Life cycle assessment of metal alloys for structural applications

Katja Malovrh Rebec (Author), Boštjan Markoli (Author), Blaž Leskovar (Author)

Abstract

The study compared environmental footprints of two types of Al-alloys: well-known 5083 aluminium alloy with magnesium and traces of manganese and chromium in its composition. This material is highly resistant to seawater corrosion and the influence of industrial chemicals. Furthermore, it retains exceptional strength after welding. The comparisons were made to an innovative alloy where the aluminium based matrix is reinforced by metastable quasicrystals (QC), thus avoiding magnesium in its composition. Furthermore, we checked other aluminium ingots' footprints and compared European average and Germany country specific production data. Environmental footprints were assessed via cradle to gate life cycle assessment. Our findings normalized to 1 m2 plate suggest, that newly proposed alloy could save around 50 % in value of parameters abiotic resources depletion of fossil fuels, acidification, eutrophication, global warming potential and photochemical ozone creation potential if we compare Qc5 to 6 mm 5083 alloy plate. Only abiotic resources depletion of elements and ozone depletion parameters increase for Qc5 compared to 6 mm 5083 alloy plate.

Keywords

okoljski odtis;LCA;aluminijeve zlitine;environmental footprints;Al-alloys;

Data

Language:	English
Year of publishing:	2018
Typology:	1.06 - Published Scientific Conference Contribution (invited lecture)
Organization:	ZAG - Slovenian National Building and Civil Engineering Institute
Publisher:	IOP Publishing
UDC:	62
COBISS:	2357095
ISSN:	1757-899X
Views:	36
Downloads:	24
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary keywords:	okoljski odtis;LCA;aluminijeve zlitine;
Source comment:	Nasl. z nasl. zaslona; Opis vira z dne 30. 3. 2018; 012003;
Pages:	str. 1-8
Issue:	ǂVol. ǂ329
Chronology:	2018
DOI:	10.1088/1757-899X/329/1/012003
ID:	23376213