基于余氏固体与分子经验电子理论,利用平均原子晶胞模型计算了Ti3Al基合金中延性β相的价电子结构,给出了其价电子结构信息--相结构因子nA,σN,F.用相结构因子nA,σN,F分析讨论了β相价电子结构与稳定性的关系及合金元素的合金化行为.认为β相及含不同合金元素的β相的精细价电子结构是金属间化合物α2-Ti3Al合金化与Ti3Al基合金选择Nb,V,Mo 3种合金元素作为常用合金化元素的微观本质原因.
参考文献
| [1] | 秦高梧;郝士明 .Intermetallica Compounds of Ti-Al System[J].稀有金属材料与工程,1995,24(02):1. |
| [2] | Chan K S .TougheningMechanismsinTitaniumAluminides[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1993,24A:569. |
| [3] | Wu X;Bowen P .Effects of Microstructure on the Fracture Toughness of Ti3Al-Based Titanium Aluminides[J].Metallurgical and Materials Transactions,1997,28A:1357. |
| [4] | Singh A K;Banerjee D .Transformationsina2+γTitaniumAluminideAlloysContainingMolybdenum:PartI.SolidificationBehavior[J].Metallurgical and Materials Transactions,1997,28A:1735. |
| [5] | 余瑞璜 .Empirical Electron Theory in Solids and Molecules[J].Chinese Science Bulletin,1978,23(04):217. |
| [6] | Guo Yongquan;Yu Ruihuang;Zhang Ruilin et al.Calculation of Magnetic Properties and Analysis of Valence Electronic Structures of LaT13-xAlx(T=Fe,Co) Compounds[J].Journal of Physical Chemistry B,1998,102(01):9. |
| [7] | Zhilin Liu;Zhilin Li;Zhenguo Sun .Catalysis Mechanism and Catalyst Design of Diamond Growth[J].Metallurgical and Materials Transactions,1999,30A:2757. |
| [8] | 张瑞林.固体与分子经验电子理论[M].Changchun:Jilin Science and Technology Press,1993:313. |
| [9] | 刘志林.合金价电子结构与成分高计[M].Changchun:Jilin Science and technology Press,1990:28. |
| [10] | 刘志林;李志林;刘伟东.界面价电子结构与界面性能[M].北京:科学出版社,2002:45. |
| [11] | 刘伟东,刘志林,屈华.Ti-4.5Al-5Mo-1.5Cr合金增韧的价电子理论研究[J].金属学报,2002(12):1246-1250. |
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%