摘要
以固体与分子经验电子理论（EET）和改进的Thomas－Fermi－Dirac（TFD）理论为基础，以合金奥氏体、合金马氏体及其界面为例，给出了相结构因子nA，F，S和界面结合因子ρ，Δρ，σ的计算方法计算了常用合金元素在0．2％C和1．0％C钢中的相结构因子和界面结合因子用相结构因子和界面结合因子阐述了强韧性良好的20CrNi3钢和20Cr2Ni4钢的强韧化机制和耐磨性极高的ZGMn13耐磨钢的耐磨机制，并用相结构因子和界面结合因子预言了一种强韧性更高的Cr－Ni－W－V－0．2％C钢，结果与实际符合良好．
The calculation methods of phase structure factors nA, F, S and interface conjunction factors ρ, Δρ, σ are advanced with alloyed austenite, martensite and the interface between them as examples on the basis of the empirical electron theory of solids and molecules and the improved Thomas-Fermi-Dirac (TFD) theory. The phase structure factor and interface conjunction factor of common alloying elements in 0.2%C and 1.0%C steels are calculated and are used to explain the strengthening-toughening mechanism of Cr-Ni-0.2%C steels and the wear resistance mechanism of 13.0%Mn-1.0%C steel. The above factors are also successfully used to predict the steel Cr-Ni-W-V-0.2%C having higher strength-toughness.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第7期673-681,共9页
Acta Metallurgica Sinica
基金
国家自然科学基金!59631060
辽宁省科学技术基金!962006
973001
关键词
相结构因子
界面结合因子
计算方法
合金设计
phase structure factor
interface conjunction factor
calculation method
alloy design
