In many modern methods of metal processing, the materials are softened by Joule effect induced by electric current; in this way, the formability is enhanced and especially the flow stress is significantly reduced. In addition, when electric current is involved, changes in other aspects have been observed, including rebound, improved elongation and microstructural features, depending on materials and microstructures. Electric current was found to affect the flow stress on the basis of the so-called Electro-Plastic Effect (EPE), enhancing the material flow properties and especially its formability.
Investigation of Electro-Plastic Effect on Ferritic Stainless Steel AISI 430
SPEZZAPRIA, MATTIA;BREDA, MARCO;BRUSCHI, STEFANIA;CALLIARI, IRENE;Gennari, C.;FORZAN, MICHELE;MICHIELETTO, FRANCESCO
2015
Abstract
In many modern methods of metal processing, the materials are softened by Joule effect induced by electric current; in this way, the formability is enhanced and especially the flow stress is significantly reduced. In addition, when electric current is involved, changes in other aspects have been observed, including rebound, improved elongation and microstructural features, depending on materials and microstructures. Electric current was found to affect the flow stress on the basis of the so-called Electro-Plastic Effect (EPE), enhancing the material flow properties and especially its formability.
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