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HomeSolid State PhenomenaSolid State Phenomena Vol. 294Microstructural and Hardness Evolution of New...

Microstructural and Hardness Evolution of New Developed OPH Steels

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Abstract:

Nowadays, by increase in using structural materials, the high temperature properties of these materials are became an important issue within different aspects of engineering. The new Oxide Precipitation Hardened (OPH) steel generated by the authors based on Fe-Al-O matrix which prepared by mechanical alloying and hot consolidation. These new OPH steels showed a better oxidation resistant and creep, compare to similar ones. In order to investigate the thermomechanical and microstructure of these materials, a series of different tests were performed on three different OPH steels variant which developed and manufactured by the authors. The results show that the heating temperature has a significant influence on these properties while almost total recrystallization of grains and subgrains were observed during the investigation.

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Functional Materials and Metallurgy II

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Periodical:

Solid State Phenomena (Volume 294)

Pages:

92-97

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.294.92

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Online since:

July 2019

Authors:

Omid Khalaj*, Hana Jirková, Kateřina Opatová, Jiří Svoboda

Keywords:

Al₂O₃, Fe-Al, Grain Growth, Hardness, OPH Steels

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© 2019 Trans Tech Publications Ltd. All Rights Reserved

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