Correlation between microstructure and micro-hardness of 316L nitrided austenitic stainless steel

Hussain, P. and Mahmoud, H. and Basha, S.N. and Mohamad, A.I. (2020) Correlation between microstructure and micro-hardness of 316L nitrided austenitic stainless steel. In: UNSPECIFIED.

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Abstract

This paper presents the effect of duration of solution nitriding towards microstructure and microhardness of AISI 316L stainless steel. The AISI 316L stainless steel was exposed to high temperature gas nitriding process at 1200 °C by using 50 ammonia gas and 50 nitrogen gas for different durations of 8, 15 and 20 hours. The nitrided austenitic stainless steel then underwent several analyses and tests to find the effect of different durations of nitriding towards its microstructures and microhardness. From the experiments conducted to the nitrided samples, it was found that the higher duration of nitriding resulted in the increase of microhardness of the samples due to the increase of nitrogen content in the stainless steel. However, there was no effect found on the microstructure of the nitrided samples. It was noted that the highest hardness was obtained from the nitrided sample of 20 hours that has 245.1 HV which is about 70 higher than the as-received sample. © 2020 Published under licence by IOP Publishing Ltd.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Additional Information: cited By 3; Conference of 5th UTP-UMP-UAF Symposium on Energy Systems 2019, SES 2019 ; Conference Date: 1 October 2019 Through 2 October 2019; Conference Code:161025
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 10 Nov 2023 03:27
Last Modified: 10 Nov 2023 03:27
URI: https://khub.utp.edu.my/scholars/id/eprint/13037

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