Ballistic Behaviour of Austempered Compacted Graphite Iron Perforated Plates

Janjatovic, Petar; Baloš, Sebastian; Radisavljević, Igor; Dramićanin, Miroslav D.; Cekic, Olivera Eric; Šidjanin, Leposava

doi:10.14429/dsj.69.14010

Cited by 6 publications

(3 citation statements)

References 10 publications

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“…Further savings could be achieved by utilizing an austempered compacted cast iron (ACGI), which does not possess spheroidal graphite but contains graphite of a short and broad lamellar type due to a lower amount of spheroidisers/nodularisers (cerium and magnesium) [108]. The ACGI compared to ADI material has lower production costs and a lower amount of magnesium, thus reducing the application of CRM.…”

Section: Ballistic Properties Of the Adimentioning

confidence: 99%

Solutions of Critical Raw Materials Issues Regarding Iron-Based Alloys

et al. 2021

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The Critical Raw Materials (CRMs) list has been defined based on economic importance and supply risk by the European Commission. This review paper describes two issues regarding critical raw materials: the possibilities of their substitution in iron-based alloys and the use of iron-based alloys instead of other materials in order to save CRMs. This review covers strategies for saving chromium in stainless steel, substitution or lowering the amounts of carbide-forming elements (especially tungsten and vanadium) in tool steel and alternative iron-based CRM-free and low-CRM materials: austempered ductile cast iron, high-temperature alloys based on intermetallics of iron and sintered diamond tools with an iron-containing low-cobalt binder.

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Section: Ballistic Properties Of the Adimentioning

confidence: 99%

Solutions of Critical Raw Materials Issues Regarding Iron-Based Alloys

et al. 2021

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“…They also found that the presence of pores inhibited the formation of shear bands on perforated plates. Balos et al [7] evaluated the properties of isothermally quenched ductile iron at different temperatures to determine its applicability as a perforated plate. The study found that 7 mm and 9 mm perforated plates with higher hardness and lower ductility produced by austenitic tempering of isothermally quenched ductile iron at a lower temperature of 275℃ can effectively break the bullet core, thus significantly reducing the penetration ability of the bullet core.…”

Section: Introductionmentioning

confidence: 99%

Research on ballistic protection characteristics of perforated plates made of different steel materials for 12.7 mm penetrator projectile

Shi,

Hong,

Han

et al. 2024

J. Phys.: Conf. Ser.

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To compare the ballistic protection characteristics of perforated plates made of different steel materials against 12.7 mm perforating ammunition, the ballistic gun, light curtain velocity measurement system, and high-speed camera were used to study its ballistic performance, and the ballistic protection, perforated plate damage area, core fracture and core deflection characteristics of perforated plates made of different armor steel materials were compared. The results show that the ballistic protection performance of C-2 and H-1 perforated plates is better than that of C-1 and C-3 perforated plates, the protection performance of C-1 and C-3 is equivalent, and the protection coefficient of H-1 can reach or even exceed that of C-2. The hole damage area of an H-1 perforated plate is larger than that of a circular perforated plate, and the number of bullet core fractures is more, but its crack arrest performance is poor. The damage area of a single interconnection hole in perforated plates of different armor steel materials meets the linear relationship, and its linear slope can characterize the degree of hole loss. The damage of a single interconnection hole with hexagonal holes is greater than that of perforated plates with circular holes. At the same time, the projectile deflection angle of perforated plates made of different armor steel materials also conforms to the linear relationship, and the fitting linear slope can measure the degree of core deflection. The higher the hardness of perforated plates with circular holes, the greater the core deflection, while the degree of core deflection of hexagonal holes is greater than that of perforated plates with circular holes.

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“…Research gravitates towards the achievement of the best possible mechanical properties while saving the cost and weight of the final product, with a number of benefits by itself. The material that meets many of the above requirements is cast iron [2]. Cast irons have several advantages compared with cast steel such as lower volume shrinkage during solidification and 20-40% lower manufacturing cost, better vibration damping, and wear resistance [3].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Water Concentration in Ethyl Alcohol on the Environmentally Assisted Embrittlement of Austempered Ductile Irons

Janjatovic

Cekic

Šidjanin

et al. 2021

Metals

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Austempered ductile iron (ADI) is an advanced cast iron material that has a broad field of application and, among others, it is used in contact and for conveyance of fluids. However, it is noticed that in contact with some fluids, especially water, ADI material becomes brittle. The most significant decrease is established for the elongation. However, the influence of water and the cause of this phenomenon is still not fully understood. For that reason, in this paper, the influence of different water concentrations in ethyl alcohol on the mechanical properties of ADI materials was studied. The test was performed on two different types of ADI materials in 0.2, 4, 10, and 100 vol.% water concentration environments, and in dry condition. It was found that even the smallest concentration of water (0.2 vol.%) causes formation of the embrittled zone at fracture surface. However, not all mechanical properties were affected equally and not all water concentrations have been critical. The highest deterioration was established in the elongation, followed by the ultimate tensile strength, while the proof strength was affected least.

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Ballistic Behaviour of Austempered Compacted Graphite Iron Perforated Plates

Cited by 6 publications

References 10 publications

Solutions of Critical Raw Materials Issues Regarding Iron-Based Alloys

Solutions of Critical Raw Materials Issues Regarding Iron-Based Alloys

Research on ballistic protection characteristics of perforated plates made of different steel materials for 12.7 mm penetrator projectile

The Effect of Water Concentration in Ethyl Alcohol on the Environmentally Assisted Embrittlement of Austempered Ductile Irons

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