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| 1420铝锂合金形变热处理锻块组织与性能研究 | |
| 引用本文： | 孙廷富,冯延珠,郭峰,张全孝,程新,李洪.1420铝锂合金形变热处理锻块组织与性能研究[J].兵器材料科学与工程,2003,26(6):14-18. |
| 作者姓名： | 孙廷富 冯延珠 郭峰 张全孝 程新 李洪 |
| 作者单位： | 1. 兵器工业,第五二研究所,包头,014034 2. 西安交通大学,材料科学与工程学院,西安,710049 3. 内蒙古北方重工,技工学校,包头,014030 4. 兵器工业,第617厂教育培训中心,包头,014030 |
| 摘 要： | 采用小试块 ,进行 14 2 0铝锂合金形变热处理工艺、组织及性能研究。结果表明 ,形变热处理锻块的力学性能比自由锻造锻块、锻后淬火锻块的力学性能有较大提高 ,其力学性能为σb4 90MPa,σ0 .2 310MPa,δ12 .2 % ;其微观组织为较均匀的再结晶组织上分布着第二相δ′(Al3 Li)、β′(Al3 Zr)、T(Al2 MgLi) ;其拉伸断口为典型的沿晶 +韧窝型 |
| 关 键 词： | 1420铝锂合金 形变热处理 力学性能 组织 |
| 文章编号： | 1004-244X(2003)06-0014-05 |
| 修稿时间： | 2003年5月27日 |
Study on microstructures and properties of thermomechanically treated forgings of 1420 Al - Li alloy |
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| SUN Ting-fu ,FENG Yan-zhu ,Guo Feng ,ZHANG Quan-xiao ,CHENG Xin ,LI Hong.Study on microstructures and properties of thermomechanically treated forgings of 1420 Al - Li alloy[J].Ordnance Material Science and Engineering,2003,26(6):14-18. | |
| Authors: | SUN Ting-fu FENG Yan-zhu Guo Feng ZHANG Quan-xiao CHENG Xin LI Hong |
| Affiliation: | SUN Ting-fu 1,FENG Yan-zhu 2,Guo Feng 1,ZHANG Quan-xiao 1,CHENG Xin 3,LI Hong 4 |
| Abstract: | The technology of thermomechanical heat treatment, the microstructures and properties with small sample blocks of the 1420 Al-Li alloy have been studied. The results show that the mechanical properties of thermomechanically treated forgings have a greater increase than that of free-forged ones and quenched ones after forging, and their mechanical properties: σ b 490MPa, σ 0.2 310MPa, δ 12.2%, and their microstructures are uniformly recrystallized and the microstructures are distributed with the secondary phases such as δ′(Al 3Li)?β′(Al 3Zr)?T(Al 2MgLi); And also their tensile fracture cuts emerge in a kind of typically grain boundary-following fracture+elongation nest fracture. |
| Keywords: | Al-Li alloy deformation heat treatment mechanical property microstructure |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
