of TiB 2 –TiB reinforced titanium matrix composite coating by laser cladding

Lin

Yao

Liu

et al. 2016

Optics and Lasers in Engineering

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Section: Resultsmentioning

confidence: 99%

Microstructure and properties of TiB 2 –TiB reinforced titanium matrix composite coating by laser cladding

Lin

Yao

Liu

et al. 2016

Optics and Lasers in Engineering

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“…This is due to the adhesive connections at contact surfaces, which lead to tearing off during motion. Adhesive wear occurs due to tearing and transportation of one material of fused joints, in the form of buildups in the rubbing surface of the other metal [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…Many research investigations have been reported on the wear behavior of titanium alloys. In a related work, Alman and Hawk [11] have studied the wear behavior of particulate (TiC, TiB 2 or Si 3 N 4 )-reinforced Ti composites. The wear behavior results revealed that the Ti + TiB 2 composites of > 10 vol.% have greater wear resistance than unreinforced titanium.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigations of reciprocating wear behavior of metal matrix (Ti/TiB) composites

Selvakumar¹,

Ramkumar²,

Mohanraj

et al. 2020

Archiv.Civ.Mech.Eng

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In this paper, the reciprocating wear behavior of titanium-titanium boride composites with 20 and 40 (by vol. %) titanium boride (TiB) particles IS investigated in dry sliding conditions against Al 2 O 3 ceramic balls. The trials have been observed at three loading conditions such as 5, 10 and 15 N load. The composites were processed by three powder metallurgical techniques such as spark plasma sintering (SPS), vacuum sintering (VS) and hot isostatic pressing (HIP). The electron probe microanalysis (EPMA) was used to analyze the homogeneity of Ti and boride phases in the composites. The hardness and indentation fracture resistance were evaluated using nano-indentation technique. The load-depth curves of indents for Ti-TiB shows the deviations of the modulus of elasticity within the spark plasma sintering (SPS), vacuum sintering (VS) and hot isostatic pressing (HIP).The wear resistance of the fabricated samples was analyzed using reciprocating wear tester. The SPS composite (Ti-38.5% TiB) showed lower coefficient of friction (0.07), lower wear volume (0.4368 mm 3) and wear rate (0.000276 mm 3 /m) when compared to HIP and VS, which is attributed to the presence of fine titanium boride needles of high hardness, contributing to improving wear resistance. The surface morphology reveals that the composites processed through spark plasma sintering (SPS) and hot isostatic pressing (HIP) are subjected to minor plastic deformation. The outcome of this work is more beneficial to automotive brake pad, precision manufacturing and locomotives to avoid critical wear failures.

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“…The starting precursor compositions proposed in this work, based on titanium and boron powders, following the application of mechanical alloying (MA) and current-assisted sintering, allow the obtainment of a nearly fully compacted sinter composite structures, composed of a titanium matrix and a highly dispersed in situ nucleated titanium boride reinforcement phase. For the above type of MMC structures, other research considering different approaches investigated in literature and industrial practice [5,6,7,8,9] has not clearly indicated the relation between the processing method and the starting material, thus limiting the new possibilities of creation of the material properties.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Alloying and Electrical Current-Assisted Sintering Adopted for In Situ Ti-TiB Metal Matrix Composite Processing

Miklaszewski

Jurczyk

2019

Materials

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In this work, mechanical alloying and electrical current-assisted sintering was adopted for in situ metal matrix composite material processing. Applied at the initial powder stage, mechanical alloying enables a homogeneous distribution of the starting elements in the proposed precursor powder blends. The accompanying precursor preparation and the structurally confirmed size reduction allow obtainment of a nanoscale range for the objects to be sintered. The nano precursors aggregated in the micro-sized particle objects, subjected to electrical current-assisted sintering, characterize the metal matrix composite sinters with high uniformity, proper densification, and compaction response, as well as maintaining a nanoscale whose occurrence was confirmed by the appearance of the highly dispersed reinforcement phase in the examined Ti-TiB material example. The structural analysis of the sinters confirms the metal matrix composite arrangement and provides an additional quantitive data overview for the comparison of the processing conditions. The mechanical alloying examined in this work and the electrical current-assisted sintering approach allow in situ metal matrix composite structures to create their properties by careful control of the processing steps.

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Role of powder metallurgical processing and TiB reinforcement on mechanical response of Ti–TiB composites

Cited by 41 publications

References 18 publications

Microstructure and properties of TiB 2 –TiB reinforced titanium matrix composite coating by laser cladding

Microstructure and properties of TiB 2 –TiB reinforced titanium matrix composite coating by laser cladding

Experimental investigations of reciprocating wear behavior of metal matrix (Ti/TiB) composites

Mechanical Alloying and Electrical Current-Assisted Sintering Adopted for In Situ Ti-TiB Metal Matrix Composite Processing

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