Ballistic Efficacy of Carbide Free High Strength Nano-Structured Bainitic Armour Steels.
Abstract
Carbide free nano-structured bainitic steels typically have strength more than 2.0 GPa and impact toughness of 7 J or less. Most of this class of steels have sluggish kinetics and takes 16-72 h for complete bainitic transformation. The present work discusses key perspectives in developing carbide free nano-structured bainitic steel having strength more than 2.0 GPa and toughness more than 15 J. Further, ballistic evaluation of newly developed carbide free nano-structured bainitic steels having strength more than 2.0 GPa and high toughness of 20 J was carried out to understand the adaptability of these steels in combat vehicle applications. A comparison is made between newly developed high strength and tough carbide free nano-structured bainitic steels with typical martensite based ARMOX 500 class of armour steels. The developed nano-structured bainite showed ballistic performance much superior to ARMOX 500 steel. Monolithic plates of bainite provide complete protection against 7.62 AP projectiles at an areal density of 120 kgm-2. The ballistic efficiency of monolithic plates was further enhanced by using perforated geometrical configurations.
Subjects
BAINITIC steel; CARBIDES; ARMORED military vehicles; MARTENSITE; STEEL
Description
Indexed in scopushttps://openurl.ebsco.com/EPDB%3Agcd%3A8%3A28280776/detailv2?sid=ebsco%3Aplink%3Aresult-item&id=ebsco%3Adoi%3A10.14429%2Fdsj.73.18634&bquery=Defence%20Science%20Journal&page=4&link_origin=www.google.com |
Article metrics10.31763/DSJ.v5i1.1674 Abstract views : | PDF views : |
Cite |
Full Text Download
|
Conflict of interest
“Authors state no conflict of interest”
Funding Information
This research received no external funding or grants
Peer review:
Peer review under responsibility of Defence Science Journal
Ethics approval:
Not applicable.
Consent for publication:
Not applicable.
Acknowledgements:
None.