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 4 0 Cr Mn合金奥氏体的价电子结构 ,研究了合金中 Cr,Mn对其 C-曲线的影响。分析表明 :4 0钢中加入 Cr,Mn元素后 ,较强的 C-Me强键络阻碍了合金奥氏体的相变 ,从而提高了合金的淬透性 ,并引起 C曲线的拖曳效应。
The valence electron structure of 40CrMn alloying austenite has been established by using bond length difference(BLD) method of the empirical electron theory of solids and molecules. The effects of Cr and Mn in alloy on the C\|curves have been studied. It is shown that since Cr and Mn melt into austenite, the combining strength among atoms was enhanced. The higher C\|Me combining energy resists transformation of solid state austenite and then the transformation point was decreased, which was beneficial to improving the quenching properties of alloy and leading to C\|curves dragging effect.
出处
《材料科学与工程》
CSCD
2000年第2期64-68,共5页
Materials Science and Engineering
