Effect of Bainitic Microstructure on Ballistic Performance of Armour Steel Weld Metal Using Developed High Ni-Coated Electrode
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
View Archive Info| Field | Value | |
| Title |
Effect of Bainitic Microstructure on Ballistic Performance
of Armour Steel Weld Metal Using Developed High
Ni-Coated Electrode
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| Creator |
Pramanick, A K
Das, H Reddy, G M Ghosh, M Nandy, S Pal, T K |
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| Subject |
Materials Charcterization
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| Description |
Welding of armour steel has gained significant importance during the past few years as recent civilian and
military requirements demand weld metal properties matching with base metal having good ballistic
performance along with high strength and toughness at -40oC as per specification. The challenge of
armour steel welding therefore lies in controlling the weld metal composition which is strongly dependent
on welding electrode/consumables, resulting in desired weld microstructure consisting of lower bainite
along with retained austenite. The performance of butt-welded armour steel joints produced by the
developed electrodes was evaluated using tensile testing, ballistic testing, impact toughness at room temperature
and subzero temperature. Microstructures of weld metals are exclusively characterized by x-ray
diffraction technique, scanning electron microscope and transmission electron microscopy with selected
area diffraction pattern. Experimental results show that weld metal with relatively lower carbon, higher
manganese and lower nickel content was attributed to lower bainite with film type of retained austenite may
be considered as a most covetable microstructure for armour steel weld metal.
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| Publisher |
ASM International
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| Date |
2018-04-09
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| Type |
Article
NonPeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://eprints.nmlindia.org/7801/1/JMEP_Welding__2018.pdf
Pramanick, A K and Das, H and Reddy, G M and Ghosh, M and Nandy, S and Pal, T K (2018) Effect of Bainitic Microstructure on Ballistic Performance of Armour Steel Weld Metal Using Developed High Ni-Coated Electrode. Journal of Materials Engineering and Peformance . |
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| Relation |
https://doi.org/10.1007/s11665-018-3272-3
http://eprints.nmlindia.org/7801/ |
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