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首页> 外文会议>Pacific Rim International Conference on Advanced Materials and Processing(PRICM 5) pt.1; 20041102-05; Beijing(CN) >Fluxless Recycling of Die-Cast AZ91 Magnesium Alloy Scrap
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Fluxless Recycling of Die-Cast AZ91 Magnesium Alloy Scrap

机译：压铸AZ91镁合金废料的无助焊剂回收

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摘要

Magnesium die-casting has experienced dramatic growth over the past decade and the recycling of magnesium scrap has become increasingly important due to the generation of substantial quantities of scrap in the die-casting process. Magnesium is a readily recyclable material and the recycling of magnesium scrap is crucial in making magnesium more competitive. The main concern associated with using the secondary magnesium is the high level of Fe content and oxide inclusions that are detrimental to the corrosion and mechanical properties of the secondary alloy. In this study, the die-cast specimens were produced using the recycled class 1 scrap which is refined by means of Ar bubbling and Mn addition without using refining fluxes, and their mechanical properties and corrosion characteristics were investigated. The results showed that the tensile properties of the secondary AZ91 alloy were equivalent to those of the primary magnesium alloy after appropriate treatments. The corrosion resistance of the recycled magnesium was also found to increase by Ar bubbling and Mn addition.
机译：在过去的十年中，镁压铸件经历了惊人的增长，由于压铸过程中产生了大量的废料，镁废料的回收利用变得越来越重要。镁是一种易于回收的材料，镁废料的回收对于提高镁的竞争力至关重要。与使用辅助镁有关的主要问题是高含量的铁含量和氧化物夹杂物，这不利于辅助合金的腐蚀和机械性能。在这项研究中，压铸样品是使用回收的1级废料生产的，该废料通过Ar鼓泡和Mn的添加而无需使用精炼剂进行精炼，并研究了它们的机械性能和腐蚀特性。结果表明，经过适当处理后，AZ91辅助合金的拉伸性能与镁合金的拉伸性能相同。还发现，通过Ar鼓泡和Mn的添加，回收的镁的耐蚀性提高。

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