Characteristics and Abrasive Wear Resistance of Plasma Alloyed Layers Based on Tin Bronze and Chromium Carbide

Balanovskiy, Andrey Evgenievich; Trieu, Nguyen Van; Vinh, Nguyen Van; Anatolievna, Astafieva Natalia

doi:10.24874/ti.1274.03.22.06

Cited by 1 publication

(2 citation statements)

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“…The presence of chromium additives in composite coatings belonging to the Al-Cu-Fe system also increases wear resistance and reduces the coefficient of friction [23,48]. The results of our work are comparable with the results of the work of other authors [12,22,[42][43][44][45]49]. In [49], alloying the surface of an alloy (Cu-10Al-4Ni-4Fe) with chromium using a gas tungsten arc significantly increases the hardness and wear resistance of the surface layer.…”

Section: % Chromium Carbidesupporting

confidence: 86%

“…The high temperature and intense vibration experienced during dry wear testing promote oxidation of metal debris and result in severe abrasion. The composite materials we have obtained based on copper and chromium are superior to composite materials with tungsten, molybdenum, and graphite in terms of porosity, high strength, hardness, and wear resistance [1,2,[41][42][43][44][45][46]. The wear resistance of bronze composites increases accordingly with the increase in reinforced chromium.…”

Section: % Chromium Carbidementioning

confidence: 92%

See 1 more Smart Citation

Study of Wear of an Alloyed Layer with Chromium Carbide Particles after Plasma Melting

Karlina,

Kondratiev

et al. 2023

Crystals

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Depending on operating conditions, metals and alloys are exposed to various factors: wear, friction, corrosion, and others. Plasma surface alloying of machine and tool parts is now an effective surface treatment process of commercial and strategic importance. The plasma surface alloying process involves adding the required elements (carbon, chromium, titanium, silicon, nickel, etc.) to the surface layer of the metal during the melting process. A thin layer of the compound is pre-applied to the substrate, then melted and intensively mixed under the influence of a plasma arc, and during the solidification process, a new surface layer with optimal mechanical properties is formed. Copper-based alloys—Cu-X, where X is Fe, Cr, V, Nb, Mo, Ta, and W—belong to an immiscible binary system with high mechanical strength, electrical conductivity, and magnetism (for Fe-Cu) and also high thermal characteristics. At the same time, copper-based alloys have low hardness. In this article, wear tests were carried out on coatings obtained by plasma alloying of CuSn10 and CrxCy under various friction conditions. The following were chosen as a modifying element: chromium carbide to increase hardness and iron to increase surface tension. It is noted that an increase in the chromium carbide content to 20% leads to the formation of a martensitic structure. As a result, the microhardness of the layer increased to 700 HV. The addition of CuSn10 + 20% CrxCy and an additional 5% iron to the composition of the coating improves the formation of the surface layer. Friction tests on fixed abrasive particles were carried out at various loads of 5, 10, and 50 N. According to the test results, the alloy layer of the Fe-Cr-C-Cu-Sn system has the greatest wear resistance under abrasive conditions and dry sliding friction conditions.

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