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| 钪对AZ91合金组织和性能的影响 | |
| 引用本文： | 孔凡校,姚素娟,胡迎春,褚丙武.钪对AZ91合金组织和性能的影响[J].有色金属(冶炼部分),2013(6):51-53. |
| 作者姓名： | 孔凡校 姚素娟 胡迎春 褚丙武 |
| 作者单位： | 1. 广西工学院职业技术教育学院,柳州,545006 2. 河南神火集团有限公司,河南商丘476000;中国铝业股份有限公司中铝科学院,北京100036 3. 中国铝业股份有限公司郑州研究院,郑州,450041 |
| 基金项目： | 广西自然科学基金项目（2011GXNSFC018005）；广西科技大学（筹）科学基金项目（校科自1261105） |
| 摘 要： | 研究钪在AZ91合金中的相组成、形貌及其对合金组织和性能的影响。结果表明,钪在合金中生成Al3Sc高温耐热相,细化了枝晶组织。钪添加量为0.6%时,室温和200℃的抗拉强度分别为265.4MPa和161.1MPa。钪可显著降低合金自腐蚀电流密度,但腐蚀电位只有轻微增加。 |
| 关 键 词： | AZ91 镁合金 钪 微观组织 力学性能 腐蚀性能 |
| 收稿时间： | 2012/11/27 0:00:00 |
| 修稿时间： | 2012/11/28 0:00:00 |
Effect of Scandium on Microstructure and Property of AZ91 Magnesium Alloy |
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| KONG Fan-xiaosub_ssub_e,YAO Su-juansub_s,CHU Bing-wusub_ssub_e and HU Ying-chunsub_ssub_e.Effect of Scandium on Microstructure and Property of AZ91 Magnesium Alloy[J].Nonferrous Metals(Extractive Metallurgy),2013(6):51-53. | |
| Authors: | KONG Fan-xiao[sub_s][sub_e] YAO Su-juan[sub_s] CHU Bing-wu[sub_s][sub_e] and HU Ying-chun[sub_s][sub_e] |
| Affiliation: | School of Vocational and Technical Education,Guangxi University of Technology,,, |
| Abstract: | The phase composition and microstructure of scandium in AZ91alloy were studied.The effects of scandium on the microstructure and property of AZ91alloy were investigated.The results show that scandium generates Al3Sc phase and refines the dendritic structure of crystal grain.The optimum tensile strength at room temperature and 200℃are improved to 265.4MPa and 161.1MPa respectively with the additive amount of scandium of 0.6%.The current density of self-corrosion of alloy drops markedly after addition of scandium,while the corrosion potential rises slightly. |
| Keywords: | AZ91 magnesium alloy scandium microstructure mechanical property corrosion property |
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