Effect of sintering temperature on microstructural evolution of M48 high speed tool steel bonded NbC matrix cemented carbides sintered in inert atmosphere

Hadian, A.M.; Zamani, Cyrus; Clemens, Frank

doi:10.1016/j.ijrmhm.2018.02.021

Cited by 20 publications

(3 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the relative density was above 97% for all samples, which implies that the SPS parameters used in this study could produce HSS MMCs with nearly full density. For carbide-reinforced HSS MMCs, the decrease in relative density was mainly due to the cluster of carbide particles [23,24]. By using S390 powders with a small size of D50 = 20.51 µm, the size and density of pores in designed MMC samples were reduced, which suppresses the cluster of carbide particles.…”

Section: Densification and Microstructuresmentioning

confidence: 99%

The Effect of MC-Type Carbides on the Microstructure and Wear Behavior of S390 High-Speed Steel Produced via Spark Plasma Sintering

Wang

Chen

et al. 2022

Metals

View full text Add to dashboard Cite

The microstructure and wear behavior of S390 high-speed steel (HSS) reinforced with different volume fractions of MC-type carbides produced via spark plasma sintering were investigated using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) in this study. SEM and TEM results show that V-W-rich carbides are formed around the added MC-type carbides, and these carbides have a similar composition to the M(C, N) carbides precipitated at high temperatures according to thermodynamic calculations. Both macrohardness and three-point bending results show that the carbide type is the dominant factor increasing the hardness, and the volume fraction of the carbide is the dominant factor leading to a decrease in the three-point bending strength. The wear mechanism of HSS metal matrix composites (MMCs) is confirmed as abrasive wear and oxidative wear via wear tracks and oxidation films. Compared with the sample without reinforcement (85 HRA, wear coefficient of 1.50 × 10−15 m2/N), the best MT-3 sample exhibits a hardness increase of 1.8 HRA and a three-fold increase in wear resistance.

show abstract

Section: Densification and Microstructuresmentioning

confidence: 99%

The Effect of MC-Type Carbides on the Microstructure and Wear Behavior of S390 High-Speed Steel Produced via Spark Plasma Sintering

Wang

Chen

et al. 2022

Metals

View full text Add to dashboard Cite

show abstract

“…The introduction of refractory carbides, carbonitrides, and oxides into the CPHSS composition provides them with high hardness and heat resistance and the high speed powder base with high viscosity and ductility. CPHSS can be classified as a generic class of adaptive tool materials [77][78][79][80].…”

Section: Cphss-based Tool Materialsmentioning

confidence: 99%

Application of Adaptive Materials and Coatings to Increase Cutting Tool Performance: Efficiency in the Case of Composite Powder High Speed Steel

et al. 2021

View full text Add to dashboard Cite

The paper proposes a classification of adaptive materials and coatings for tool purposes, showing the ability to adapt to external heat and power influences, thereby improving tool life. Creating a cutting tool made of composite powder high speed steels containing refractory TiC, TiCN, and Al2O3 compounds for milling 41CrS4 steel demonstrated the effectiveness of the adaptive materials. The tool material characteristics under the external loads’ influence and the surface layer adaptation to the heat–power exposure conditions were shown by the temperature field study using a semiartificial microthermocouple method (the level of fields is reduced by 20%–25% for 80% HSS + 20% TiCN), frictional interaction high-temperature tribometry (the coefficient of friction did not exceed 0.45 for 80% HSS + 20% TiCN at +20 and 600 °C), laboratory performance tests, and spectrometry of the surface layer secondary structures. Spectral analysis shows the highest spectrum intensity of TiC2 after 5 min of running in. After 20 min of milling (V = 82 m/min, f = 0.15 mm/tooth), dicarbide decomposes and transits to thermally stable secondary phase films of good lubricity such as TiO (maximum) and TiN (partially). There was an increase in tool life of up to 2 times (>35 min for 80% HSS + 20% TiCN), and a decrease in the roughness of up to 2.9 times (Ra less than 4.5 µm after 25 min of milling).

show abstract

“…Moreover, both the dissolution of Nb atoms and the precipitation of NbC can improve the microhardness and wear resistance of the coating. Hadian et al [29] prepared NbC-M48 high-speed steel composites with a volume fraction of 88% NbC by enforcing the vacuum hot pressing technique, with a hardness of 14.91 ± 0.14 GPa and a fracture toughness (K IC ) of only 1.56 ± 0.3 MPam 1/2 . Sen [23] et al prepared NbC coating on the surface of AISI 1040 steel by using thermal reaction-diffusion technology.…”

Section: Introductionmentioning

confidence: 99%

Investigating the binding properties of NbC/Fe-based composite layer and HT300 through experiments and simulations

Zhao

Shan

Wang

et al. 2023

Mater. Res. Express

View full text Add to dashboard Cite

In this work, the hot-pressing diffusion method was used for the fabrication of a novel composite structure. More specifically, by keeping the temperature constant at 1000℃ and applying a pressure value of 40 MPa for 60 min, 90 min and 120 min, respectively, the NbC/Fe composite layer on the surface of HT300 was formed. The microstructure, element distribution, microhardness, bonding property and scratch deformation characteristics of NbC/Fe composite layer were studied, and the fracture mode was studied by simulation and tensile test at the micro level. The results show that the main components of the NbC/Fe composite layer prepared in the experiment are α- Fe and NbC, the composition of the composite layer is pure. The thickness of NbC/Fe composite layer prepared with 60 min, 90 min and 120 min holding time is 5 μm、15 μm and 23 μm. The hardness of the composite layer can reach 2096.4HV0.1; The bonding property between the NbC/Fe composite layer and the matrix is the best when the heat preservation is 120 min. Because the tensile fracture is brittle and the fracture location is in the NbC/Fe composite layer, the bonding strength between the composite layer and the matrix is greater than 297MPa, which has excellent bonding properties. In the scratch test, the longer the holding time is, the stronger the bonding ability between the reinforcing layer and the matrix is, 41.2N (90min) and 75.75N (120min) respectively. The fracture mechanism in the NbC/Fe composite layer was simulated by abaqus. The fracture of the composite layer was caused by the propagation of microcracks caused by the stress concentration at the sharp corner of square NbC particles in the layer.

show abstract

Effect of sintering temperature on microstructural evolution of M48 high speed tool steel bonded NbC matrix cemented carbides sintered in inert atmosphere

Cited by 20 publications

References 29 publications

The Effect of MC-Type Carbides on the Microstructure and Wear Behavior of S390 High-Speed Steel Produced via Spark Plasma Sintering

The Effect of MC-Type Carbides on the Microstructure and Wear Behavior of S390 High-Speed Steel Produced via Spark Plasma Sintering

Application of Adaptive Materials and Coatings to Increase Cutting Tool Performance: Efficiency in the Case of Composite Powder High Speed Steel

Investigating the binding properties of NbC/Fe-based composite layer and HT300 through experiments and simulations

Contact Info

Product

Resources

About