Influence of the composition on the environmental impact of a casting magnesium alloy

Garcia Gutiérrez, I. (Universidad de Zaragoza) ; Elduque, D. (Universidad de Zaragoza) ; Pina, C. (Universidad de Zaragoza) ; Tobajas, R. ; Javierre, C. (Universidad de Zaragoza)

Resumen: The influence of the composition of magnesium alloys on their environmental impact was analyzed. In order to perform a more accurate environmental impact calculation, life cycle assessment (LCA) with the ReCiPe 2016 Endpoint and IPCC 2013 GWP (100 y) methodology was used, taking the EcoInvent AZ91 magnesium alloy dataset as reference. This dataset has been updated with the material composition range of several alloys included in the European standard EN 1753:2019. The balanced, maximum, and minimum environmental impact values were obtained. In general, the overall impact of the studied magnesium alloys varied from 3.046 Pt/kg to 4.853 Pt/kg and from 43.439 kg CO2 eq./kg to 55.427 kg CO2 eq./kg, depending on the composition. In the analysis of maximum and minimum environmental impacts, the alloy that had the highest uncertainty was 3.5251, with a range of ±7.20%. The element that contributed the most to increase its impact was silver. The AZ91 alloy, provided by the EcoInvent dataset, had a lower environmental impact than all the magnesium alloys studied in this work. The content of critical raw materials (CRMs) was also assessed, showing a high content in CRMs, between 89.72% and 98.22%.

Idioma: Inglés

DOI: 10.3390/su122410494

Año: 2020

Publicado en: Sustainability (Switzerland) 12, 24 (2020), 10494 [1-20]
ISSN: 2071-1050

Factor impacto JCR: 3.251 (2020)

Categ. JCR: ENVIRONMENTAL SCIENCES rank: 124 / 273 = 0.454 (2020) - Q2 - T2
Categ. JCR: ENVIRONMENTAL STUDIES rank: 60 / 125 = 0.48 (2020) - Q2 - T2
Categ. JCR: GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY rank: 30 / 44 = 0.682 (2020) - Q3 - T3
Categ. JCR: GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY rank: 6 / 9 = 0.667 (2020) - Q3 - T3

Factor impacto SCIMAGO: 0.611 - Energy Engineering and Power Technology (Q1) - Environmental Science (miscellaneous) (Q1) - Renewable Energy, Sustainability and the Environment (Q1) - Management, Monitoring, Policy and Law (Q1) - Geography, Planning and Development (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/T08-17R
Financiación: info:eu-repo/grantAgreement/ES/MINECO/RTC-2017-5965-6

Tipo y forma: Article (Published version)

Área (Departamento): Área Ingeniería Mecánica (Dpto. Ingeniería Mecánica)
Área (Departamento): Área Expresión Gráfica en Ing. (Dpto. Ingeniería Diseño Fabri.)