Analysis of Large-Dimension Rare Earth Inclusion in Steels by Metallographic Microscope and TEM

Hong Xia Mou; Xin Hua Li; Sai Tang Liu

doi:10.4028/www.scientific.net/AMM.182-183.288

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 182-183Analysis of Large-Dimension Rare Earth Inclusion...

Analysis of Large-Dimension Rare Earth Inclusion in Steels by Metallographic Microscope and TEM

Abstract:

The mechanism of formation of the large-dimension rare-earth(RE) inclusions in steels is discussed by TEM(Transmission Electron Microscope) taking steel 5CrNiMo with addition of RE as example. The two or several large-dimension RE inclusions come out independent nucleation which grow up into a 0.3~0.5 micron in length, then attract and integrate into the large-dimension with 1~5 micron in length. Though the dimension difference between the RE inclusions is varied, the shape is spherical or approximate spherical or elliptical, but no sharply corneous, because RE can promote the inclusion shape variation through metamorphism.

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Periodical:

Applied Mechanics and Materials (Volumes 182-183)

Pages:

288-291

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.182-183.288

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Online since:

June 2012

Authors:

Hong Xia Mou, Xin Hua Li, Sai Tang Liu

Keywords:

Deteriorate, Inclusion, Large-Dimension, Nucleation, Re

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References

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