Microstructure evolution through heavy compression aided by thermodynamic calculations

Farideh Hajiakbari; Mahmoud Nili-Ahmadabadi; Behrang Poorganji; Tadashi Furuhara

doi:10.1007/s10853-010-4305-y

Microstructure evolution through heavy compression aided by thermodynamic calculations

Farideh Hajiakbari, Mahmoud Nili-Ahmadabadi, Behrang Poorganji, Tadashi Furuhara

Materials Design Division

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The induced martensite transformation in a dual-phase bainitic ferrite-austenite steel during heavy compression was studied by thermodynamic computations. Compression tests were conducted at temperatures of 298 and 573 K on the rectangle samples at the strain rate of 0.001 s^-1. The samples were deformed to 40 and 70% of their original thickness. It was found that 70% compression of the steel at room temperature resulted in transformation of retained austenite to martensite, which is in agreement with thermodynamic calculations. Additionally, heavy compression resulted in the formation of fine grains with high angle grain boundaries which confirms grain refinement.

Original language	English
Pages (from-to)	4689-4695
Number of pages	7
Journal	Journal of Materials Science
Volume	45
Issue number	17
DOIs	https://doi.org/10.1007/s10853-010-4305-y
Publication status	Published - 2010 Sept

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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title = "Microstructure evolution through heavy compression aided by thermodynamic calculations",

abstract = "The induced martensite transformation in a dual-phase bainitic ferrite-austenite steel during heavy compression was studied by thermodynamic computations. Compression tests were conducted at temperatures of 298 and 573 K on the rectangle samples at the strain rate of 0.001 s-1. The samples were deformed to 40 and 70% of their original thickness. It was found that 70% compression of the steel at room temperature resulted in transformation of retained austenite to martensite, which is in agreement with thermodynamic calculations. Additionally, heavy compression resulted in the formation of fine grains with high angle grain boundaries which confirms grain refinement.",

author = "Farideh Hajiakbari and Mahmoud Nili-Ahmadabadi and Behrang Poorganji and Tadashi Furuhara",

note = "Funding Information: Acknowledgements The authors would like to express their thanks to the Iran National Science Foundation for financial support of this research and also thank Dr. Parsa for fruitful discussions.",

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AU - Hajiakbari, Farideh

AU - Nili-Ahmadabadi, Mahmoud

AU - Poorganji, Behrang

AU - Furuhara, Tadashi

N1 - Funding Information: Acknowledgements The authors would like to express their thanks to the Iran National Science Foundation for financial support of this research and also thank Dr. Parsa for fruitful discussions.

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N2 - The induced martensite transformation in a dual-phase bainitic ferrite-austenite steel during heavy compression was studied by thermodynamic computations. Compression tests were conducted at temperatures of 298 and 573 K on the rectangle samples at the strain rate of 0.001 s-1. The samples were deformed to 40 and 70% of their original thickness. It was found that 70% compression of the steel at room temperature resulted in transformation of retained austenite to martensite, which is in agreement with thermodynamic calculations. Additionally, heavy compression resulted in the formation of fine grains with high angle grain boundaries which confirms grain refinement.

AB - The induced martensite transformation in a dual-phase bainitic ferrite-austenite steel during heavy compression was studied by thermodynamic computations. Compression tests were conducted at temperatures of 298 and 573 K on the rectangle samples at the strain rate of 0.001 s-1. The samples were deformed to 40 and 70% of their original thickness. It was found that 70% compression of the steel at room temperature resulted in transformation of retained austenite to martensite, which is in agreement with thermodynamic calculations. Additionally, heavy compression resulted in the formation of fine grains with high angle grain boundaries which confirms grain refinement.

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Microstructure evolution through heavy compression aided by thermodynamic calculations

Abstract

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