利用“固体与分子经验电子理论”的键距差分析法建立了Ｆｅ—Ｃ—Ｍｎ合金奥氏体的价电子结构．在碳的质量分数为１．６％的Ｆｅ—Ｃ—Ｍｎ合金中，含Ｃ，Ｍｎ结构单元的计算结果表明，Ｆｅ~ｃ，Ｆｅ~ｆ和Ｍｎ原子分别处于Ｂ种杂化的第１６，１８和１０阶，碳原子处于第６阶．同时提高Ｃ，Ｍｎ含量，可使Ｃ—Ｍｎ强键数目增多，进而导致奥氏体稳定性提高，加工硬化能力增强．
The valence electron structure of Fe-C-Mn alloying austenite containing 1.6% C(mass fraction) has been established by using bond length difference (BLD) method of the empirical electron theory of solids and molecules. The experimental results show that in unit cell containing C and Mn atoms, Fe~c, Fe~f and Mn atoms are on the 16th, 18th and 10th hybrid levels of B-type hybridization states respectively, and the carbon atom is on its 6th hybrid level. The simultaneous increase in C and Mn content will increase the number of the strongest C-Mn bond, thus lead to the increase in austenitic stability and work hardening capacity.
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | 余瑞璜．科学通报,1978:23(4):2172刘志林,张瑞林,王斌．中国科学,1989 |
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