Effect of TiC addition on the microstructure and mechanical properties of TiN-based cermets

Zeng, Wenmiao; Gan, Xueping; Li, Zhiyou; Zhou, Kechao

doi:10.1016/j.ceramint.2016.10.046

Cited by 18 publications

(5 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Rockwell hardness (HRA) was measured by HR-150A Rockwell hardness tester. Fracture toughness (K IC ) was tested by the three point bending method (Single Edge Notched Beam (SENB) method), which was also conducted on the machine mentioned above by the introduction of a sharp premade crack, the length of which was 2.5 mm, the fracture toughness (K IC ) was calculated using the expression derived by Zeng et al 5,21 3 | RESULTS AND DISCUSSION…”

Section: Characterizationmentioning

confidence: 99%

“…In addition, sintered pure TiN bulk is rarely reported or applied due to its high melting temperature, strong covalent bonding, and low sinterability. 4,5 However, it is found that the as-fabricated TiN-based cermet is an extremely promising material which can overcome the above problems.…”

Section: Introductionmentioning

confidence: 99%

“…Despite these outstanding properties, the current application of TiN can be only achieved in the coating material for various tools, ornaments or used as additives to enhance the properties of the composites. In addition, sintered pure TiN bulk is rarely reported or applied due to its high melting temperature, strong covalent bonding, and low sinterability 4,5 . However, it is found that the as‐fabricated TiN‐based cermet is an extremely promising material which can overcome the above problems.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dense TiN‐Ni cermets with improved sinterability, microstructure, and mechanical properties using Ni‐coated TiN powders

Xie

Xiong

et al. 2021

Int J Applied Ceramic Tech

Self Cite

View full text Add to dashboard Cite

To solve the poor sinterability and wettability between TiN ceramic and pure metal via using coated composite powders, dense TiN-Ni cermets with uniform microstructure and fine grains were developed at a low sintering temperature of 1300℃ in this work. TiN powders were firstly activated in a strong acid solution, in order to achieve a step-like surface; Ni-coated TiN powders showed an uniform and controllable morphology. Two types of TiN-Ni cermets based on conventional milled powders and Nicoated TiN composite powders were fabricated by spark plasma sintering (SPS), and used for the comparison concerning the sintering behavior, microstructure and related mechanical properties. Results showed that Ni-coated TiN composite powders helped to improve the sinterability between ceramic and metal, which is rather beneficial to obtain dense TiN-Ni cermets with homogeneous microstructure and high mechanical properties. Compared to those of conventional TiN-Ni, the relative density, Rockwell hardness and fracture toughness increased from 84.9% to 96.6%, 80.2 to 84.3, and 10.2 MPa·m 1/2 to 14.7 MPa·m 1/2 , with a rather low sintering temperature of 1300 ℃, respectively.

show abstract

Section: Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dense TiN‐Ni cermets with improved sinterability, microstructure, and mechanical properties using Ni‐coated TiN powders

Xie

Xiong

et al. 2021

Int J Applied Ceramic Tech

Self Cite

View full text Add to dashboard Cite

show abstract

“…In order to achieve better properties of TiN‐based cermet, WC, Mo 2 C, and TiC are introduced to improve wettability between metal binder and TiN by forming rim phases on TiN cores . In addition, some researches also have revealed that carbon addition plays a vital role in improving wettability and obtaining uniform core‐rim structure .…”

Section: Introductionmentioning

confidence: 99%

Microstructure and mechanical properties of TiN‐based cermet reinforced by Cr₃C₂ addition

Xiong

Gan

et al. 2019

Int J Applied Ceramic Tech

Self Cite

View full text Add to dashboard Cite

TiN‐based cermets with different Cr3C2 addition were prepared by conventional vacuum sintering. Effect of Cr3C2 on microstructure and properties of TiN‐based cermets were discussed. Owing to the formation of sound rims on TiN cores, ultrafine TiN‐based cermets with more uniform microstructure and finer grains were obtained with 1 wt% Cr3C2. When the added Cr3C2 content enhanced from 0 to 2 wt%, the transverse rupture strength (TRS) and fracture toughness increased firstly and then decreased, while the hardness increased monotonically. For the experimental conditions considered, the cermet with 1 wt% Cr3C2 addition had optimal combination of hardness (91HRA), fracture toughness (14.7 MPa m1/2) and TRS (2123 MPa).

show abstract

“…TiC and NbC have been highlighted for their excellent physical and chemical properties, such as high hardness, high corrosion resistance, good thermal stability and high thermal conductivity. These properties have allowed for their remarkable performance and provided them with high commercial value in the fields of metal cutting, milling, coating, and drilling [ 1 , 2 , 3 , 4 , 5 , 6 ]. However, these compounds are very difficult to fabricate by conventional sintering methods due to their high melting points and low self-diffusion coefficients.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Non-Stoichiometric (TiNb)C0.5 with High Hardness and Fracture Toughness under HTHP

Zhang

Tang

et al. 2018

Materials

View full text Add to dashboard Cite

Nonstoichiometric TiC0.5 and (TiNb)0.5 powders were prepared by the mechanical alloying process using Ti, Nb, and TiC powders as raw materials. Furthermore, the as-prepared TiC0.5 and (TiNb)0.5 powders were used as initial materials to fabricate TiC0.5 and (TiNb)0.5 compacts under high pressures and high temperatures (HTHP) of 5.5 GPa and 1200–1550 °C for 5 min. Phase identification and microstructure of the mechanical-alloyed powders and the sintered TiC0.5 and (TiNb)0.5 compacts were realized by an X-ray diffractometer and scanning electron microscope. The results indicate that the as-prepared TiC0.5 and (TiNb)0.5 powders have a similar crystal structure of face-centered cubic (FCC) to TiC. The sintered (TiNb)0.5 compact has good Vickers hardness (~16 GPa), and notably, excellent fracture toughness (~7.3 MPa·m1/2). The non-stoichiometric compound not only reduced the sintering temperature of covalent compounds, but also greatly enhanced the mechanical properties of the materials. Thus, we have provided a novel synthetic strategy for the production of a compound with high-strength covalent bonds.

show abstract

Effect of TiC addition on the microstructure and mechanical properties of TiN-based cermets

Cited by 18 publications

References 26 publications

Dense TiN‐Ni cermets with improved sinterability, microstructure, and mechanical properties using Ni‐coated TiN powders

Dense TiN‐Ni cermets with improved sinterability, microstructure, and mechanical properties using Ni‐coated TiN powders

Microstructure and mechanical properties of TiN‐based cermet reinforced by Cr₃C₂ addition

Synthesis of Non-Stoichiometric (TiNb)C0.5 with High Hardness and Fracture Toughness under HTHP

Contact Info

Product

Resources

About

Effect of TiC addition on the microstructure and mechanical properties of TiN-based cermets

Cited by 18 publications

References 26 publications

Dense TiN‐Ni cermets with improved sinterability, microstructure, and mechanical properties using Ni‐coated TiN powders

Dense TiN‐Ni cermets with improved sinterability, microstructure, and mechanical properties using Ni‐coated TiN powders

Microstructure and mechanical properties of TiN‐based cermet reinforced by Cr3C2 addition

Synthesis of Non-Stoichiometric (TiNb)C0.5 with High Hardness and Fracture Toughness under HTHP

Contact Info

Product

Resources

About

Microstructure and mechanical properties of TiN‐based cermet reinforced by Cr₃C₂ addition