The Structure and Properties of Cast Iron Alloyed with Copper

Razumakov, A. A.; Stepanova, Natalia; Батаев, И. А.; Lenivtseva, O G; Riapolova, Iu Iu; Émurlaev, K. I.

doi:10.1088/1757-899x/124/1/012136

Cited by 14 publications

(9 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is known that the addition of alloy elements, cooling rate and formation of graphite influence the properties of cast iron. Copper leads to the graphitizing and pearlitization of cast iron, which are phase-stabilizing, which substantially affects mechanical properties such as strength, toughness and corrosion resistance [19][20][21][22][23][24]. Many researchers have studied the effect of Cu addition on the mechanical properties and structure formation of cast iron.…”

Section: Reduction Smelting For Ironmakingmentioning

confidence: 99%

“…Many researchers have studied the effect of Cu addition on the mechanical properties and structure formation of cast iron. Nassef et al [19], Agunsove et al [20] and Razumakov et al [23] concluded that the structure and mechanical properties of cast iron are affected by the addition of 1 to 3.5% copper, which resulted in better wear resistance and the lowest wear loss, and hardness and tensile strength initially increased according to the decreased to volume fraction of graphite and stabilization of pearlite. Cast iron contains such main elements as carbon ranging from 1.8 to 4% and silicon from 1 to 3%, and other alloying elements, and has graphite flakes.…”

Section: Reduction Smelting For Ironmakingmentioning

confidence: 99%

See 1 more Smart Citation

A Study on Reduction of Copper Smelting Slag by Carbon for Recycling into Metal Values and Cement Raw Material

Wang

Erdenebold

2020

Sustainability

View full text Add to dashboard Cite

Copper smelting slag is a solution of molten oxides created during the copper smelting and refining process, and about 1.5 million tons of copper slag are generated annually in Korea. The oxides in copper smelting slag include ferrous (FeO), ferric oxide (Fe2O3), silica (SiO2 from flux), alumina (AI2O3), calcia (CaO) and magnesia (MgO). The main oxides in copper slag, which are iron oxide and silica, exist in the form of fayalite (2FeO·SiO2). Since copper smelting slag contains high content of iron, and copper and zinc, common applications of copper smelting slag can be used in value-added products such as abrasive tools, roofing granules, road-base construction, railroad ballast, fine aggregate in concrete, etc. Some studies have attempted to recover metal values from copper slag. This research was intended to recover ferrous alloy contained Cu, a raw material of zinc, from copper slag, and produce reformed slag such as blast furnace slag for Portland cement. As a result, it was confirmed that with reduction smelting by carbon at temperatures above 1400 °C, it is possible to recover pig iron containing copper from copper smelting slag, and the addition of CaO in reduction smelting helped to reduce iron oxide in the fayalite and change the chemical and mineralogical composition of the slag. The copper oxide in the slag can be easily reduced and dissolved in the molten pig iron, and zinc oxide is also reduced to a volatile zinc, which is removed from the furnace as fumes, by carbon during the reduction process. When CaO addition is above 5%, acid slag is completely transformed into calcium silicate slag and is observed to be like blast furnace slag.

show abstract

Section: Reduction Smelting For Ironmakingmentioning

confidence: 99%

Section: Reduction Smelting For Ironmakingmentioning

confidence: 99%

A Study on Reduction of Copper Smelting Slag by Carbon for Recycling into Metal Values and Cement Raw Material

Wang

Erdenebold

2020

Sustainability

View full text Add to dashboard Cite

show abstract

“…This precipitation results in an increase in the micro-hardness of the pearlite compared to that of the alloy with 0.06 wt.% Cu. ln more recent studies, Razumakovet al [16) and Bataev et al [17] have confirmed the effect of epsi lon-Cu on hardening of ferrite and pearlite in stan dard steels and other low-silicon irons. They report a large increase in micro-hardness when the copper content varies up to 3.15 wt.%, followed by little change when the copper content is higher.…”

Section: Resultsmentioning

confidence: 83%

Extrema of micro-hardness in fully pearlitic compacted graphite cast iron

Lacaze

Moussa

Thébault

et al. 2020

International Journal of Cast Metals Research

View full text Add to dashboard Cite

For improving the mechanical strength of cast irons, a fully pearlitic matrix is sought by alloying with tin, copper and manganese. This applies in particular to the compacted graphite irons considered here. While average macro-and micro-hardness values were similar for the four fully pearlitic alloys under study, it was found that high copper and low tin content showed some very high maximum micro-hardness values, significantly higher than the corresponding mean. Such values may be seen as hard points in the material that would certainly impair machinability. Discussion of the reasons for these extreme values opens directions for further studies.

show abstract

“…The nickel and copper quantities in these iron samples are different; these two elements affect the graphite morphology and refine the pearlite [18]. Cu leads to a purely pearlitic matrix, increases the hardness, and decreases the friction coefficient [21].…”

Section: Experimental Details 21 Materialsmentioning

confidence: 99%

Comparative study of abrasion via microindentation and microscratch tests of reinforced and unreinforced lamellar cast iron

Mendas

Benayoun

2018

Friction

View full text Add to dashboard Cite

This study compares micro-abrasive wear in two kinds of grey cast iron. Classical lamellar cast iron with fully pearlitic matrix (FGL1) and lamellar micro-alloyed cast iron with phosphorus and boron (FGL2) are used. FGL2 has a fully pearlitic matrix reinforced by the hard phosphorus eutectic phase. The microstructures of these two types of iron are mechanically characterized using nanoindentation tests. Vickers microindentation and microscratch tests are also performed on these iron samples. The indent and scratch images obtained via scanning electron microscopy were used to compare the scratch damage to the two kinds of iron. The friction coefficient is discussed in terms of applied load, indenter attack angle, and scratch damage. Nanoindentation tests show an improvement in graphite's mechanical properties and an increase in the matrix hardness of the FGL2, relatively to FGL1. The same damage forms for both microindentation and microscratch testing were observed for the two iron samples. However, cracking of the hard phase is observed in FGL2. The results show that the scratching of the micro-alloyed iron (FGL2) leads to less matrix damage and to an extended microploughing wear mechanism. However, at low normal load, the reinforcement of the matrix can increase the friction coefficient.

show abstract

The Structure and Properties of Cast Iron Alloyed with Copper

Cited by 14 publications

References 4 publications

A Study on Reduction of Copper Smelting Slag by Carbon for Recycling into Metal Values and Cement Raw Material

A Study on Reduction of Copper Smelting Slag by Carbon for Recycling into Metal Values and Cement Raw Material

Extrema of micro-hardness in fully pearlitic compacted graphite cast iron

Comparative study of abrasion via microindentation and microscratch tests of reinforced and unreinforced lamellar cast iron

Contact Info

Product

Resources

About