| 引用本文: | 舒大禹,赵祖德,胡传凯,康凤,王艳彬,宁海青.Mg-4Zn-3Y合金高温阻燃特性[J].材料科学与工艺,2010,18(3):396-400.DOI:10.11951/j.issn.1005-0299.20100322. |
| SHU Da-yu,ZHAO Zu-de,HU Chuan-kai,KANG Feng,WANG Yan-bin,NING Hai-qing.Flame-retarded character of Mg-4Zn-3Y alloy[J].Materials Science and Technology,2010,18(3):396-400.DOI:10.11951/j.issn.1005-0299.20100322. |
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| Mg-4Zn-3Y合金高温阻燃特性 |
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舒大禹1,2, 赵祖德1,2, 胡传凯1,2, 康凤1,2, 王艳彬1,2, 宁海青1,2
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1.中国兵器工业第五九研究所;2.国防科技工业精密塑性成形技术研究应用中心
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| 摘要: |
| 为了改善镁合金在熔铸及加工过程中抗氧化燃烧性能,用合金化阻燃方法在Mg-4Zn合金中添加适宜的Y元素制备了阻燃效果优异的Mg-4Zn-3Y合金.采用俄歇电子能谱仪、X射线衍射仪和扫描电镜(SEM+EDS)研究了氧化膜的显微形貌、合金元素分布及其物相组成.结果表明,Mg-4Zn-3Y合金在高温下暴露于大气中时,燃点提高250℃,合金表面生成一层以Y2O3为主的氧化膜,改善镁合金氧化膜的粘附性,提高高温抗氧化和燃烧能力.基于高温氧化热力学分析,建立了Mg-4Zn-3Y合金在高温下的氧化物理模型.Mg-4Zn-3Y合金能在1065K时于大气中保温30min而不燃烧,实现了低Y元素含量镁合金在大气条件下的无保护熔炼. |
| 关键词: Mg-4Zn-3Y合金 阻燃特性 燃点 热力学 |
| DOI：10.11951/j.issn.1005-0299.20100322 |
| 分类号:TG146.22 |
| 基金项目:总装预研基金资助项目(51312010502) |
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| Flame-retarded character of Mg-4Zn-3Y alloy |
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SHU Da-yu1,2, ZHAO Zu-de1,2, HU Chuan-kai1,2, KANG Feng1,2, WANG Yan-bin1,2, NING Hai-qing1,2
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1.No.59 Institute of China Ordnance Industry,Chongqing 400039,China;2.Precision Forming of Science Technology and Industry for National Defense,Chongqing 400039,China
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| Abstract: |
| In order to improve the performance of antioxidant combustion of magnesium alloy during casting,we prepared high performance Mg-4Zn-3Y alloy with Y element added by use of the method of alloying flame-resistance.The morphology of oxide film,elements distribution and the alloy phase were characterized by Auger electron spectrometer,X-ray diffractometer and SEM + EDS.The results indicate that it generate Y2O3 oxide film when the alloy is exposed to atmosphere at high temperature.The adhesivity,inoxidability at high temperature and burning capability of the alloy oxide film are improved.The physical model of Mg-4Zn-3Y alloy was established based on thermomechanical analysis at high temperature.It is indicated that the alloy will not burn within 30 minutes at 1065 K.It realizes the unprotected casting of magnesium alloy with Y element added in the atmospheric environment. |
| Key words: Mg-4Zn-3Y alloy flame-retarded character ignition point thermodynamic |
