气候变化领域集成服务门户(CCPortal): Environmental life cycle assessment of wire arc additively manufactured steel structural components

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DOI	10.1016/j.jclepro.2023.136071
	Environmental life cycle assessment of wire arc additively manufactured steel structural components
	Shah, Izhar Hussain; Hadjipantelis, Nicolas; Walter, Lulu; Myers, Rupert J.; Gardner, Leroy
发表日期	2023
ISSN	0959-6526
EISSN	1879-1786
卷号	389
英文摘要	Wire arc additive manufacturing (WAAM) enables the production of structural components with topologically optimised geometries thus leading to significant self-weight reductions for a given load-carrying capacity. A common question arises regarding the environmental performance of WAAM structural components in comparison with conventional steel structural components. Thus, a comparative cradle-to-gate life cycle assessment has been conducted where the environmental impact of producing a topologically optimised WAAM steel beam is compared with that of producing a conventional hot-rolled steel I-beam. The beams are 2 m long, simplysupported and loaded vertically at midspan. The impact of using either carbon steel or stainless steel is investigated. The results demonstrate that the carbon steel and stainless steel WAAM beams have 7% and 24%, respectively, lower climate change impact than the corresponding I-beams. It is concluded that WAAM can lead to lower CO2-eq. emissions than conventional hot-rolling, provided that mass reductions of the order of 50% (which are readily attainable) can be achieved by employing WAAM in conjunction with, for instance, topology optimisation. Furthermore, it is shown that the shielding gas contributes greatly to the environmental impact of WAAM, and that, by using higher deposition rates or by utilising renewable energy sources, the impact of WAAM can be reduced by more than 30%.
英文关键词	Additive manufacturing; Life cycle assessment; Steel structures; Sustainability; Topology optimisation; Wire arc additive manufacturing
语种	英语
WOS研究方向	Green & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000926387100001
来源期刊	JOURNAL OF CLEANER PRODUCTION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/281489
作者单位	Imperial College London; University of Cyprus
推荐引用方式 GB/T 7714	Shah, Izhar Hussain,Hadjipantelis, Nicolas,Walter, Lulu,et al. Environmental life cycle assessment of wire arc additively manufactured steel structural components[J],2023,389.
APA	Shah, Izhar Hussain,Hadjipantelis, Nicolas,Walter, Lulu,Myers, Rupert J.,&Gardner, Leroy.(2023).Environmental life cycle assessment of wire arc additively manufactured steel structural components.JOURNAL OF CLEANER PRODUCTION,389.
MLA	Shah, Izhar Hussain,et al."Environmental life cycle assessment of wire arc additively manufactured steel structural components".JOURNAL OF CLEANER PRODUCTION 389(2023).