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Study of plasma nitriding and nitrocarburizing for higher corrosion resistance and hardness of 2205 duplex stainless steel

DSpace at IIT Bombay

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Title Study of plasma nitriding and nitrocarburizing for higher corrosion resistance and hardness of 2205 duplex stainless steel
 
Creator ALPHONSA, J
RAJA, VS
MUKHERJEE, S
 
Subject HEAT-AFFECTED ZONE
PITTING CORROSION
NITROGEN
BEHAVIOR
MICROSTRUCTURE
PASSIVATION
LAYERS
AUSTENITE
CARBON
NACL
Stainless steel
EIS
SEM
Passivity
 
Description 2205 duplex stainless steel despite possessing good corrosion resistance suffers from low hardness. With a view to improve hardness and corrosion resistance, plasma nitriding and nitrocarburizing processes were performed at 350, 400, 450 and 500 degrees C for 4h. Specimens treated at 400 degrees C by plasma nitrocarburizing exhibits the highest corrosion resistant with a significant raise in surface hardness. At higher temperatures, specimens treated by these processes show poor corrosion resistance. This study highlights the difference in plasma nitriding behavior of the ferrite and austenite phases and not so different behavior of these phases when subjected to plasma nitrocarburizing. (C) 2015 Elsevier Ltd. All rights reserved.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2016-01-14T13:32:23Z
2016-01-14T13:32:23Z
2015
 
Type Article
 
Identifier CORROSION SCIENCE, 100,121-132
0010-938X
1879-0496
http://dx.doi.org/10.1016/j.corsci.2015.07.014
http://dspace.library.iitb.ac.in/jspui/handle/100/17623
 
Language en