研究了铈及有害杂质含量对2090及8090铝锂合金薄板延伸率和再结晶状态的影响, 得出了再结晶组织参数与板材横向延伸率之间的关系. Ce的微合金化作用在含一定量Fe、 Si杂质的2090合金和含一定量Na、 K杂质的8090合金中表现得比较明显, 当各种杂质共存且含量较高时, Ce对8090合金的延伸率仍有一定的有利作用. 随Ce及杂质含量变化, 若两类合金的再结晶体积、粗晶体积及晶粒平均宽度增加, 则其延伸率下降, 随晶粒长宽比增加, 2090合金的延伸率增加而8090合金的延伸率下降.
参考文献
| [1] | 孟亮;郑修麟 .现代铝锂合金的疲劳与断裂特性[J].稀有金属,1995,19(06):424. |
| [2] | Kim N J;Lee E W .Effect of T1 precipitate on the anisotropy of Al-Li alloy 2090[J].ACTA METALLURGICA ET MATERIALIA,1993,41(03):941. |
| [3] | Wanhill R J H .Status and prospects for aluminium-lithium alloys in aircraft structures[J].International Journal of Fatigue,1994,16(01):3. |
| [4] | 孟亮;郑修麟 .稀土元素对含碱金属杂质2090合金断裂特性的影响[J].西北工业大学学报,1995,13(04):558. |
| [5] | Meng L;Zheng X L .Tension characteristics of nothched specimens for Al-Li-Cu-Zr alloy sheets with various cerium contents[J].Metallurgical and Materials Transactions,1996,27A(10):3089. |
| [6] | Meng LA.;Tian L.;Zheng XL. .EFFECT OF ALKALI METAL IMPURITIES AND CERIUM MODIFICATION ON THE FATIGUE BEHAVIOUR OF 8090 ALLOY SHEETS[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1995(1/2):191-196. |
| [7] | Meng L;Zheng X L .Effect of cerium and impurities on fatigue and fracture properties of 8090 alloy sheets[J].Sci Metall Mat,1995,33(01):27. |
| [8] | 刘世祥.Effect of Impurities and Ce on the Anisotropic Behavior of 8090 Alloy Sheet[J].JOURNAL OF RARE EARTHS,1996(01):41. |
| [9] | 孟亮;耿东生;郑修麟 .有害杂质及Ce对8090合金薄板不同加载方向断裂特性的影响[J].金属学报,1995,31(01):A40. |
| [10] | Lavernia E J;Grant N J .Review aluminium-lithium alloys[J].Journal of Materials Science,1987,22(05):1521. |
| [11] | Lynch S P .Fracture of 8090 Al-Li plate-Ⅰ. short transverse fracture toughness[J].Materials Science and Engineering,1991,A136:25. |
| [12] | Blankenship C P;Starke E A .Mechanical behavior of double-aged AA8090[J].Metallurgical and Materials Transactions,1993,24A(04):833. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%