自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 25    No. 8    August 2018

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Environmental impact assessment of magnesium alloy automobile hub based on life cycle assessment
YI Qiu-ping(易秋平)1, TANG Chang-ping(唐昌平)2

1. Institute for Hunan Innovation & Development Research, Hunan University of Science and Technology,Xiangtan 411201, China;
2. Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology of Hunan Province, Hunan University of Science and Technology, Xiangtan 411201, China

Abstract:In order to find out the impact of aluminum alloy hub replaced by the magnesium alloy hub on environment, the resource consumption, energy consumption and pollutant emission during hub production and their service life of the two types of hubs are investigated based on the life cycle assessment (LCA) theory. The results indicate that the adverse impact on environment can be effectively reduced by the application of magnesium alloy hubs. Compared with aluminum alloy hubs, the global warming potential (GWP) and human toxicity potential (HTP) are reduced by 39.6% and 24.0%, respectively. CO2 is the main pollutant in the life cycles of the two kinds of hubs, which is generated throughout the whole life cycle including the fabrication process and the service life, while the pollutants of particles mainly come from the fabrication stage. Compared with the aluminum alloy hubs, the green effect brought by magnesium alloy hubs is mainly due to the reduction of fuel consumption caused by weight loss.

 

Key words: life cycle assessment theory; magnesium alloy; aluminum alloy; hub; environmental impact

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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