Selective Laser Melted M300 Maraging Steel—Material Behaviour during Ballistic Testing

Materials

Ireneusz Szachogłuchowicz¹  Krzysztof Grzelak¹  Janusz Kluczyński¹  Janusz Torzewski¹  Jakub Łuszczek¹  Bartosz Fikus² 

[1] Faculty of Mechanical Engineering, Institute of Robots & Machine Design, Military University of Technology, 2 Gen. S. Kaliskiego Street, 00-908 Warsaw, Poland;Faculty of Mechatronics, Armament and Aerospace, Institute of Armament Technology, Military University of Technology, 2 Gen. S. Kaliskiego Street, 00-908 Warsaw, Poland;

关键词: additive manufacturing;    selective laser melting;    ballistic testing;    M300 steel;    structural analysis;   

DOI  :  10.3390/ma14102681

来源: DOAJ

【 摘 要 】

Significant growth in knowledge about metal additive manufacturing (AM) affects the increase of interest in military solutions, where there is always a need for unique technologies and materials. An important section of materials in the military are those dedicated to armour production. An AM material is characterised by different behaviour than those conventionally made, especially during more dynamic loading such as ballistics testing. In this paper, M300 maraging steel behavior was analysed under the condition of ballistic testing. The material was tested before and after solution annealing and ageing. This manuscript also contains some data based on structural analysis and tensile testing with digital image correlation. Based on the conducted research, M300 maraging steel was found to be a helpful material for some armour solutions after pre- or post-processing activities. Conducted solution annealing and ageing increased the ballistic properties by 87% in comparison to build samples. At the same time, the material’s brittleness increased, which affected a significant growth in fragmentation of the perforated plate. According to such phenomena, a detailed fracture analysis was made.

【 授权许可】

Unknown