| 01420Al-Li合金超塑性研究 |
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| 引用本文： | 罗智辉,张新明,杜予晅,叶凌英. 01420Al-Li合金超塑性研究[J]. 邵阳学院学报(自然科学版), 2006, 3(3): 52-55 |
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| 作者姓名： | 罗智辉 张新明 杜予晅 叶凌英 |
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| 作者单位： | 中南大学,材料科学与工程学院,湖南,长沙,410083 |
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| 基金项目： | 国防科技预研项目;国家高技术研究发展计划(863计划);湖南省自然科学基金 |
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| 摘 要： | 采用单向拉伸对01420Al-Li合金进行超塑性研究。发现该合金经过适当的机械热处理后能获得良好的超塑性．显微组织观察表明，经过双级时效处理的01420Al-Li合金，基体内弥散分布大量的大颗粒S相粒子，在大压下率横轧后，经再结晶退火后获得稳定的、等轴的细晶组织，因而超塑效应显著．细小而分散的空洞是得到超塑性的必需的组织成分．
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| 关 键 词： | 01420铝锂合金 超塑性 机械热处理 |
| 文章编号： | 1672-7010（2006）03-0052-04 |
| 收稿时间： | 2006-09-03 |
| 修稿时间： | 2006-09-03 |
Study on the Superplasticity of 01420 Al-Li Alloy |
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| LUO Zhi-hui,ZHANG Xin-ming,DU Yu-xuan,YE Ling-ying. Study on the Superplasticity of 01420 Al-Li Alloy[J]. Journal of Shaoyang University(Natural Science Edition), 2006, 3(3): 52-55 |
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| Authors: | LUO Zhi-hui ZHANG Xin-ming DU Yu-xuan YE Ling-ying |
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| Abstract: | The superplasticity of 01420 Al- Li alloy was studied by means of simple tension, and good superplasticity of the alloy was found after suitable thermomechanical processing. Microstructural observation shows that abundant large S- phase particles distributed dispersedly in 01420 Al- Li alloy after two-stage ageing, and steady and equiaxed fine grains were obtained by recrystallization annealing after large rolling reductions, so the superplasticity of the alloy was obvious. Small and dispersed cavities were the necessary structural component to get superplasticity. |
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| Keywords: | 01420 Al - Li Alloy Superplasticity thermomechanical processing |
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