标题：Difference factor between inner- And interlayer bond forces in M3C pattern carbides
作者：Ye, Yifu ;Fan, Tongxiang ;Shang, Yuxia ;Chen, Zongmin
作者机构： Coll. of Mat. Sci. and Engineering, Shandong University of Technology, Jinan 250061, China
来源：Science in China, Series E: Technological Sciences
摘要：The valence electron structures and bond energy of M3C pattern carbides in white cast irons are calculated on the basis of Yu Ruihuang's empirical electron theory of solids and molecules (E. E. T.) by means of bond length difference method (BLD). Based on the results, a difference factor θ for measuring the difference between inner- and interlayer bond forces is proposed to study the influence of alloying elements Cr, Mn and W on the morphology of Fe3C during solidification.