On the mechanisms of copper effect on structure formation in cast iron

Wear behaviour of grey cast iron with the presence of copper addition

“…Addition of an alloying element is complex, and it can change the microstructure in a number of ways; it can react with other alloying elements and influence the eutectic and eutectoid reaction. 16 Copper increases the number of eutectic cells while reducing eutectic cell size; it coarsens graphite and stabilizes pearlite. 10 In concentrations of up to 3.15 wt%, copper increases the tensile strength of a base iron composition, but adding more copper has increasingly less effect on the strength.…”

“…The literature clearly reveal that modifications to the grey cast iron occur with the addition of copper due to changes of the microstructure and mechanical properties. 10,14,16 However, up to now, there does not appear to have been any comprehensive investigation of the attainable morphology and wear resistance of commercial grey cast iron without and with different additions of copper under ranges of wear conditions. This omission motivated the authors to conduct a systematic study to examine the attainable morphology and wear resistance of commercial grey cast iron without and with the addition of different proportions of copper under a range of wear conditions using a pinon-disc instrument.…”

Effect of Alloying Elements on Thermal Diffusivity of Gray Cast Iron Used in Automotive Brake Disks

“…Small changes in the values of thermal diffusivity can modify the behavior of the alloys when submitted to isothermal (Ref 13,14) and thermomechanical tests of fatigue in phase.…”

Obtaining wear-resistant and score-resistant coatings with iron-based powder laser cladding with copper oxide nano-powder adding

“…This paper presents the results of studying the effect of copper oxide nano-particles in the iron-based charge on the intensity of wear and score resistance of coatings obtained with laser cladding. I ron-based alloys doped with copper can be attributed to anti-friction materials [1][2][3][4][5]. A decrease in the coefficient of friction for lowcarbon steel [1] and cast iron [2] was noted when copper is added.…”

“…An additional factor contributing to the growth of the perlite hardness is the isolation in the ferrite gaps of nano-dimensional particles of the ε-phase. In sliding friction with lubrication, the wear resistance of hypereutectoid steel containing 8.97% copper is by ~23% higher than that of antifriction cast iron АЧС- 1 С плавы на основе железа, легированные медью, можно отнести к антифрикционным материалам [1][2][3][4][5], Отмечено уменьшение коэффициента трения для низкоуглеродистой стали [1] и чугуна [2] при введении в их состав меди. На снижение коэффициента трения оказывает влияние концентрация медьсодержащих частиц размером от нескольких нанометров до десятков микрометров.…”