Tribological and mechanical properties of Ti2AlC coating at room temperature and 800 °C

Cao, Jun; Zhu, Yin; Li, Hu‐Lin; Gao, Genyuan; Zhang, Xiuli

doi:10.1016/j.ceramint.2017.10.045

Cited by 24 publications

(5 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Combined with XRD results in Figure 2, the main components are Ti 2 AlC and TiC. e average friction coe cient of Ti 2 AlC by hot pressing sintering is about 0.65 under a contact load of 5-15 N and a sliding velocity of 5-15 mm/s [24]. e friction coe cient of Ti 2 AlC/TiAl composites by hot pressing sintering is 0.45-0.58 [25].…”

Section: Friction Properties Of Ti 2 Alc-tic and Ti 3 Alc 2 -Ticmentioning

confidence: 71%

The Influence of Sintering Pressure on the Preparation, Friction Properties, and Magnetic Properties of Ti2AlC-TiC and Ti3AlC2-TiC Composites Under High-Pressure and High-Temperature

Yuqi

2022

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Due to their high melting point, low density, and affordable price, TiC ceramics have emerged as one of the most promising ultrahigh temperature structural materials. However, its development and usage are severely constrained by its weak mechanical characteristics. The Ti2AlC-TiC and Ti3AlC2-TiC composites were synthesized by using the laminated metal-ceramic Ti2AlC/Ti3AlC2 as the binder, combined with high-temperature and high-pressure sintering technology (GPa order of magnitude confinement system). The thermal analysis shows that the exothermic heat of Ti/1.2Al/2TiC is less than that of 3Ti/1.2Al/2C, 2Ti/1.2Al/C, and 3Ti/1.5Al/C. The ratio of Ti/1.2Al/2TiC can suppress the thermal explosion phenomenon during the sintering process and improve the safety of the high-pressure sintering process. XRD results showed that the main composition of the sintered products was Ti2AlC-TiC at 2∼3.5 GPa and Ti3AlC2-TiC at 4∼5 GPa. As the sintering pressure increased from 2 GPa to 5 GPa, the bonding phase changed from Ti2AlC to Ti3AlC2. The thickness of the synthetic Ti3AlC2 layer is near 0.1 µm under 5 GPa. The average friction coefficient of Ti2AlC-TiC composites sintered 2 GPa with POM is as low as 0.1767, while the average friction coefficient of Ti3AlC2-TiC composites with POM increased to 0.3468∼0.3797. The wear width of Ti2AlC-TiC is lower than that of Ti3AlC2-TiC composites sintered under 4–4.5 GPa. The wear width of Ti3AlC2-TiC composites decreases following the rise of sintering pressure and is reduced to 0.3504 mm under 5 GPa. Ti2AlC-TiC and Ti3AlC2-TiC composites with PP ball counterparts have friction coefficients of 0.375 to 0.45 and worse wear resistance than that of POM balls. Ti3AlC2-TiC composites synthesized at 5 GPa with a Cu ball had the smallest friction coefficient (0.4558) and the smallest wear scar width (0.6289 mm). The friction coefficients and wear widths of synthetics with Al pairs ranged from 0.48–0.697 and 0.851–1.087 mm, respectively, and varied irregularly with increasing sintering pressure. Ti2AlC-TiC composites synthesized at 2 GPa with agate and glass pairs have coefficients of friction of 0.5 and 0.61, respectively. Abrasion widths of Ti2AlC-TiC composites synthesized at 2 GPa with agate and glass pairs were 1.3 mm and 0.72 mm, respectively. The friction coefficient of synthetics with agate and glass pairs increases with increasing sintering pressure. The magnetization and magnetization intensity of the Ti3AlC2-TiC composites are stronger than those of Ti3AlC2. Ti2AlC-TiC and Ti3AlC2-TiC composites held promise to serve in the field of ceramic grinding processing applications.

show abstract

Section: Friction Properties Of Ti 2 Alc-tic and Ti 3 Alc 2 -Ticmentioning

confidence: 71%

The Influence of Sintering Pressure on the Preparation, Friction Properties, and Magnetic Properties of Ti2AlC-TiC and Ti3AlC2-TiC Composites Under High-Pressure and High-Temperature

Yuqi

2022

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

show abstract

“…The tensile stresses of samples were calculated according to the Equation [ 34 ]:

, where α is coefficient of thermal expansion, E is elastic modulus, ∆T is temperature difference during quenching, and ν is Poisson’s ratio. For the Ti 2 AlC samples, the values of these parameters are as follows: E = 278 GPa, ν = 0.25, α = 9 × 10 −6 K −1 , respectively [ 31 , 32 , 35 , 36 ]. The temperature of the cooling medium is 25 °C, and the temperatures of quenching are 480 °C, 920 °C, and 1150 °C, respectively.…”

Section: Resultsmentioning

confidence: 99%

Ultra-Fast Thermal Shock Evaluation of Ti2AlC Ceramic

Ding

et al. 2022

Materials

View full text Add to dashboard Cite

In this work, the rapid thermal shock behavior of Ti2AlC ceramics was studied using induction heating. The present evaluation method possesses the merits of very rapid heating within tens of seconds and fast quenching in water of less than 0.1 s, removing the shortcomings of traditional thermal shock. For comparison, the samples were also quenched in the air to investigate the thermal shock mechanisms. The results showed that the abnormal shock occurred in the samples when quenching in water, ascribed to the formed oxide layer on the surface of Ti2AlC ceramic inhibited the water penetration into the substrate. The quenched Ti2AlC samples still had a high residual flexural strength above 167 MPa up to 1150 °C, exhibiting promising applications in the high-temperature fields.

show abstract

“…An advantage of Ti 2 AlC phase materials is their low coefficients of friction (COF). This can be attributed to the relatively weaker M (metal) and A (aluminum) bonds in comparison to the A (aluminum) and X (carbon) bonds [27]. Excellent self-lubrication with friction coefficients for Ti 2 AlC.…”

Section: Friction Properties Of the Ni-w-ti 2 Alc Composite Coatingsmentioning

confidence: 99%

Influence of the current density on the properties of electrodeposited Ni-W- Ti₂AlC composite coatings

Liu,

Gao,

Huang

et al. 2024

Eng. Res. Express

View full text Add to dashboard Cite

In this work, Ni-W-Ti2AlC composite coatings with anti-wear and anti-corrosion abilities were prepared using direct current electrodeposition. The study primarily focuses on the influence of different current densities on structure and properties of Ni-W-Ti2AlC composite coatings. The structural characterization, mechanical properties, and electrochemical performances were studied using SEM, XRD, EDS, and Tafel polarization techniques. The results indicated that Ti2AlC was successfully codeposited into the Ni-W coating. The significant improvement in hardness, wear resistance, and corrosion resistance of Ni-W-Ti2AlC composite coating is attributed to the effects of solid solution strengthening and the uniform distribution of the microstructure. At the current density of 5 A/dm2, the hardness reached the maximum of 650 HV, the lowest friction coefficient is 0.68, and the minimum corrosion current density is 1.052 ⋅ 10-3 mA.cm-2.

show abstract

Tribological and mechanical properties of Ti2AlC coating at room temperature and 800 °C

Cited by 24 publications

References 32 publications

The Influence of Sintering Pressure on the Preparation, Friction Properties, and Magnetic Properties of Ti2AlC-TiC and Ti3AlC2-TiC Composites Under High-Pressure and High-Temperature

The Influence of Sintering Pressure on the Preparation, Friction Properties, and Magnetic Properties of Ti2AlC-TiC and Ti3AlC2-TiC Composites Under High-Pressure and High-Temperature

Ultra-Fast Thermal Shock Evaluation of Ti2AlC Ceramic

Influence of the current density on the properties of electrodeposited Ni-W- Ti₂AlC composite coatings

Contact Info

Product

Resources

About

Tribological and mechanical properties of Ti2AlC coating at room temperature and 800 °C

Cited by 24 publications

References 32 publications

The Influence of Sintering Pressure on the Preparation, Friction Properties, and Magnetic Properties of Ti2AlC-TiC and Ti3AlC2-TiC Composites Under High-Pressure and High-Temperature

The Influence of Sintering Pressure on the Preparation, Friction Properties, and Magnetic Properties of Ti2AlC-TiC and Ti3AlC2-TiC Composites Under High-Pressure and High-Temperature

Ultra-Fast Thermal Shock Evaluation of Ti2AlC Ceramic

Influence of the current density on the properties of electrodeposited Ni-W- Ti2AlC composite coatings

Contact Info

Product

Resources

About

Influence of the current density on the properties of electrodeposited Ni-W- Ti₂AlC composite coatings