Effects of temperature on the microstructure and physico-mechanical properties of TiNiAl-SiC composite by spark plasma sintering technique

Odetola, Peter Ifeolu; Popoola, A. P. I.; Ajenifuja, Emmanuel

doi:10.1088/2053-1591/ab16ff

Cited by 6 publications

(3 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ti-Ni-Mo 3 and Ti-Ni-Mo 4 samples showed TiO oxides (planes (020), (022), and (222) of chart 1536851) and TiO 3 (planes (004) and (112) of chart 1529954). The presence of these oxides was also reported by Swain et al [43] and Odetola et al [44]. This behavior can be explained by the increase in the Ti/Ni ratio, as, according to Chan et al [45], the increase in the Ti/Ni ratio favors the increase in TiO and TiO 2 oxides.…”

Section: X-ray Diffractionsupporting

confidence: 66%

Thermal, Mechanical, and Electrochemical Characterization of Ti50Ni50−XMox Alloys Obtained by Plasma Arc Melting

Costa,

Sousa,

Almeida

et al. 2023

Metals

View full text Add to dashboard Cite

This study aims to manufacture and characterize titanium and nickel alloys with different molybdenum (Ti–Ni–Mo) contents, focusing on the influence of these additions on the microstructure, mechanical properties, and corrosion resistance. The relevance of this work stems from the lack of research on this specific alloy and the absence of reports in the literature with molybdenum percentages above 2 at.%. Ti50Ni50−XMox alloys were produced by the plasma arc melting method, with six different compositions (x = 0, 0.5, 1, 2, 3, and 4 at.% Mo), and a comprehensive analysis of microstructure, chemical composition, thermal, mechanical, and electrochemical properties was carried out. The results demonstrated significant alterations in the microstructure of the Ni–Ti alloy with the addition of molybdenum presenting several phases, precipitates (TiNi, Ti2Ni), and oxides (Ti4Ni2O, TiO, and TiO3). The stability of the B2 phase increased with molybdenum content, and the monoclinic martensite (B19′) phase was identified only in the Ni–Ti sample. Introducing molybdenum into the Ni–Ti alloy generated the R-phase and shifted the phase transformation peaks to lower temperatures, as differential scanning calorimetry (DSC) indicated. Microhardness and elastic modulus decreased with increasing Mo content, ranging from 494 HV to 272 HV and 74 GPa to 63 GPa, respectively. Corrosion tests revealed increased corrosion resistance with increasing Mo content, reaching a polarization resistance of 2710 kΩ·cm2 and corrosion current of 11.3 µA. Therefore, this study points to Ti–Ni–Mo alloys as potential candidates to increase the range of Ni–Ti alloy applications, mainly in biomaterials, reinforcing its relevance and need in current alloy research.

show abstract

Section: X-ray Diffractionsupporting

confidence: 66%

Thermal, Mechanical, and Electrochemical Characterization of Ti50Ni50−XMox Alloys Obtained by Plasma Arc Melting

Costa,

Sousa,

Almeida

et al. 2023

Metals

View full text Add to dashboard Cite

show abstract

“…The response variables are relative densification and microhardness of the sintered composite. The statistical tool, Minitab 19 was used to generate Taguchi L9 3 4 orthogonal array for the process as shown in table 3. In the table, A represents the sintering temperature in °C, B represents the compacting pressure in MPa, C represents the heating rate in °C/min, and D represents the dwell time in mins.…”

Section: Details Of Taguchi Design Of Experiments (Doe)mentioning

confidence: 99%

“…Nevertheless, its general applications have not been fully realized due to inadequate wear, hardness and poor antifriction properties the alloy exhibits in specific service conditions [1][2][3]. During the past five decades, the engineers and researchers in the field have intensified efforts to better the identified shortcomings by the synthesis of Titanium Matrix Composites (TMCs), which basically involve the continuous (array of filaments) or discontinuous (chopped fibres or particles) reinforcements of the Ti-6Al-4 V alloy [4,5]. The delineating properties of TMCs include: high hardness and strength, good wear resistance, facilitates standard experimental research, lowers cost, conserves energy and time, minimizes waste and ensures optimal outcomes.…”

Section: Introductionmentioning

confidence: 99%

Application of Taguchi design method for optimization of spark plasma sintering process parameters for Ti-6Al-4V/ h -BN binary composite

Abe

Popoola

et al. 2019

Eng. Res. Express

View full text Add to dashboard Cite

Taguchi design method of optimization facilitates standard experimental research, lowers cost, conserves energy and time, minimizes waste and ensures optimal outcomes. In this work, Taguchi L9 3 4 orthogonal array, signal-to-noise (S/N) ratio and analysis of variance (ANOVA) statistical procedures were applied to evaluate the influence of sintering parameters/levels on the relative densification and microhardness of Ti-6Al-4V/h -BN binary composite sintered. The S/N ratios revealed that heating rate with delta value of 0.24, followed by temperature with delta value of 0.22 impart the most significant influence on the optimal quality characteristics. One-way ANOVA statistical analyses showed that heating rate imparts the greatest influence on relative densification with 36.25% contribution, followed by temperature with 31.33% contribution, whereas temperature gave the highest contribution of 34.12%, followed by heating rate with 23.31% contribution for microhardness. The optimal parameters/levels for most desirable characteristics were obtained at 1000 °C, 30 MPa, 100 °C min −1 and 10 min. The spark plasma sintered Ti6Al4V-3h-BN composite with the optimized parameters/levels attained nearly full theoretical densification of 99.54% and the sintered composite gave a microhardness value of 716.43 HV which is more than 200% that of the monolithic alloy. The confirmation test revealed that the improvement in relative densification and microhardness at the optimum parameters/levels are 1.55% and 19.2% of the arithmetic means of the initial relative densification and microhardness measurements respectively.

show abstract

Effects of silicon carbide contents on microstructure and mechanical properties of spark plasma–sintered titanium-based metal matrix

Odetola

Ajenifuja

Popoola

et al. 2019

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Effects of temperature on the microstructure and physico-mechanical properties of TiNiAl-SiC composite by spark plasma sintering technique

Cited by 6 publications

References 15 publications

Thermal, Mechanical, and Electrochemical Characterization of Ti50Ni50−XMox Alloys Obtained by Plasma Arc Melting

Thermal, Mechanical, and Electrochemical Characterization of Ti50Ni50−XMox Alloys Obtained by Plasma Arc Melting

Application of Taguchi design method for optimization of spark plasma sintering process parameters for Ti-6Al-4V/ h -BN binary composite

Effects of silicon carbide contents on microstructure and mechanical properties of spark plasma–sintered titanium-based metal matrix

Contact Info

Product

Resources

About