Acta Metallurgica Sinica (English Letters) ›› 2003, Vol. 16 ›› Issue (6): 478-482 .

• Research Articles • Previous Articles     Next Articles

INFLUENCE OF TIN ON THE HOT DUCTILITY OF A LOW-CARBON STEEL

Z.X.Yuan[1], J.Jia[1], A.M.Guo[2], D.D.Shen[1], S.H.Song[1], J.Liu[1]   

  1. [1]SchoolofMaterialsandMetallurgy,WuhanUniversityofScienceandTechnology,Wuhan430081,China [2]ResearchInstituteofWuhanIron＆SteelCompany,Wuhan430080,China
  • Received:2002-09-18 Revised:2002-12-28 Online:2003-12-25 Published:2009-10-10
  • Contact: Z.X.Yuan

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Abstract: The influence of tin on the hot ductility of a 0.15wt steel is investigated using a continuous-casting thermal simulator with three cooling rates. Tin can apparently deteriorate the hot ductility of the steel. Non-equilibrium grain boundary segregation of tin occurs during cooling and plays an important role in reducing the hot ductility of the steel. There is a critical cooling rate for the Sn segregation being between 5 and 20K/s.

Key words: hot ductility, non-equilibrium segregation, steel,

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