New model for prediction of ferrite number of stainless steel welds

被引：29
|
作者：
Babu, SS [1 ]
Vitek, JM [1 ]
Iskander, YS [1 ]
David, SA [1 ]
机构：
[1] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA
来源：
SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 1997年 / 2卷 / 06期
关键词：
D O I：
10.1179/stw.1997.2.6.279
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new semi-empirical model for predicting the ferrite content of stainless steel welds has been developed. This model pr edicts the ferrite number of stainless steel welds as a function of composition. The model 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 ferrite numbers. The predictive capability of this model was found to be good and describes the effect of alloying elements on the fel rite number. This model is comparable in accuracy to currently available constitution diagrams but is applicable to a wider range of alloy compositions. (C) 1997 The Institute of Materials*.
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页码：279 / 285
页数：7
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