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Effect of multi-step tempering on retained austenite and mechanical properties of low alloy steel

The effect of multi-step tempering on retained austenite content and mechanical properties of low alloy steel used in the forged cold back-up roll was investigated. Microstructural evolutions were characterized by optical microscope, X-ray diffraction, scanning electron microscope and Feritscope, wh...

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Main Authors:	Bakhsheshi Rad, Hamid Reza, Monshi, Ahmad, Monajatizadeh, Hossain, Idris, Mohd. Hasbullah, Abdul Kadir, Mohammed Rafiq, Jafari, Hassan
Format:	Article
Published:	2012
Subjects:	TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/46861/ http://dx.doi.org/10.1016/S1006-706X(12)60009-0
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id	my.utm.46861
record_format	eprints
spelling	my.utm.468612017-09-26T01:34:38Z http://eprints.utm.my/id/eprint/46861/ Effect of multi-step tempering on retained austenite and mechanical properties of low alloy steel Bakhsheshi Rad, Hamid Reza Monshi, Ahmad Monajatizadeh, Hossain Idris, Mohd. Hasbullah Abdul Kadir, Mohammed Rafiq Jafari, Hassan TK Electrical engineering. Electronics Nuclear engineering The effect of multi-step tempering on retained austenite content and mechanical properties of low alloy steel used in the forged cold back-up roll was investigated. Microstructural evolutions were characterized by optical microscope, X-ray diffraction, scanning electron microscope and Feritscope, while the mechanical properties were determined by hardness and tensile tests. The results revealed that the content of retained austenite decreased by about 2% after multi-step tempering. However, the content of retained austenite increased from 3.6% to 5.1% by increasing multi-step tempering temperature. The hardness and tensile strength increased as the austenitization temperature changed from 800 to 920 °C, while above 920 °C, hardness and tensile strength decreased. In addition, the maximum values of hardness, ultimate and yield strength were obtained via triple tempering at 520 °C, while beyond 520 °C, the hardness, ultimate and yield strength decreased sharply. 2012 Article PeerReviewed Bakhsheshi Rad, Hamid Reza and Monshi, Ahmad and Monajatizadeh, Hossain and Idris, Mohd. Hasbullah and Abdul Kadir, Mohammed Rafiq and Jafari, Hassan (2012) Effect of multi-step tempering on retained austenite and mechanical properties of low alloy steel. Journal of Iron and Steel Research International, 18 (12). pp. 49-56. ISSN 1006-706X http://dx.doi.org/10.1016/S1006-706X(12)60009-0
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering Bakhsheshi Rad, Hamid Reza Monshi, Ahmad Monajatizadeh, Hossain Idris, Mohd. Hasbullah Abdul Kadir, Mohammed Rafiq Jafari, Hassan Effect of multi-step tempering on retained austenite and mechanical properties of low alloy steel
description	The effect of multi-step tempering on retained austenite content and mechanical properties of low alloy steel used in the forged cold back-up roll was investigated. Microstructural evolutions were characterized by optical microscope, X-ray diffraction, scanning electron microscope and Feritscope, while the mechanical properties were determined by hardness and tensile tests. The results revealed that the content of retained austenite decreased by about 2% after multi-step tempering. However, the content of retained austenite increased from 3.6% to 5.1% by increasing multi-step tempering temperature. The hardness and tensile strength increased as the austenitization temperature changed from 800 to 920 °C, while above 920 °C, hardness and tensile strength decreased. In addition, the maximum values of hardness, ultimate and yield strength were obtained via triple tempering at 520 °C, while beyond 520 °C, the hardness, ultimate and yield strength decreased sharply.
format	Article
author	Bakhsheshi Rad, Hamid Reza Monshi, Ahmad Monajatizadeh, Hossain Idris, Mohd. Hasbullah Abdul Kadir, Mohammed Rafiq Jafari, Hassan
author_facet	Bakhsheshi Rad, Hamid Reza Monshi, Ahmad Monajatizadeh, Hossain Idris, Mohd. Hasbullah Abdul Kadir, Mohammed Rafiq Jafari, Hassan
author_sort	Bakhsheshi Rad, Hamid Reza
title	Effect of multi-step tempering on retained austenite and mechanical properties of low alloy steel
title_short	Effect of multi-step tempering on retained austenite and mechanical properties of low alloy steel
title_full	Effect of multi-step tempering on retained austenite and mechanical properties of low alloy steel
title_fullStr	Effect of multi-step tempering on retained austenite and mechanical properties of low alloy steel
title_full_unstemmed	Effect of multi-step tempering on retained austenite and mechanical properties of low alloy steel
title_sort	effect of multi-step tempering on retained austenite and mechanical properties of low alloy steel
publishDate	2012
url	http://eprints.utm.my/id/eprint/46861/ http://dx.doi.org/10.1016/S1006-706X(12)60009-0
_version_	1643652162015723520
score	13.211869

Effect of multi-step tempering on retained austenite and mechanical properties of low alloy steel

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