Assessing intermetallic growth characteristics in aluminum-to-steel welds
Combining aluminum and steel construction in vehicle manufacturing
can offer great lightweighting and strength advantages. The formation of
brittle intermetallic compounds (IMCs) in the joints between the materials,
however, are known to impair performance.
Prediction of such intermetallic formation is often difficult to assess
do to the rapid thermal cycles involved.
A new technique for evaluating IMC formation has been
developed by EWI Applications Engineer Michael Eff and is discussed in Design
and Development of Resistance-based Rapid Thermal Cycle Diffusion Couples.
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