An investigation on low-temperature thermochemical treatments of austenitic stainless steel in fluidized bed furnace

Haruman, Esa and Yong, Sun and Triwiyanto, A. and Manurung, Yupiter H. P. and Adesta, Erry Yulian Triblas (2012) An investigation on low-temperature thermochemical treatments of austenitic stainless steel in fluidized bed furnace. Journal of Materials Engineering and Performance, 21 (3). pp. 388-394. ISSN 1059-9495 (P)

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Abstract

In this study, the feasibility of using an industrial fluidized bed furnace to perform low-temperature thermochemical treatments of austenitic stainless steels has been studied, with the aim to produce expanded austenite layers with combined wear and corrosion resistance, similar to those achievable by plasma and gaseous processes. Several low-temperature thermochemical treatments were studied, including nitriding, carburizing, combined nitriding carburizing (hybrid treatment), and sequential carburizing and nitriding. The results demonstrate that it is feasible to produce expanded austenite layers on the investigated austenitic stainless steel by the fluidized bed heat treatment technique, thus widening the application window for the novel low-temperature processes. The results also demonstrate that the fluidized bed furnace is the most effective for performing the hybrid treatment, which involves the simultaneous incorporation of nitrogen and carbon together into the surface region of the component in nitrogen- and carbon-containing atmospheres. Such hybrid treatment produces a thicker and harder layer than the other three processes investigated.

Item Type:	Article (Journal)
Additional Information:	5515/8447
Uncontrolled Keywords:	carbon, expanded austenite, fluidized bed furnace, nitrogen, stainless steel
Subjects:	T Technology > TS Manufactures > TS200 Metal manufactures. Metalworking
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Prof. Dr. Erry Yulian Triblas Adesta
Date Deposited:	04 Dec 2011 17:10
Last Modified:	19 Jul 2012 11:54
URI:	http://irep.iium.edu.my/id/eprint/8447

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