The role of structure formation in forming the physicomechanical properties of composites of the diamond–(Fe–Cu–Ni–Sn) system

Мечник, В. А.; Бондаренко, Н. А.; Kuzin, Nykolai O.; Lyashenko, B. A.

doi:10.3103/s1068366616040139

Cited by 19 publications

(4 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…DCCs metal matrices of tribological purpose should have low abrasive wear, high fatigue strength, as well as high elastic and plastic properties. According to [15], low abrasive wear is usually associated with high hardness, which was also repeatedly observed for DCCs [7,[9][10][11]. In this regard, when determining the tribological characteristics of DCCs, it should be taken into account that the hardness of the matrix (H) is associated with elastic and plastic properties.…”

Section: Introductionmentioning

confidence: 86%

“…The average particle size of the components in this mixture is also 550 m. Sintering of sample 3 was carried out in a steel mold at a temperature of 800 °C for 60 min, followed by hot repressing at a pressure of 160 MPa [10,11].…”

Section: Methodsmentioning

confidence: 99%

“…As a result, the wear resistance of the composite increased by 2 times. In [10], a method was developed for calculating the parameters of the structure of the diamondmatrix transition zone, which provides an increase in the tribological properties of the diamond-(FeCuNiSn) composite obtained by sintering with subsequent hot re-pressing. It was shown that a decrease in the gradient parameter of the mechanical properties leads to an improvement in the retention of diamond grains by the matrix and an increase in the wear resistance of DCCs.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Physico-mechanical and Tribological Properties of Fe-Cu-Ni-Sn and Fe-Cu-Ni-Sn-VN Nanocomposites Obtained by Powder Metallurgy Methods

Мечник¹,

Бондаренко²,

Kolodnitskyi³

et al. 2019

Tribol. Ind.

View full text Add to dashboard Cite

The results of studies aimed at improving the mechanical and operational properties of the FeCuNiSn and FeCuNiSnVN composite materials obtained by powder metallurgy methods are presented. A comparative analysis of mechanical and tribological characteristics, including the determination of nanohardness, elastic modulus, friction force, friction coefficient, and volume of wear groove was performed. It was shown that the use of 3 wt% nano-dispersed VN powder in the 51Fe-32Cu-9Ni-8Sn charge, in which the grain size was ~2000-5000 nm, makes it possible to increase the nanohardness from 2.68 to 5.37 GPa and reduce the elastic modulus from 199 to 125 GPa. As a result, the parameters H/E and H 3 /E 2 , which describe the resistance of the material to the elastic deformation of failure and the resistance of the material to plastic deformation, increase by 3.3 and 20 times, respectively, and the friction force and the volume of the wear groove decrease by 1.8 and 16 times, respectively. The reasons for the change in the mechanical characteristics of sintered composites during nanoindentation and the different nature of their wear are discussed. The interrelation of the microstructure with mechanical and tribological properties is established.

show abstract

Section: Introductionmentioning

confidence: 86%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Physico-mechanical and Tribological Properties of Fe-Cu-Ni-Sn and Fe-Cu-Ni-Sn-VN Nanocomposites Obtained by Powder Metallurgy Methods

Мечник¹,

Бондаренко²,

Kolodnitskyi³

et al. 2019

Tribol. Ind.

View full text Add to dashboard Cite

show abstract

“…A lot of works have been devoted to the study of the properties of composite diamond-containing materials based on metal matrices containing iron, copper, nickel, tin, tungsten carbide, cobalt, obtained by powder metallurgy methods. The most significant scientific and practical results on the formation of the structure of such composites with improved mechanical characteristics were obtained in [14][15][16][17][18][19][20][21][22][23]. The positive influence of chromium diboride (CrB2) [24][25][26][27], tungsten carbide (WC) [28] and vanadium nitride [29] on the structure and properties of composites is known.…”

Section: Introductionmentioning

confidence: 99%

Effect of Graphite Addition on Impregnated Diamond Bit Properties

Xie

Chen

Huang

2019

J. Superhard Mater.

View full text Add to dashboard Cite

Effect of graphite addition on impregnated diamond bit properties Graphite was used as a solid lubricant to reduce thermal damage in diamond bit when drilling without coolant. Graphite was added to the bit matrix material to reduce friction coefficient and heat. The influence of content, granularity, and surface metallization of graphite on the mechanical property and dry friction properties of the matrix, as well as the effect of diamond lifetime in the working layer were studied. Results showed that the hardness, bending strength, and friction coefficient of matrix gradually decreased with the increase in graphite concentration. Meanwhile, the abrasion loss decreased first and then increased, and the lifetime of diamond in the working layer gradually increased. With the decrease in graphite granularity, the bending strength and friction coefficient of matrix gradually decreased, whereas the hardness, abrasion loss of matrix, and diamond lifetime in the working layer gradually increased. After surface metallization of graphite, the hardness, bending strength, friction coefficient, and abrasion loss of matrix increased, whereas the lifetime of diamond in the working layer decreased. This study lays a foundation for drilling without water.

show abstract

Microstructural Features and Mechanical and Tribological Properties of Fe–Cu–Ni–Sn Composites Precipitation-Hardened with CrB2 Additions

Мечник

Бондаренко

Kolodnitskyi

et al. 2021

Powder Metall Met Ceram

View full text Add to dashboard Cite

The role of structure formation in forming the physicomechanical properties of composites of the diamond–(Fe–Cu–Ni–Sn) system

Cited by 19 publications

References 2 publications

Physico-mechanical and Tribological Properties of Fe-Cu-Ni-Sn and Fe-Cu-Ni-Sn-VN Nanocomposites Obtained by Powder Metallurgy Methods

Physico-mechanical and Tribological Properties of Fe-Cu-Ni-Sn and Fe-Cu-Ni-Sn-VN Nanocomposites Obtained by Powder Metallurgy Methods

Effect of Graphite Addition on Impregnated Diamond Bit Properties

Microstructural Features and Mechanical and Tribological Properties of Fe–Cu–Ni–Sn Composites Precipitation-Hardened with CrB2 Additions

Contact Info

Product

Resources

About