• Balakrishnan M M.Kumarasamy College of Engineering, Department of Mechanical Engineering, Thalavapalayam, Karur-639 113.
  • Balasubramanian V Centre for Materials Joining and Research (CEMAJOR) ,Department of Manufacturing Engineering, Annamalai University, Annamalai Nagar - 608 002 ,Tamil Nadu, India.


Armour steel, Ballistic testing, Microstructure, Hardness


Armour-grade quenched and tempered (Q&T) steel is used for protection of military and non-military vehicles, because of its high energy-absorbing properties. Q&T steels used for armour applications require high strength, notch toughness, and hardness. The deformation and fracture behaviour of welded joints made from quenched and tempered steel closely conforming to AISI 4340 were investigated. The problems encountered in the past were reduced by depositing a soft austenitic stainless-steel buttering layer in between the BM and the hardfaced layer in the AHA joints(A-ASS filler, H – Hardfacing filler) . This study was planned to explore the insights of  microstructural behaviour of AHF (A- ASS filler, H-Hardfacing filler, F- Low Hydrogen Ferritic filler). This article reports the changes observed in the microstructural features along the projectile trajectory in a multilayered armour steel joint AHF JOINT (A- ASS filler, F-LHF filler, H – Hardfacing filler) after ballistic testing.



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Ade F (1991), “Ballistic qualification of armour steel weldments”, Weld. J Vol. 70, 53–56.

Madhusudhan Reddy V Mohandas T (1996), “Ballistic performance of high-strength low-alloy steel”, weldments. J Mater. Process. Technol.Vol. 57, 23–30.

Madhusudhan Reddy G Mohandas T Tagore G R N (1995), “Weldability studies of high-strength low-alloy steel using austenitic fillers”, J. Mater. Process. Technol,Vol. 49, 213–228.

Alkemade S J (1996), “The weld cracking susceptibility of high hardness armour steel”, Defense Science and Technology Organization, Australia, AR No: 009-659: 1–17.

Magudeeswaran G Balasubramanian V Madhusudhan Reddy G (2008), “Hydrogen induced cold cracking studies on armour grade high strength, quenched and tempered steel weldments”,Int.J. Hydrogen Energy, Vol.33, 1897–1908.

Madhusudhan Reddy G Mohandas T Sarma D S (2003), “Cold cracking studies on low alloy steel weldments effect of filler metal composition”, Sci. Technol, Weld. Join,Vol. 8(6), 407–414.

Madhusudhan Reddy V Mohandas T Papukutty K K (1998),“Effect of Welding process on the ballistic performance of high-strength low alloy steel weldments”,J.Mater. Process. Technol, Vol. 74, 27–35.

Madhusudhan Reddy G Mohandas T Papukutty K K (1999), “Enhancement of ballistic capabilities of soft welds through hard facing”, Int. J. Impact Eng. Vol.22, 775–791.

Mohandas T Madhusudan Reddy G Satish Kumar B (1999), “Heat affected zone softening in high-strength low-alloy steels”, J. Mater. Process. Technol. Vol.88, 284–294.

Jena P K Ramanjeneyulu K Siva Kumar K Balakrishna Bhat T (2009) ,“Ballistic studies on layered structures”, Mater. Des. Metallogr. Microstruct. Anal, Vol.30 (6), 1922–1929.

Balakrishnan M Balasubramanian V Madhusudhan Reddy G Sivakumar K (2011), “Effect of buttering and hardfacing on ballistic performance of shielded metal arc welded armor steel joints”, Mater. Des.Vol. 32, 469–479.

Balakrishnan V Balasubramanian V Madhusudhan Reddy G Sivakumar K (2013), “Effect of hardfaced interlayer thickness on ballistic performance of armour steel welds”, Mater. Des.Vol.44, 59–68.

Odeshi A G Bassim M N (2009),“High strain-rate fracture and failure of a high strength low alloy steel in compression”, Mater. Sci. Eng. A Vol.525, 96–101.

Maweja V Stumpf W (2006),“Fracture and ballistic-induced phase transformation in tempered martensitic low-carbon armour steels”, Mater. Sci. Eng. A Vol. 432, 158–169.

Deya S Børvik T Hopperstad O S Leinum J R Langseth M (2004) ,“The effect of target strength on the perforation of steel plates using three different projectile nose shapes”, Int. J. Impact Eng.Vol.30, 1005–1038.

Milman Y V Chugunova I V Goncharova V A Goncharuk N A Yefimov (2006), “Physics of deformation and fracture at impact loading and Penetration”, Int. J. Impact Eng.Vol. 33, 452–462.

Murr L E Ferreyra E T Papu S Garcia E P Sanchez J C Huang W Rivas J M Kennedy C Ayaa A Niou C S (1996), “Novel deformation processes and microstructures involving ballistic penetrator formation and hypervelocity impact and penetration phenomena”, Mater. Charact.Vol. 37, 245–276 .

Magudeeswaran G Balasubramanian V Balasubramanian T S Madhusudhan Reddy G (2008), “Effect of welding processes and consumables on tensile and impact properties of high strength quenched and tempered steel joint”, J. Iron Steel Res. Vol.15(6), 87–94.

ASTM E-384-05 (2005), “Standard test method for micro indentation hardness of materials”.




How to Cite

Balakrishnan M and Balasubramanian V, “CHARACTERISATION OF BALLISTICALLY TESTED ARMOUR STEEL JOINTS”, JME, vol. 10, no. 1, pp. 063–068, Mar. 2015.




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