Wear and Breakage Resistance of Hard Alloy Coatings Strengthened with Tungsten Carbide

Sidorov, S. A.; Lobachevskii, Ya. P.; Khoroshenkov, V. K.; Akhmedova, T. Sh.; Vorob’ev, D. A.

doi:10.1007/s11015-018-0602-5

Cited by 14 publications

(3 citation statements)

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“…To substantially (by a factor of 2.8 to 3.3) increase the wear resistance [8] compared with high-strength boron-containing steels (30MnB5, B1500, B1700), it is necessary to add up to 25-35% of superhard cast tungsten carbide WC to powder alloyed iron-carbon hard alloys. Tests demonstrated that adding much WC causes excessive embrittlement of alloys (especially if the layer thickness > 2.5 mm) and reduction in their cohesive and adhesive characteristics [14,15]. For full-scale field studies and tests, prototype tools were made of 30KhGSA steel and B1500 and B1700 boron-containing steels.…”

Section: Discussion Of the Resultsmentioning

confidence: 99%

Increasing the Wear Resistance and Other Life Characteristics of Materials of Tillage Tools

et al. 2021

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Issues related to the study of wear resistance, strength, and other material characteristics of parts of tillage machinery are addressed. The importance of improving the heavy-duty tool of domestic tillage machines is evaluated. Chemical compositions and mechanical properties of steels for tools of agricultural machines of leading European manufacturers are given. New grades of steel for high-strength rolled products have been developed.Comparative results of laboratory bench tests for wear resistance of commercial and prototype domestic and foreign grades of rolled steel and powder hard-alloy coatings are presented. An effective technology for hard-facing of wearable parts of tillage machinery is substantiated and analyzed. Verification comparison performance and life-cycle tests of tools manufactured using new materials and facing technology were carried out. The life of the prototype tools was increased by a factor of 2.8 to 3.8. The market potential of using new materials science and technology developments in Russian agricultural production is assessed.

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Section: Discussion Of the Resultsmentioning

confidence: 99%

Increasing the Wear Resistance and Other Life Characteristics of Materials of Tillage Tools

et al. 2021

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“…The methods of hardening of working tools with the use of cladding methods are widespread mainly for parts made of thick-walled metal, such as chisels and plough shares, field boards, blades of deep loosening machines and others. One of the most promising technologies, as noted by most authors, is the technology of creating a bimetallic blade with self-sharpening effect using the plasma-powder cladding method [4][5][6][7]. The use of plasma powder cladding is widespread in repair production for the restoration of worn parts of the "shaft" type [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Design of automated installation for soil tillage machines’ disc working elements hardening

Dobrin

2023

E3S Web of Conf.

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This article is devoted to the development of an automated unit for hardening of disc working tools by plasma-powder surfacing with powder feeding from outside the plasmatron. The introduction describes the actual problems arising during the work of soil cultivation tools. The conducted analysis of literature sources allowed to determine the main methods of increasing the resource of disc working bodies, used at present, and their advantages and disadvantages are described. As one of the methods of increasing the resource of disc working tools the method of plasma-powder surfacing with vertical arrangement of plasmatron and powder feeding through the plasmatron is considered. The method of high-speed plasma-powder surfacing with powder feeding from outside the plasmatron into the zone of the highest temperatures of the plasma arc by means of a doser of the original patented design was chosen for the creation of the present installation. The control scheme of the installation elements is developed and presented in graphic form. The principle of operation of the main units and components of the installation is described. The basic questions of modularity and variability of application of installations of such class, and also prospects of their development at the enterprises of agrocomplex are disclosed. In the discussion the actual issues of labour conditions of the plant operator are touched upon. The conclusion presents the main conclusions on the work carried out and the developed plant.

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“…Due to the development of the furniture industry, the demand for new tool materials has increased in recent years, providing increasingly higher machining parameters and improved performance. The researchers’ works are focused mainly on improving the cutting and strength properties of WC-Co carbides, by: hard coating, ion implantation or development of new composite materials based on WC-Co [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ]. Despite all efforts of materials engineering, the “ideal tool material” has not yet been developed.…”

Section: Introductionmentioning

confidence: 99%

Influence of Diamond Grain Size on the Basic Properties of WC-Co/Diamond Composites Used in Tools for Wood-Based Materials Machining

Wachowicz

Wilkowski

2022

Materials

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The paper presents the effect of diamond particle size (varying between 2.5 µm and 20 µm) on the microstructure, density and hardness of WC-Co/diamond composites. The obtained materials contained 30% vol. diamond. The advanced sintering method Pulse Plasma Sintering (PPS) was used for the production of composites. The sintering process was carried out in two stages at a pressure of 50 and 100 MPa and a temperature of 1050 °C. Depending on the size of the diamond particles, composites with a density of 91–99% were obtained. Microstructure studies were performed employing scanning electron microscopy, along with an analysis of the chemical composition in micro-areas. Additionally, the phase composition was investigated by means of X-ray diffraction. In addition, hardness tests were performed. It was found that the size of the diamond particles significantly influenced the microstructure of the tested materials, as well as the density and hardness. As a result of PPS sintering of composites containing the finest diamond particles (2.5–5 µm), the presence of a metastable type of diamond—graphite was found.

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Wear and Breakage Resistance of Hard Alloy Coatings Strengthened with Tungsten Carbide

Cited by 14 publications

References 1 publication

Increasing the Wear Resistance and Other Life Characteristics of Materials of Tillage Tools

Increasing the Wear Resistance and Other Life Characteristics of Materials of Tillage Tools

Design of automated installation for soil tillage machines’ disc working elements hardening

Influence of Diamond Grain Size on the Basic Properties of WC-Co/Diamond Composites Used in Tools for Wood-Based Materials Machining

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