Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-25T15:35:09.232Z Has data issue: false hasContentIssue false
  • English
  • Français

Contributions to the Study of the Solidification Mechanism and of the Influence of Structure on the Properties of Compacted/Vermicular Graphite Cast Iron

Published online by Cambridge University Press:  21 February 2011

I. Riposan ,
M. Chisamera ,
L. Sofroni  and
V. Brabie
I. Riposan
Affiliation:
Politechnical Institute of Bucharest,Splaiul Independentei 313, sector 6,Bucharest,ROMANIA
M. Chisamera
Affiliation:
Politechnical Institute of Bucharest,Splaiul Independentei 313, sector 6,Bucharest,ROMANIA
L. Sofroni
Affiliation:
Politechnical Institute of Bucharest,Splaiul Independentei 313, sector 6,Bucharest,ROMANIA
V. Brabie
Affiliation:
Politechnical Institute of Bucharest,Splaiul Independentei 313, sector 6,Bucharest,ROMANIA
Get access

Abstract

In the paper we have analysed some aspects of the structural,mechanical, technological and casting properties of compacted/vermicular graphite(C/VG)cast iron,with reference to our works published in the past 10 years.As regards the primary structure(eutectic solidification)we were interested in the composition and growth conditions of eutectic cells, of C/VG formation,on the basis of Mg and Si distribution,of intergranular phases,in different cooling conditions.We have also analysed the carbide formation and the inverse chill tendency. C/VG is characterised by form factors(compactness)on whose basis we propose some new typical graphite forms. The tendency to ferritic shells formation in the case of C/VG is compared with that recorded for NG,coral graphite,and FG type A,B,D. We note the possibility of favouring pearlite Dy thermal treatment,alloying and the use of a treatment-alloy with Al,Ti and other elements with a pearlitic action.We have also analysed the influence of wall thickness,cross-section geometry,holding time,anti- spheroidizing elements,nature of casting mould upon structure.Finally,we present a synthesis of the applicational properties,based on our data.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 34: Symposium – Physical Metallurgy of Cast Iron , 1984 , 131
Copyright
Copyright © Materials Research Society 1985

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Donoho, C.K. in: Modern Castings, 40, (July 1961), p. 65–71.Google Scholar
2. Schelleng, R.D., British Patent nr.1.069.058, 26 April 1966.Google Scholar
3. Patent Austria, Nr. 263.833.Google Scholar
4. Nechtelberger, R.,Puhr, H.,Nesselrode, J.B. and Nakayasu, A.,49 CIATF,(1982)Google Scholar
5. Day, M.G. in BCIRA Journal, (Ianuary 1970).Google Scholar
6. Gilbert, G.N.J.. British Patent, Nr.1.316.438, 9 May 1970.Google Scholar
7. Proceedings of the SCI2, Georgi Publishing Co.,St.Saphorin, (1975).Google Scholar
8. Sofroni, L.,Riposan, I. and Chira, I. in: Proceedings of the SC12,(1975).Google Scholar
9. Liu, P.C.,Loper, C.R.,Kimura, T. and Park, H.K. in:Giesserei-Praxis, 13–14(1984)Google Scholar
10. Campomanes, E.,Goller, R. in:AFS Transactions,83,(1975),p.55–62.Google Scholar
11. Riposan, I.,Sofroni, L.. Vermicular graphite Cast Iron,E.T.,Bucharest,1984.Google Scholar
12. Riposan, I. in:Bul.I.P.Buc. Seria Chim.-Met.,Tom XL,2,(1978),p.107–112.Google Scholar
13. Riposan, I.,Sofroni, L.,Chisamera, M. in:Giesserei-Praxis,21,(1978).Google Scholar
14. Riposan, I.,Cardenas, E.,Sofroni, L.,Toboc, P.,Chisamera, M..51 CIATF,(1984).Google Scholar
15. Riposan, I.,Chisamera, M.,Sofroni, L. in:Metalurgia,(1984).Google Scholar
16. Riposan, I.,Sofroni, L.,Chisamera, M. in:Metalurgia,5,(1982),p.239–251.Google Scholar
17. Sofroni, L.,Riposan, I. in:Giesserei-Praxis,17,(1976),p.247–252.Google Scholar
18. Riposan, I.,Sofroni, L. in: Giesserei-Praxis,9,(1977),p.125–131.Google Scholar
19. Riposan, I.,Sofroni, L. in:AFS Int.Cast Met.J.,3,l,(1978),p.23–29.Google Scholar
20. Riposan, I.,Tudor, G. in:Giesserei-Praxis,9,(1982),p.135–140.Google Scholar
21. Riposan, I,.,Sofroni, L. in:Giesserei-Praxis,19,(1977),p.289–294.Google Scholar
22. Tsuda, M.,Furuse, M.,Saito, M. in:Imono,6,(1983),p.339–345.Google Scholar
23. Riposan, I. in:Metalurgia,3,(1975),p.138–148.Google Scholar
24. Ohide, T.,Ohira, G.,Chida, A. in:Imono,7,(1980),p.418–425.Google Scholar
25. Riposan, I.,Chisamera, M.,Sofroni, L. in:Metalurgia,10,(1983),p.511–519.Google Scholar
26. Chisamera, M.,Gheorghe, I. in: Metalurgia,4,(1983), p.185–189.Google Scholar
27. Tanaka, Y.,Saito, H.,Ikawa, K. in: Imono,4,(1981),p.187–192.Google Scholar
28. Kondo, Y.,Yasue, K. in:Imono,12,(1980),p.675–680.Google Scholar
29. Tsutsumi, N.,Imamura, M.,Sakuma, Y. in:Imono,9,(1980),p.536–541.Google Scholar
30. Riposan, I..Mares, C.,Moldovan, L. in:Giessereitechnik, (1984).Google Scholar
31. Riposan, I.,Nicolescu, S. in: Giessereitechnik,4,(1983),p.113–116.Google Scholar
32. Riposan, I.,Sofroni, L.,Chisamera, M., 46 CIATF,Madrid,(1979)Google Scholar
33. Riposan, I.,Sofroni, L.,Chisamera, M., 48 CIATF,Varna, (1981).Google Scholar
34. Riposan, I.,Chisamera, M.,Sofroni, L.,Brabie, V. in:Metalurgia,10,(1983), p. 498–505.Google Scholar
35. Riposan, I.,Sofroni, L.,Chisamera, M. in:Metalurgia,5,(1984).Google Scholar