Record Details

Microstructural evaluation of molybdenum-containing stainless steel weld metals by a potentiostatic etching technique

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Microstructural evaluation of molybdenum-containing stainless steel weld metals by a potentiostatic etching technique
 
Creator PUJAR, MG
DAYAL, RK
GILL, TPS
MALHOTRA, SN
 
Subject corrosion
ferrite
 
Description Microstructure of austenitic stainless steel weld metals is complicated by the presence of delta-ferrite and microsegregated regions rich in chromium and molybdenum, as well as other minor alloying elements such as sulphur and phosphorus at the delta/gamma interphase boundaries. Detailed microstructural studies are required in order to establish correlation between various metallurgical as well as electrochemical corrosion properties with the weld metal microstructure. The conventional chemical etching technique was found to be inadequate in revealing different microconstituents. A powerful potentiostatic etching technique was used to reveal not only ferrite but also different microconstituents that had different specific electrochemical potentials at which they dissolved. This paper describes the weld metal microstructure developed by the addition of molybdenum (4.16-5.83 wt%) to type 316 stainless steel weld metals during Tungsten Inert Gas (TIG) welding with different heat inputs. (C) 1998 Chapman & Hall.
 
Publisher KLUWER ACADEMIC PUBL
 
Date 2011-08-17T06:47:36Z
2011-12-26T12:55:25Z
2011-12-27T05:39:44Z
2011-08-17T06:47:36Z
2011-12-26T12:55:25Z
2011-12-27T05:39:44Z
1998
 
Type Article
 
Identifier JOURNAL OF MATERIALS SCIENCE, 33(10), 2691-2700
0022-2461
http://dx.doi.org/10.1023/A:1004334109353
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9783
http://hdl.handle.net/10054/9783
 
Language en