Microstructure and Mechanical Properties of Titanium Processed by Spark Plasma Sintering (SPS)

Chaudhari, Rajesh; Bauri, Ranjit

doi:10.1007/s13632-013-0112-6

Cited by 33 publications

(14 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It should be emphasized here that the effect of increased carbon concentration in the Ti specimens obtained by SPS was also noted in [59]. In [59] the carbon concentration in the Grade 2 purity Ti specimens after compaction by SPS was shown to increase from 0.009 to 0.048 wt.% without essential changes in the oxygen concentration.…”

Section: Discussionmentioning

confidence: 64%

Investigation of Microstructure and Corrosion Resistance of Ti-Al-V Titanium Alloys Obtained by Spark Plasma Sintering

Нохрин

Андреев

Болдин

et al. 2021

Metals

View full text Add to dashboard Cite

The research results of the microstructure and corrosion resistance of Ti and Ti-Al-V Russian industrial titanium alloys obtained by spark plasma sintering (SPS) are described. Investigations of the microstructure, phase composition, hardness, tensile strength, electrochemical corrosion resistance and hot salt corrosion of Ti-Al-V titanium alloy specimens were carried out. It was shown that the alloy specimens have a uniform highly dense microstructure and high hardness values. The studied alloys also have high resistance to electrochemical corrosion during tests in acidic aqueous solution causing the intergranular corrosion as well as high resistance to the hot salt corrosion. The assumption that the high hardness of the alloys as well as the differences in the corrosion resistance of the central and lateral parts of the specimens are due to the diffusion of carbon from the graphite mold into the specimen surface was suggested.

show abstract

Section: Discussionmentioning

confidence: 64%

Investigation of Microstructure and Corrosion Resistance of Ti-Al-V Titanium Alloys Obtained by Spark Plasma Sintering

Нохрин

Андреев

Болдин

et al. 2021

Metals

View full text Add to dashboard Cite

show abstract

“…For Ti, the average particle size of the powder material is 45 m, it has a purity of 99.5% and is 4.51 g/cm 3 in theoretical bulk density. The 90Ti10Sn powder material is divided into two different theoretical bulk densities: 90Ti10Sn-P1 (4.77 g/cm 3 ) and 90Ti10Sn-P2 (4.75 g/cm 3 ). The average particle size (27 m), and nominal chemistry (90 wt.…”

Section: Methodsmentioning

confidence: 99%

“…This was also tested by Chaudhary and Bauri using the SPS process with Ti powder material, where the time needed to complete the process was in the range of five to 10 minutes [3]. For titanium alloys (Ti-6Al-4V), research conducted by Asaoka and Kon, also using the SPS process, showed that three minutes are required in order to complete the process however the porosity of the sample was within 30 ± 3% [4].…”

Section: Introductionmentioning

confidence: 98%

Forming of titanium and titanium alloy miniature-cylinders by electrical-field activated powder sintering and forming

Zulkipli

Qin

Huang

et al. 2015

MATEC Web of Conferences

View full text Add to dashboard Cite

Abstract. As demands on miniature products increase significantly, a rapid process and production system for high-throughput, highly flexible and cost-efficient volume production of miniaturised components made from a wide range of materials is needed. A novel and electrical-field-activated sintering and forming process shows the potential to produce solid parts from powder material without any binder. Using titanium (Ti) and titanium alloy (90Ti10Sn) powder material, several processing parameters have been investigated, such as pressure, heating rate, heating temperature and holding time, which helped to contribute to the optimum result. In this study, using graphite dies, graphite punches and tungsten carbide punches, solid samples were produced, having a cylinder shape of Ø4.00 mm × 4.00 mm. Several properties of the solid Ti and 90Ti10Sn samples, such as density, hardness and the microstructures, were examined, and these showed that good results have been obtained.

show abstract

“…As a consequence, cleaning effect occurs, and the diffusion starts at lower temperature. Furthermore, with ongoing consolidation, the necks are formed and powder is directly heated by Joule effect [ 24 ]. The main difference between SPS and other sintering methods e.g.…”

Section: Introductionmentioning

confidence: 99%

Influence of Elemental Carbon (EC) Coating Covering nc-(Ti,Mo)C Particles on the Microstructure and Properties of Titanium Matrix Composites Prepared by Reactive Spark Plasma Sintering

et al. 2021

View full text Add to dashboard Cite

This paper describes the microstructure and properties of titanium-based composites obtained as a result of a reactive spark plasma sintering of a mixture of titanium and nanostructured (Ti,Mo)C-type carbide in a carbon shell. Composites with different ceramic addition mass percentage (10 and 20 wt %) were produced. Effect of content of elemental carbon covering nc-(Ti,Mo)C reinforcing phase particles on the microstructure, mechanical, tribological, and corrosion properties of the titanium-based composites was investigated. The microstructural evolution, mechanical properties, and tribological behavior of the Ti + (Ti,Mo)C/C composites were evaluated using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), electron backscatter diffraction analysis (EBSD), X-ray photoelectron spectroscopy (XPS), 3D confocal laser scanning microscopy, nanoindentation, and ball-on-disk wear test. Moreover, corrosion resistance in a 3.5 wt % NaCl solution at RT were also investigated. It was found that the carbon content affected the tested properties. With the increase of carbon content from ca. 3 to 40 wt % in the (Ti,Mo)C/C reinforcing phase, an increase in the Young’s modulus, hardness, and fracture toughness of spark plasma sintered composites was observed. The results of abrasive and corrosive resistance tests were presented and compared with experimental data obtained for cp-Ti and Ti-6Al-4V alloy without the reinforcing phase. Moreover, it was found that an increase in the percentage of carbon increased the resistance to abrasive wear and to electrochemical corrosion of composites, measured by the relatively lower values of the friction coefficient and volume of wear and higher values of resistance polarization. This resistance results from the fact that a stable of TiO2 layer doped with MoO3 is formed on the surface of the composites. The results of experimental studies on the composites were compared with those obtained for cp-Ti and Ti-6Al-4V alloy without the reinforcing phase.

show abstract

Microstructure and Mechanical Properties of Titanium Processed by Spark Plasma Sintering (SPS)

Cited by 33 publications

References 13 publications

Investigation of Microstructure and Corrosion Resistance of Ti-Al-V Titanium Alloys Obtained by Spark Plasma Sintering

Investigation of Microstructure and Corrosion Resistance of Ti-Al-V Titanium Alloys Obtained by Spark Plasma Sintering

Forming of titanium and titanium alloy miniature-cylinders by electrical-field activated powder sintering and forming

Influence of Elemental Carbon (EC) Coating Covering nc-(Ti,Mo)C Particles on the Microstructure and Properties of Titanium Matrix Composites Prepared by Reactive Spark Plasma Sintering

Contact Info

Product

Resources

About