Acta Metallurgica Sinica (English Letters) ›› 1999, Vol. 12 ›› Issue (4): 401-407.

• Research paper • Previous Articles     Next Articles

PHASE STRUCTURE FACTOR AND INTERFACE CONJUNCTION FACTOR OF CAST IRON AND ITS COMPOSITION DESIGN

Z.L.Li,Z.L.Liu ,F.Y.Li,X.P.Yang and Z.G.Gu Departmentof Materials Science and Engineering ,Liaoning Institute of Technology,Jinzhou 121001 ,China   

  • Received:1999-08-25 Revised:1999-08-25 Online:1999-08-25 Published:2009-10-10

Abstract: Theempiricalelectrontheory of solidsand molecules( EET) and theimproved TFDtheory wereapplied tocalculatethe phasestructurefactorsand interfaceconjunction factorsofcom mon alloying elementsincastiron. Akind of Si- Mo- Cu ductileiron with rareearth Mg asnodularizer was designed accordingtothese valenceelectron structure parameters. Actual applicationtestsshow thatthelongevity of thisiron is 1.5 timesof thatof high manganesesteel. This accordance of theoretical results and actual effectsshows the composition design methodcan beused in othercastiron research.

Key words: phasestructure factor, interface conjunction factor, ductile iron, wear resistance, composition design