微量Er对Al-Mg-Mn合金组织与力学性能的影响

张晋武; 白朴存; 侯小虎; 李博

doi:10.11868/j.issn.1005-5053.2014.5.004

微量Er对Al-Mg-Mn合金组织与力学性能的影响

doi: 10.11868/j.issn.1005-5053.2014.5.004

内蒙古工业大学材料科学与工程学院,呼和浩特 010051

基金项目:

国家自然科学基金项目（11362014，10962005，10562003）;高等学校博士学科点专项科研基金（20131514110004）

详细信息

通讯作者:
白朴存（1967—），男，博士，教授，主要从事稀土及有色金属研究，（E-mail）pcbai@imut.edu.cn。

中图分类号: TG146.2⁺1
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出版历程
- 收稿日期: 2014-02-10
- 修回日期: 2014-06-30
- 刊出日期: 2014-10-01

Effects of Minor Erbium on Microstructure and Mechanical Properties of Al-Mg-Mn Alloy

College of Science and Engineering,Inner Mongolia University of Technology,Huhhot 010051,China

摘要

摘要: 采用半连续铸造法制备Al-6.8Mg-0.3Mn和Al-6.8Mg-0.3Mn-0.4Er（质量分数，%）两种合金铸锭。合金铸锭经均匀化处理多道次热轧成4mm薄板；研究不同退火温度下微量Er对Al-Mg-Mn合金微观组织与力学性能的影响。结果表明：添加微量Er能显著提高Al-Mg-Mn合金强度，改善合金强度和塑性的配合，能明显提高合金的抗再结晶能力和室温力学性能；Al-Mg-Mn-Er合金板材经300℃退火1h后可获得理想的综合力学性能，其b、s与分别为421MPa，310MPa和18.3%。
- Al-Mg-Mn-Er合金 /
- 稳定化退火 /
- 再结晶 /
- 显微组织
Abstract: Both Al-6.8 Mg-0.3Mn and Al-6.8Mg-0.3Mn-0.4Er (mass fraction/%) alloy ingots were prepared with semi-continuous casting process, and the alloy ingots were rolled into 4mm thick sheets after homogenization treatment and multipass hot rolling. The effect of Er on microstructure and mechanical properties of Al-Mg-Mn alloy sheets at different annealing temperatures were investigated. The results show that the addition of minor Er can improve the strength of the Al-Mg-Mn alloy significantly as well as the coordination between strength and plasticity of the alloy. Besides, the ability of anti-recrystallization and mechanical properties at room temperature are largely enhanced. Finally by annealing at 300℃ for 1h, the Al-Mg-Mn-Er alloy sheet obtains the optimum application values of b, s and , which are 421MPa, 310MPa and 18.3% respectively.
- Al-Mg-Mn alloy /
- stabilizing annealing /
- recrystallization /
- microstructure

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参考文献(14)

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文章访问数: 1389
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微量Er对Al-Mg-Mn合金组织与力学性能的影响

doi: 10.11868/j.issn.1005-5053.2014.5.004

通讯作者: 白朴存（1967—），男，博士，教授，主要从事稀土及有色金属研究，（E-mail）pcbai@imut.edu.cn。

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Effects of Minor Erbium on Microstructure and Mechanical Properties of Al-Mg-Mn Alloy

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通讯作者:
白朴存（1967—），男，博士，教授，主要从事稀土及有色金属研究，（E-mail）pcbai@imut.edu.cn。