Fe－C－Mn合金奥氏体的价电子结构分析  

AN ANALYSIS OF VALENCE ELECTRON STRUCTURE OF Fe-C-Mn ALLOYING AUSTENITE

作　　者：朱瑞富[1] 吕宇鹏[1] 陈传忠[1] 李士同[1] 王世清[1] 张福成[1] 

机构地区：[1]山东工业大学,燕山大学

出　　处：《金属学报》1996年第6期561-564,共4页Acta Metallurgica Sinica

基　　金：山东省自然科学基金

摘　　要：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.

关 键 词：奥氏体 价电子结构 铁碳锰合金 耐磨合金 

分 类 号：TG135.6[一般工业技术—材料科学与工程]