NEW MODEL FOR PREDICTION OF FERRITE NUMBER OF STAINLESS-STEEL WELDS

Authors
BABU SS VITEK JM ISKANDER YS DAVID SA
Citation
Ss. Babu et al., NEW MODEL FOR PREDICTION OF FERRITE NUMBER OF STAINLESS-STEEL WELDS, Science and technology of welding and joining, 2(6), 1997, pp. 279-285
Citations number
21
Journal title
Science and technology of welding and joining → ACNP
ISSN journal
13621718
Volume
2
Issue
6
Year of publication
1997
Pages
279 - 285
Database
ISI
SICI code
1362-1718(1997)2:6<279:NMFPOF>2.0.ZU;2-U
Abstract
A new semi-empirical model for predicting the ferrite content of stain less steel welds has been developed. This model pr edicts the ferrite number of stainless steel welds as a function of composition. The mode l is based on an equation representing the free energy change between ferrite and austenite. This model has been derived from published data of experimental weld metal compositions and their corresponding ferri te numbers. The predictive capability of this model was found to be go od and describes the effect of alloying elements on the fel rite numbe r. This model is comparable in accuracy to currently available constit ution diagrams but is applicable to a wider range of alloy composition s. (C) 1997 The Institute of Materials.