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- Title
Düşük Alaşımlı Çeliklere Kaynakla Kaplama Yapılarak Balistik Özellik Kazandırılması.
- Authors
Ozdemir, Ugur; Sozeri, Mustafa; Fındık, Tayfun
- Abstract
While many methods were used in the development of armor materials, welding was preferred in this study. Although welding is a process that mainly used for the purpose of joining two parts, it has become one of the methods that directly affect and improve the properties of the parts today. Sufacing is a type of welding method that covering surface of worn or produced metal parts with hardfacing electrodes to increase wear resistance, service life or other properties. In this study, the properties of S355JR low alloy steel plate were increased by hardfacing electrodes and its ballistic performance and hardness properties were investigated. Electric arc welding (SMAW) was done manually with a 4 mm diameter Fe-Cr-C based covered electrodes. Welding process was done in the form of double pass, by rotating 90 degrees between layers. The alloying elements contained in the hardfacing electrode have increased the hardness and ballistic properties of the material. For this reason, in this study, it is aimed to develop a replacement product for the armors used today while reducing weight, and to reuse the armor steels by using the specified welding consumable for repair purposes. After hardfacing, the hardness values increased approximately 8 times. In ballistic performance, it has absorbed the kinetic energy of the bullet at 820 m/s, which is suitable for protection at NATO STANAG III, EN 1522 FB7, VPAM 9 levels.
- Publication
Gazi Journal of Engineering Sciences (GJES) / Gazi Mühendislik Bilimleri Dergisi, 2022, Vol 8, Issue 2, p168
- ISSN
2149-4916
- Publication type
Article
- DOI
10.30855/gmbd.0705019