Composites of copper and cast iron fabricated via the liquid: In the vicinity of the limits of strength in a non-deformed condition

Stepanova, Natalia; Батаев, И. А.; Kang, Youn‐Bae; Lazurenko, Daria V.; Батаев, А. А.; Razumakov, A. A.; Jorge, Alberto Moreira

doi:10.1016/j.matchar.2017.06.025

Cited by 12 publications

(10 citation statements)

References 19 publications

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“…При выполнении структурных исследований легированных чугунов методами металлографии и просвечивающей электронной микроскопии было зафиксировано разнообразие форм и размеров частиц εфазы. Классификация частиц εCu по размерам, а также условия обра зования данной фазы описаны при анализе чу гунов, легированных медью [3,5,6]. Очевидно, что влияние частиц медистой фазы вносит су щественный вклад в изменение комплекса проч ностных и триботехнических свойств материа лов.…”

Section: Materials Scienceunclassified

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Structure and Properties of Heat-treated Medium-carbon Steels Alloyed with Copper

Ogneva¹,

Martyushev²,

Altpeter³

et al. 2018

Metal Working and Material Science

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Section: Materials Scienceunclassified

“…Увели чение содержания меди приводит к измельче нию структурных составляющих в закаленных сталях, как это происходит в литых образцах (рис. [3][4][5][6].…”

Section: результаты и их обсуждениеunclassified

Structure and Properties of Heat-treated Medium-carbon Steels Alloyed with Copper

Ogneva¹,

Martyushev²,

Altpeter³

et al. 2018

Metal Working and Material Science

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“…Replacing bronze in such units with less expensive materials is an urgent task. Copper-containing iron-carbon alloys are promising materials for replacing bronze in such large-sized components [1][2][3][4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…When iron-carbon alloys contain more than 2% copper, its tribological properties are enhanced. In practice, this is expressed in a decrease in the friction coefficient and an increase in the wear resistance of the materials [1][2][3][4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Structural transformations and their impact on the mechanical and antifriction properties in the process of alloying graphitized hypereutectoid steel with copper

Stepanova,

Lozhkina

2023

Chim.Tech.Acta

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The purpose of the work is to develop a cast antifriction material based on an iron-carbon alloy with a high copper content for use in large, heavy duty sliding friction units. Using the casting method in self-hardening liquid glass mixtures, two specimens of hypereutectoid graphitized steel with different copper contents (0.09 and 8.76 wt.%) were produced. To obtain graphite in the steel structure, modification with the silicocalcium (SiCa) was used. The microstructural examination was carried out using optical metallography, SEM and TEM methods. The impact of copper on the structure as well as the mechanical and antifriction properties of graphitized hypereutectoid steel was studied. It was found that adding 8.76 wt.% of copper to the steel composition leads to an increase in the Brinell hardness level of the material from 250 to 300 HB, ultimate tensile strength from 250 to 380 MPa and compressive strength from 1050 to 1200 MPa, which is associated with an increase in the microhardness of pearlite from 350 to 420 HV. To assess the impact of copper on the sliding friction coefficient of graphitized hypereutectoid steel, a curve of sliding friction coefficient vs applied load was plotted; the experiment was carried out according to the liner-on-disk scheme. The wear resistance of materials under sliding friction conditions was also assessed using this method. Copper alloying has a positive effect on the wear resistance of graphitized hypereutectoid steel by increasing the mechanical properties of the material and also by reducing the level of the sliding friction coefficient under boundary lubrication conditions.

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“…Also, copper reduces the friction coefficient and, as a result, increases the wear resistance. The addition of large amounts of copper causes forming of the white cast iron and, consequently, the alloy becomes brittle and the toughness decreases [20]. It was reported that copper increases the rate of homogenous nucleation and the niobium leads to growth and, therefore, the crystalline structure is formed [21].…”

mentioning

confidence: 99%

Effects of aluminum and copper on the graphite morphology, microstructure, and compressive properties of ductile iron

Sazegaran

Teimoori

Rastegarian

et al. 2021

J min metall B Metall

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The effect of aluminum (0, 2, 4, and 6 wt. %) and copper (0, 2, 4, and 6 wt. %) are investigated on graphite morphology, microstructure and compressive behavior of ductile iron specimens manufactured by sand casting technique. The graphite morphology and microstructure are evaluated using optical microscopy (OM) and scanning electron microscopy (SEM) equipped image processing software. To study the mechanical properties, the compression test is conducted on the ductile iron specimens. The results indicate the surface fraction and nodule count of graphite decrease by increasing the amount of aluminum from 0 to 2 wt. % and then, increasing from 2 to 6 wt. %. In addition, the nodularity of graphite increases by the increment of the aluminum amounts. By adding the amount of copper, the surface fraction and nodule count of graphite increase and nodularity of graphite decreases. The addition of aluminum and copper decreases the surface fraction of ferrite and increases the surface fraction of pearlite in the microstructure. By increasing the amounts of aluminum and copper, compressive stress vs. strain curves are shifted upwards, and modulus of elasticity, yield strength, maximum compressive stress and fracture strain improve. In comparison with copper, aluminum has a greater influence on the mechanical properties of ductile iron.

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Composites of copper and cast iron fabricated via the liquid: In the vicinity of the limits of strength in a non-deformed condition

Cited by 12 publications

References 19 publications

Structure and Properties of Heat-treated Medium-carbon Steels Alloyed with Copper

Structure and Properties of Heat-treated Medium-carbon Steels Alloyed with Copper

Structural transformations and their impact on the mechanical and antifriction properties in the process of alloying graphitized hypereutectoid steel with copper

Effects of aluminum and copper on the graphite morphology, microstructure, and compressive properties of ductile iron

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