Influence of Welding Consumables on Ballistic Performance of Gas Metal Arc Welded Ultra-high Hard Armor Steel Joints

2021 ◽  
Vol 10 (1) ◽  
pp. 20200150
Author(s):  
Naveen Kumar Subramani ◽  
Balasubramanian Visvalingam ◽  
Malarvizhi Sudersanan ◽  
Hafeezur Rahman Abdur ◽  
Balaguru Vadivel
Keyword(s):  
Ballistic Performance ◽  
Armor Steel ◽  
Welding Consumables ◽  
Steel Joints

Mechanical properties and fatigue behavior of CO2 laser beam welded armor steel joints

2020 ◽  
Vol 62 (7) ◽  
pp. 689-697
Author(s):  
Zulkuf Balalan ◽  
Furkan Sarsilmaz ◽  
Omer Ekinci
Keyword(s):  
Mechanical Properties ◽  
Laser Beam ◽  
Co2 Laser ◽  
Fatigue Behavior ◽  
Armor Steel ◽  
Steel Joints

Effect of buttering and hardfacing on ballistic performance of shielded metal arc welded armour steel joints

2011 ◽  
Vol 32 (2) ◽  
pp. 469-479 ◽  
Author(s):  
M. Balakrishnan ◽  
V. Balasubramanian ◽  
G. Madhusuhan Reddy ◽  
K. Sivakumar
Keyword(s):  
Ballistic Performance ◽  
Steel Joints ◽  
Armour Steel

scholarly journals Tensile properties of shielded metal arc welded ultrahigh hard armour steel joints

2020 ◽  
Vol 1 (2) ◽  
pp. 071-084
Author(s):  
V. Balaguru ◽  
V. Balasubramanian ◽  
P. Shivkumar
Keyword(s):  
Tensile Properties ◽  
Welding Process ◽  
Cost Effective ◽  
Steel Plates ◽  
Shielded Metal Arc Welding ◽  
Tracked Vehicles ◽  
Metal Arc Welding ◽  
Present Generation ◽  
Welding Consumables ◽  
Steel Joints

The present generation Armoured Tracked Vehicles (ATVs) are constructed using Rolled homogenized armour (RHA) grade steels closely confirming with AISI 4340 specifications. However, in future Armoured Tracked Vehicles (ATVs), the overall weight of ATVs has to be reduced enormously and hence, the designers have prescribed to employ Ultra High Hard Armour (UHA) steels for the construction. Welding is considered to be one of the important fabrication methods in ATVs construction. However, welding of UHA steels is highly challenging due to higher hardness and higher carbon content. Shielded Metal Arc Welding (SMAW) is among the most widely employed welding process in the construction of ATVs since it is more versatile and cost-effective. Armour grade steels are welded conventionally using Austenitic Stainless Steel (ASS) consumables to eliminate the serious problems of hydrogen induced cracking. Hence, in this investigation, an attempt has been made to study the influence of ASS welding consumables on tensile properties and hardness of UHA steel joints made by SMAW process. UHA steel plates having 15 mm thickness were welded by SMAW process using five different ASS consumables (having different Creq/Nieq ratio). Tensile properties (unnotched and notched) of the welded joints were evaluated. From this investigation, it was observed that the joint welded using ASS consumable (having higher Creq/Nieq ratio) exhibited superior tensile properties as result of the evolution of ferrite phase with vermicular and globular morphology in the austenite matrix at weld metal region.

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