Microstructure and Mechanical Properties of Gray Iron Cylinder Blocks Casting

Almanza, Alejandra; Pérez, M.J.; Almanza, E.

doi:10.1007/bf03355609

Cited by 6 publications

(3 citation statements)

References 1 publication

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“…A similar microstructure of gray cast iron without spheroidizing treatment has been reported elsewhere. 16,17) Since the size and distribution of graphite and ferrite in the casting made from sea sand mold and river sand mold are similar, therefore, it is concluded that both castings have undergone a similar cooling rate during solidification. Mechanical properties of gray cast iron depend on its microstructure in terms of type and size of graphite flakes and ferrite phase in the perlite matrix.…”

Section: Microstructural Analysismentioning

confidence: 95%

Optimization of Sea Beach Sand Composition for Cast Iron Foundry Applications

et al. 2023

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The increasing demand and exorbitant use of river bed sand in foundries over the years have led to its depletion at an alarming rate. Consequently, many states in India have imposed severe restrictions on the mining of riverbed sand. Therefore, an effort is made to explore the potential use of sea sand for cast iron foundry applications. Experiments were performed for optimizing the composition of molding sand with respect to functional properties namely, strength, mold hardness, and permeability. The optimum composition of molding sand comprised of 8.33 wt% bentonite and 3.12 wt% moisture, and 88.54 wt% sea sand. Trials were conducted in a local foundry to ascertain the suitability of using a mixture of sea sand, bentonite, and water for producing defect-free gray iron casting. The trial was successful and parts were accepted for production purposes.

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Section: Microstructural Analysismentioning

confidence: 95%

Optimization of Sea Beach Sand Composition for Cast Iron Foundry Applications

et al. 2023

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“…As the most widely used cast iron material, grey cast iron (GCI) is broadly used in shipbuilding, automobile, machine tools, and other manufacturing industries due to its good casting performance, vibration resistance, wear resistance and cutting performance [1][2][3]. It is very important to improve the performance of GCI with the increasingly high requirements [4,5].…”

Section: Introductionmentioning

confidence: 99%

Effect of V-Mn-Cr inoculant on microstructure and mechanical properties of grey cast iron

Ji,

Du,

Cao

et al. 2023

Ironmaking & Steelmaking

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In this study, the effects of different composition V-Mn-Cr inoculants on the microstructure and mechanical properties of GCI were investigated through Optical microscope (OM), Scanning electron microscope (SEM), Energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD), etc. The results showed that the optimum quantity of inoculant was 7% V, 1% Mn and 6% Cr, and compared with the commercial inoculant samples, the tensile strength, Brinell hardness, and elastic modulus of the V-Mn-Cr inoculant samples increased by 16.7%, 14.2%, and 12.8%, respectively. V-Mn-Cr inoculants were found to refine austenite, graphite, pearlite and eutectic cells size, reduce pearlite lamellar spacing, and increase pearlite and eutectic cells number, thus improving mechanical properties. In addition, graphite nucleation substance may consist of oxides (SiO 2 , FeO, Cr 2 O 3 ), carbides (SiC, TiC), sulfides (MnS, FeS), and XO•SiO 2 silicates (X: Mn, Fe, Ca).

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“…The new cast iron was then defined as compacted graphite iron (CGI) due to the tadpole graphite (spheroidal graphite with a small tail) [3]. CGI has good casting process performance, a small tendency of shrinkage cavity and porosity, high mechanical properties, and thermal fatigue properties [4][5][6]. Therefore, the outstanding combination of mechanical properties and low production cost of CGI has made it widely used for producing complicated castings.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Inclusions, and Elemental Distribution of a Compacted Graphite Iron Alloyed by Ce and La Rare Earth (RE) Elements

Fan

Zhu

Lian

et al. 2022

Metals

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This work investigates the microstructure and inclusions of a compacted graphite iron (CGI) alloyed by Ce and La rare earth (RE) elements. In our study, alloying elemental distribution and solute segregation were characterized by methods of secondary ion mass spectrometry (SIMS) and a three-dimensional atom probe (3DAP) with high sensitivity and spatial resolution. RE sulfide, MgS, carbide, and composite inclusions formed during solidification and provided heterogeneous nucleation cores for the nucleation of the graphite. Significant solute clustering in the matrix, coupled with the segregation of solute to grain boundaries, was observed. C, Mn, Cr, and V were soluted in cementite and promoted the precipitation of cementite, while Si was found to be soluted in ferrite. Cu is usually distributed uniformly in ferrite, but some Cu-rich atom clusters were observed to segregate towards the interface between the ferrite and cementite, stabilizing the pearlite. In addition, P, as a segregation element, was enriched along the boundaries continuously. The RE elements participated in the formation of inclusions, consuming harmful elements such as As and P, and also promoted the heterogeneous nucleation of the graphite and segregated, in the form of solute atoms, at its interfaces.

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Microstructure and Mechanical Properties of Gray Iron Cylinder Blocks Casting

Cited by 6 publications

References 1 publication

Optimization of Sea Beach Sand Composition for Cast Iron Foundry Applications

Optimization of Sea Beach Sand Composition for Cast Iron Foundry Applications

Effect of V-Mn-Cr inoculant on microstructure and mechanical properties of grey cast iron

Microstructure, Inclusions, and Elemental Distribution of a Compacted Graphite Iron Alloyed by Ce and La Rare Earth (RE) Elements

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