Development of a New Armor Steel and its Ballistic Performance

Atapek, Ş. Hakan

doi:10.14429/dsj.63.1341

Cited by 24 publications

(11 citation statements)

References 26 publications

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“…As seen in Figure 5(b) and 5(c), RHA and AR 500 consist of fully martensitic phase. According to the study by [22,41,42], martensitic transformation process for RHA and AR500 was enhanced by manganese due to decrement of critical quench speed. Manganese was found to be highest in AR500.…”

Section: Hardness Test Resultsmentioning

confidence: 99%

“…With proper heat treatment process, the precipitation of carbide particles can contribute to high strength in the steel structure [21]. It is also noticed that boron, carbon, manganese, and nickel elements play a main role to improve ballistic properties of armour material [22]. In this study, mechanical properties of three different steels i.e.…”

Section: Introductionmentioning

confidence: 87%

“…The ballistic performance of armour steel depends on the matrix having tempered martensitic or bainitic structure [22]. This is achieved after application of austenisation, quenching, and tempering on low alloyed steel of AISI 4340, RHA, and AR500 [24][25][26].…”

Section: Microstructuresmentioning

confidence: 99%

See 2 more Smart Citations

Mechanical properties and microstructures of steel panels for laminated composites in armoured vehicles

Jamil

Aripin

Sajuri³

et al. 2022

Int. J. Automot. Mech. Eng.

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This paper present the study about the mechanical properties of two high strength low alloy steels for replacing the current rolled homogeneous armour (RHA) for ballistic application. High strength low alloy steel has been widely adapted as a ballistic plate in light armoured vehicle. However, the current used RHA plate is very heavy thus restricted the manoeuvrability of the armoured vehicle. The aim of this study is to find materials suitable to be used for production of composite protection panel which is lighter yet has similar mechanical properties to RHA. The tensile strength and hardness of AISI 4340 and AR500 steels were evaluated and compared to that of RHA and the results were analysed based on its chemical compositions and microstructural observation. Values of these properties are primarily reflected by its microstructures and chemical compositions. Therefore, microscopic observation of microstructural arrangement and phases are essential in understanding the hardness and stress-strain behaviour of these metals. Results indicate similar tensile properties were observed in RHA and AR500 but different properties obtained for AISI 4340. Tensile strength of RHA and AR500 were 1750 MPa and 1740 MPa respectively followed by AISI 4340 at 1020 MPa. AISI 4340 steel exhibited the highest elongation at 20.6% compared to RHA and AR500 at 13.3 and 12.5%, respectively. Higher degree of carbon content in fine martensitic structure of RHA and AR500 led to high hardness. Imperfections in RHA and AR500 were also removed by hot rolling process as indicated by white banding that cause higher in tensile strength. Retained austenite and coarse microstructure of AISI 4340 steel contributed to higher ductility compared to AR500 and RHA. Therefore the tensile properties of RHA and AR500 were found similar due to its microstructure behaviour. This similarity allows AR500 to be utilised as alternatives to RHA in armour plate application.

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Section: Hardness Test Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 87%

See 1 more Smart Citation

Mechanical properties and microstructures of steel panels for laminated composites in armoured vehicles

Jamil

Aripin

Sajuri³

et al. 2022

Int. J. Automot. Mech. Eng.

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“…Armor materials are designed to hold the bullet penetration and others, in which the metallurgical structures become the crucial factor. This material has also designed to be able to break and hold projectiles fired at high velocity [1,2] due to the good hardness and impact resilience [3,4]. The kinds of armor materials used for military applications are steel, ceramics, polymers, and composites [5], although steel is the most widely used due to its ease processing, lower production costs, high strength, good toughness, and 3rd ICTVET 2018 heat treatment capabilities [6].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties Analysis of Quenched and Tempered AISI 4340 Steel

Basori¹,

Surocaena²,

Dwiyati³

et al. 2019

KSS

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“…Q&T steels are used in armour applications for combat vehicle construction as they possess high hardness, excellent toughness, and high strength to weight ratio, and toughness, i:e, the combination of strength and ductility, and hardness of the material [9]. The working principle of a typical armour material depends on the reality of stopping the attack by the sharp tip of -steel or other heavy metal-based penetrators, with its high hardness [10]. Adequate toughness is called for, to avoid cracking tendency and consequent disintegration of the material [11].…”

Section: Introductionmentioning

confidence: 99%

Quenching and tempering parameter on Indonesian hot rolled plate steel for armour steel

et al. 2018

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Armour steel is a high strength and hardness steel used to protect damage by an object, individual or vehicle from the direct pressure of projectile. This steel used for military and commercials equipment in Indonesia and produced out of hot rolled plate steel made by PT. Krakatau Steel (Persero) Cilegon, Banten, Indonesia. By using quench (with water sprayed) and temper heat treatment produced Quenched & Tempered Steels. The aim of the study to obtain optimum quenching and tempering parameter in hardness and impact energy of HRP Steel. Method of this study by optimizing austenite temperature; austenite holding time; temper temperatures; hardness and impact energy. The result of this study is austenite temperatures 900 o C (held 45 minutes) and temper temperatures 125 o C (held 45 minutes). Prediction of both hardness and impact energy is 569.96 HVN (536.00 BHN) and 30.50 J respectively.

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Development of a New Armor Steel and its Ballistic Performance

Cited by 24 publications

References 26 publications

Mechanical properties and microstructures of steel panels for laminated composites in armoured vehicles

Mechanical properties and microstructures of steel panels for laminated composites in armoured vehicles

Microstructure and Mechanical Properties Analysis of Quenched and Tempered AISI 4340 Steel

Quenching and tempering parameter on Indonesian hot rolled plate steel for armour steel

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