Effect of Niobium on the Morphology of Nodular Graphite in Ductile Iron

Author:

Yan Yong Sheng1,Chang Liang1,Chen Xiang Ru1,Hua Qin1,Zhai Qi Jie1

Affiliation:

1. Shanghai University

Abstract

This paper mainly studied the effect of niobium on graphite which was quantitatively analyzed by the image analysis software. The results showed that with the amount of niobium increasing the number of nodular graphite and the percent of spheroidization in ductile iron were reduced whereas the size of nodular graphite was increased.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference7 articles.

1. Tommy Nylén: Niobium in Cast Iron. International Symposium on Niobium (2001).

2. Shadrov N.S., Korshunov L.G., Cheremnikh V. P: Metal Science and Heat Treatment, Vol. 4(25) (1983), p.284.

3. Q. J Zhai: Foundry, Vol. 10 (1998), p.41.

4. C.S. Shieh etc: AFS Transactions, Vol. 133(1993), p.365.

5. J. R Huang, in: Casting alloy metallographic atlas. Mechanical industry press (1985), Beijing.

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