HREM Study on Heterogeneous Formation of Titanium Carbonitride in Ti Microalloyed Steel

Yan Zhi Lou

doi:10.4028/www.scientific.net/AMM.456.541

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 456HREM Study on Heterogeneous Formation of Titanium...

HREM Study on Heterogeneous Formation of Titanium Carbonitride in Ti Microalloyed Steel

Abstract:

HREM study on Ti-carbonitride particles in Ti-microalloyed steels has been carried out. It shows that many tiny Ti-carbonitride precipitates formed on nitride, sulfide or oxide particles. These carbonitrides possess twin relationship or have continuous interface with the particles existed already. The results imply that the twinning and epitaxial growth may be the important mechanisms for Ti-carbonitride formation in the steels. These nucleation mechanisms can highly lower the interfacial energy of new precipitates, resulting in the nucleation rate greatly increased. Therefore, the mechanical properties of the Ti-microalloyed steels are effectively improved.

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Periodical:

Applied Mechanics and Materials (Volume 456)

Pages:

541-544

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.456.541

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Online since:

October 2013

Authors:

Yan Zhi Lou

Keywords:

Heterogeneous Formation, Titanium Carbonitride, Titanium Steel

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