2026-04-17T15:06:00Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/76642024-07-25T07:49:40Zcom_10259_9476com_10259.4_106com_10259_2604com_10259_4201com_10259_5086col_10259_9477col_10259_4505

00925njm 22002777a 4500 dc Santiago Herrera, Mario author Ibáñez Porras, Jesús author De Pamphilis, Marco author Alegre Calderón, Jesús Manuel author Tamayo Ramos, Juan Antonio author Martel Martín, Sonia author Barros García, Rocío author 2023-04 Environmental awareness and the necessary reduction in costs in industrial processes has facilitated the development of novel techniques such as Additive Manufacturing, decreasing the amount of raw materials and energy needed. The longing for improved materials with different and enhanced properties has resulted in research efforts in the Metal Matrix Composites field. These two novelties combined minimise environmental impacts and costs without compromising technical properties. Two technologies can feed Additive Manufacturing techniques with metallic powder: Gas Atomization and High Energy Ball Milling. This study provides a comparative Life Cycle Assessment of these technologies to produce one kilogram of metallic powder for the Directed Energy Deposition technique: a Ti6Al4V alloy, and a Ti6Al4V-TiC Metal–Matrix Composite, respectively. The LCA methodology is according to ISO 14040:2006, and large amounts of information on the use of raw materials, energy consumption, and environmental impacts is provided. Different impact categories following the Environmental Footprint methodology were analysed, showing a big difference between both technologies, with an 87.8% reduction of kg CO2 eq. emitted by High Energy Ball Milling in comparison with Gas Atomization. In addition, an economic analysis was performed, addressing the viability perspective and decision making and showing a 17.2% cost reduction in the conventional process. 2071-1050 http://hdl.handle.net/10259/7664 10.3390/su15086649 2071-1050 Life cycle assessment Metal–matrix composite Additive manufacturing Titanium Gas atomization High energy ball milling Comparative Life Cycle Assessment and Cost Analysis of the Production of Ti6Al4V-TiC Metal–Matrix Composite Powder by High-Energy Ball Milling and Ti6Al4V Powder by Gas Atomization