Performance of diamond drill bits with hybrid nanoreinforced Fe-Ni-Mo binder

Логинов, П.А.; Сидоренко, Д. А.; Bychkova, M. Ya.; Зайцев, А. А.; Левашов, Е. А.

doi:10.1007/s00170-018-03262-0

Cited by 10 publications

(4 citation statements)

References 38 publications

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“…Ball-milled, sintered Fe–Ni–Cu–Sn–C, Fe–Ni–Cu–Sn–C-Al 2 O 3 and Fe–Ni–Cu–Sn–C–Al 4 C 3 materials showed fine-grained microstructures and significant strengthening due to a martensitic transformation [ 152 ]. Very promising results were obtained for the use of the dispersion strengthened Fe–Ni–Mo matrix by nanoparticles of WC, hBN and nanotubes [ 153 ].…”

Section: Iron-based Materials As Solutions For Crm Substitution Inmentioning

confidence: 99%

Solutions of Critical Raw Materials Issues Regarding Iron-Based Alloys

et al. 2021

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The Critical Raw Materials (CRMs) list has been defined based on economic importance and supply risk by the European Commission. This review paper describes two issues regarding critical raw materials: the possibilities of their substitution in iron-based alloys and the use of iron-based alloys instead of other materials in order to save CRMs. This review covers strategies for saving chromium in stainless steel, substitution or lowering the amounts of carbide-forming elements (especially tungsten and vanadium) in tool steel and alternative iron-based CRM-free and low-CRM materials: austempered ductile cast iron, high-temperature alloys based on intermetallics of iron and sintered diamond tools with an iron-containing low-cobalt binder.

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Section: Iron-based Materials As Solutions For Crm Substitution Inmentioning

confidence: 99%

Solutions of Critical Raw Materials Issues Regarding Iron-Based Alloys

et al. 2021

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“…Li et al [ 5 ] prepared Fe-based diamond composites with boron addition by pressureless infiltration sintering and showed that they can be successfully used as a replacement for the commonly used WC-based materials. The improvement of mechanical and tribological properties was also studied in [ 6 , 7 , 8 , 9 , 10 ]. Iron-based pre-alloyed powders were reinforced with oxides, carbides and their mixtures.…”

Section: Introductionmentioning

confidence: 99%

Improvement in Abrasive Wear Resistance of Metal Matrix Composites Used for Diamond–Impregnated Tools by Heat Treatment

Cygan-Bączek,

Cygan,

Wyżga

et al. 2023

Materials

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This work presents the possibilities of producing a substitute for a commercial matrix material for sintered metal–diamond tools which is characterized by increased tribological properties required in machining natural stones and concrete. In this study, the improvement in wear behavior of sintered pre-alloyed matrix caused by a thermal treatment was investigated. Several mixtures made of commercially available powders were homogenized by ball milling and consolidated at 900 °C using the spark plasma sintering (SPS) method. During cooling down, the specimens were subjected to isothermal holding at 350 or 250 °C for 1 h. After consolidation, all specimens were tested for density and hardness, whereas selected specimens were characterized by scanning electron microscopy (SEM) and flexural strength tests. The specimens made of BDCM50 powder (a mixture of the base and pre-alloyed powders in 50:50 proportion) shows excellent properties including σ0.2 = 1045 MPa in the three-point bending test and HV10 ≈ 380. Resistance to abrasive wear evaluated in both three-body and two-body conditions in the MWT abrasion test was estimated at Ai3=18.1±3.9 μm/20 m and Ai2=95.9±11.8 μm/20 m, respectively. A series of diamond-impregnated specimens (segments) was also produced and tested for wear rate on abrasive concrete. The potential graphitization of the diamond grits was investigated using Raman spectroscopy and X-ray diffraction. As a reference, both the base Fe-Mn-Cu-Sn-C and commercially available Co+20%WC alloy were used to compare selected properties of the investigated materials. It has been proved that heat-treated specimens made of the base mixture modified with pre-alloyed powders are characterized by increased hardness and resistance to abrasive wear. The BDCM50 matrix has a negligible effect on diamond graphitization and shows excellent field performance, which makes it a good potential substitute for replacing Co+20%WC in sintered diamond-impregnated tools.

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“…On the other hand, due to cobalt's high and very unstable price and, most importantly, its carcinogenicity, from the beginning of the 1990s, intensive research has been undertaken to develop new alloyed powders mainly based on iron and copper [5][6][7][8][9][10][11], which could substitute cobalt and cobalt-base matrices. The current trend in the design of new materials is mainly focused on matrices with increased resistance to abrasive wear [12][13][14][15]. Ratov et al [16] studied the effect of vanadium nitride additives on the structure and strength characteristics of iron-based matrix composites.…”

Section: Introductionmentioning

confidence: 99%

Strengthening Mechanisms and Retention Properties of Sintered Iron-Based Matrix Material for Metallic-Diamond Tools

Bączek

Romański

2023

Materials

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This work presents the analysis of mechanisms controlling the deformation strengthening of the surface during abrasion and their impact on structural changes and mechanical properties of Fe-Mn-Cu-Sn-C matrix material, which was prepared by means of powder metallurgy (PM). The powder mixture was ball-milled for 8 h and densified to <1% porosity using hot pressing at 900 °C and 35 MPa. Phases and structural transformations taking place in austenite during plastic deformation were identified. The participation, distribution, and morphology of the phases, as well as the physicomechanical properties of the matrix material, were tested. It has been shown that during grinding, deformation twins are generated in areas where an austenitic microstructure is present. To test the ability of the matrix to keep diamond crystals firmly cylindrical (Ø11.3 mm× 5 mm), diamond-impregnated specimens containing diamond grits of 30/40 mesh in size and at a concentration of 20 (5% vol.) were prepared. It was finally determined by the diamond-retention index, which is the number of retained diamond particles compared to the total number of diamond particles and the pullouts on the working surface of the segment. This research shows that materials containing Ti- and Si-coated diamond particles, deposited by the CVD method, have the highest abrasion resistance and, therefore, have the best retention properties. In order to determine the bonding mechanism at the matrix–diamond interface, specimens were also analyzed by SEM and TEM.

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Performance of diamond drill bits with hybrid nanoreinforced Fe-Ni-Mo binder

Cited by 10 publications

References 38 publications

Solutions of Critical Raw Materials Issues Regarding Iron-Based Alloys

Solutions of Critical Raw Materials Issues Regarding Iron-Based Alloys

Improvement in Abrasive Wear Resistance of Metal Matrix Composites Used for Diamond–Impregnated Tools by Heat Treatment

Strengthening Mechanisms and Retention Properties of Sintered Iron-Based Matrix Material for Metallic-Diamond Tools

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