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

Authors :
Sai Tang Liu
Xin Hua Li
Hong Xia Mou
Source :
Applied Mechanics and Materials. :288-291
Publication Year :
2012
Publisher :
Trans Tech Publications, Ltd., 2012.

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.

Details

ISSN :
16627482
Database :
OpenAIRE
Journal :
Applied Mechanics and Materials
Accession number :
edsair.doi...........b682272f49b8f09023975dd2b3c62e86
Full Text :
https://doi.org/10.4028/www.scientific.net/amm.182-183.288