Metal matrix to ceramic matrix transition via feedstock processing of SPS titanium composites alloyed with high silicone content

Tkachenko, Serhii; Mušálek, Radek; Dvořák, Karel; Spotz, Zdeněk; Montúfar, Edgar B.; Chráska, Tomáš; Křupka, Ivan; Čelko, Ladislav

doi:10.1016/j.jallcom.2018.06.086

Cited by 22 publications

(5 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, Park et al [28] investigated dense Ti-Si alloys via spark plasma sintering, concluding that the process promotes the formation of a-Ti, Ti-Si, TiSi 2 , and Ti 5 Si 3 . Similar results were obtained by Handtrack et al [29] and Tkachenko et al [30] The non-detection of Ti 3 Si in these works is feasibly because vacuum sintering temperatures are above its thermodynamic stability temperature (1170°C), and spark plasma sintering does not provide equilibrium conditions (fast heating and short reaction time).…”

Section: Introductionsupporting

confidence: 84%

Powder Metallurgy Production of Ti-2 Wt Pct Si Alloy: Structural, Mechanical, and Electrochemical Characterization of the Sintered Material

Guzmán

Muranda

Soliz

et al. 2020

Metall Mater Trans A

View full text Add to dashboard Cite

Several commercial alloys use silicon (Si) to improve titanium (Ti) resistance to creep and oxidation at high temperatures and to improve Ti corrosion resistance in acid media. According to the Ti-Si phase diagram, reported stable solid phases in the Ti-rich region are b-Ti, a-Ti, Ti 3 Si, and Ti 5 Si 3. Nevertheless, very few works in the literature discuss Ti 3 Si intermetallic production. As such, this work studied the possibility of obtaining an a-Ti-Ti 3 Si alloy by hot pressing a-Ti supersaturated solid solution powders obtained by mechanical alloying. The consolidation of milled powders was performed using uniaxial hot press equipment. Structural and morphological evolutions during the sintering process were investigated by X-ray diffraction and scanning electron microscopy. Electrochemical behaviors of sintered samples were evaluated by open circuit potential and linear sweep voltammetry. Results show a fine and uniform Ti 3 Si alloy distribution in the a-Ti matrix produced by the proposed powder metallurgy route. The sintered samples demonstrated high micro-hardness and resistance to sulfuric acid corrosion. Additionally, Ti 3 Si was shown to have a significant hardening effect on the a-Ti matrix. Electrochemical behavior further demonstrates that a fine and homogeneous Ti 3 Si distribution in the a-Ti matrix contributes to a more stable superficial oxide layer against sulfuric acid corrosion.

show abstract

Section: Introductionsupporting

confidence: 84%

Powder Metallurgy Production of Ti-2 Wt Pct Si Alloy: Structural, Mechanical, and Electrochemical Characterization of the Sintered Material

Guzmán

Muranda

Soliz

et al. 2020

Metall Mater Trans A

View full text Add to dashboard Cite

show abstract

“…Given by the requirements on high density, high strength, and favorable toughness and ductility, tungsten heavy alloys (THAs) are advantageously used for demanding applications, such as for radiation shielding, space industry components, therapeutic devices in oncology, aircraft counterbalances, or kinetic penetrators [1][2][3]. THAs can be fabricated via modern technologies, such as spark plasma sintering (SPS), or selective laser melting (SLM) [4][5][6][7][8]. However, the processing parameters, which can be varied during such procedures, are limited.…”

Section: Introductionmentioning

confidence: 99%

Effects of Sintering Conditions on Structures and Properties of Sintered Tungsten Heavy Alloy

2020

View full text Add to dashboard Cite

Probably the most advantageous fabrication technology of tungsten heavy alloys enabling the achievement of required performance combines methods of powder metallurgy and processing by intensive plastic deformation. Since the selected processing conditions applied for each individual processing step affect the final structures and properties of the alloys, their optimization is of the utmost importance. This study deals with thorough investigations of the effects of sintering temperature, sintering time, and subsequent quenching in water on the structures and mechanical properties of a 93W6Ni1Co tungsten heavy alloy. The results showed that sintering at temperatures of or above 1525 °C leads to formation of structures featuring W agglomerates surrounded by the NiCo matrix. The sintering time has non-negligible effects on the microhardness of the sintered samples as it affects the diffusion and structure softening phenomena. Implementation of quenching to the processing technology results in excellent plasticity of the green sintered and quenched pieces of almost 20%, while maintaining the strength of more than 1000 MPa.

show abstract

“…Studies conducted to investigate the behaviour and manufacturing of Titanium Matrix Composites (TMCs) have been conducted for nearly four decades. From then on, many authors reported the diversity of methods to improve the properties of Ti and its alloys (Smith and Froes, 1984;Ranganath, 1997;Ravi Chandran et al, 2004;Ni et al, 2006;Tjong and Mai, 2008;Tang et al, 2013;Choi et al, 2014;Jiang et al, 2016;Tkachenko et al, 2018;Farías et al, 2019;Pan et al, 2021;Monisha et al, 2022). Insufficient mechanical and tribological properties of Ti and its alloys may detract from their implementation for uses and applications in which these properties were an imperative need.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of the behaviour of several reinforcement materials in titanium matrix produced by Rapid Sinter Pressing Manufacturing

Montealegre-Meléndez¹,

Arévalo²,

Kitzmantel³

et al. 2022

revmetal

View full text Add to dashboard Cite

Regarding titanium matrix composites (TMCs), their properties strongly depend on the reinforcement material employed for their manufacturing; this may lead to a multitude of investigations on TMCs. Considering the diverse typology of the reinforcement, six types of ceramic particles were tested in this investigation: B4C, SiB6, TiB2, TiC, TiN, and BN. In order to compare their behaviour and their own influence on the properties of the TMCs, the same ratio was employed in the starting materials, 30% volume. Among the techniques for developing TMCs, a significant number of authors propose Powder Metallurgy as a favourable route. In this framework, the novel Rapid Sinter Pressing technique was employed to perform the present study, due to its flexibility, repeatability, and reproducibility, as well as short-run cycle times. The processing temperature (930 °C) was set with the intention of evaluating how the reinforcements behave differently depending on their reactivity with the Ti matrix. In this regard, the main objective of the research was to carry out a comparison on the behaviour of seven TMCs fabricated with similar operational parameters via RSP.

show abstract

Metal matrix to ceramic matrix transition via feedstock processing of SPS titanium composites alloyed with high silicone content

Cited by 22 publications

References 45 publications

Powder Metallurgy Production of Ti-2 Wt Pct Si Alloy: Structural, Mechanical, and Electrochemical Characterization of the Sintered Material

Powder Metallurgy Production of Ti-2 Wt Pct Si Alloy: Structural, Mechanical, and Electrochemical Characterization of the Sintered Material

Effects of Sintering Conditions on Structures and Properties of Sintered Tungsten Heavy Alloy

Comparative study of the behaviour of several reinforcement materials in titanium matrix produced by Rapid Sinter Pressing Manufacturing

Contact Info

Product

Resources

About