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Prediction of cooling rate and microstructure in laser spot welds

DSpace at IIT Bombay

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Field Value
 
Title Prediction of cooling rate and microstructure in laser spot welds
 
Creator DE, A
WALSH, CA
MAITI, SK
BHADESHIA, HKDH
 
Subject stainless-steel
heat-transfer
beam
model
deposits
strength
shape
transformation
penetration
martensite
 
Description Theoretical and experimental investigations have been carried out to examine the influence of laser power and on time on the weld thermal cycle and weld metal microstructure and hardness during laser spot welding of low alloy steel. A transient heat transfer model that takes into account the temperature dependence of material properties and latent heat of phase transformation is employed to simulate thermal cycles and cooling rates experienced by the material under various combinations of power and on times. Two models for predicting the microstructure and hardness of the weld pool metal from the cooling rates are used to evaluate the results.
 
Publisher MANEY PUBLISHING
 
Date 2011-08-18T05:47:21Z
2011-12-26T12:55:35Z
2011-12-27T05:41:24Z
2011-08-18T05:47:21Z
2011-12-26T12:55:35Z
2011-12-27T05:41:24Z
2003
 
Type Article
 
Identifier SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 8(6), 391-399
1362-1718
http://dx.doi.org/10.1179/136217103225005633
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9906
http://hdl.handle.net/10054/9906
 
Language en