Experimental studies of Portevin-Le Chatelier plastic instabilities in carbon-manganese steels by infrared pyrometry
TypeArticles dans des revues avec comité de lecture
The dynamic strain aging (DSA) phenomenon that occurs in some materials under certain temperature and strain rate conditions can cause plastic strain localization in the form of Portevin-Le Chatelier (PLC) bands. Carbon-manganese steels are used commonly and frequently in construction because of their ductility, low cost and ability to form mechanically. In these steels, the DSA phenomenon occurs for common quasi-static strain rates from 150 to 300 °C, which makes band observation complicated. PLC bands on a carbon-manganese steel that was sensitive to DSA were studied using an infrared camera. Specimen heating was achieved using an induction furnace (with an adapted coil inductor), which allows for temperature recording during tensile tests. Thermography with an infrared camera was used to estimate the band characteristics and increments in band plastic strain, which is an important parameter for material behavior identification necessary for DSA phenomenon modeling. This technique had been developed only for PLC phenomenon observation at ambient temperature on aluminum alloys. Band characteristics on the carbon-manganese steels have been compared with results obtained previously on aluminum alloys.
Showing items related by title, author, creator and subject.
KLINGER, Evelyne; KADRI, Abdelmajid; JOSEPH, Pierre-Alain; SORITA, Eric; LE GUIET, Jean-Luc; COIGNARD, Pauline; FUCHS, Philippe; LEROY, Laure; DU LAC, Nicolas; SERVANT, Fabrice (ACM, 2013)Stroke, traumatic brain injury, multiple sclerosis, Parkinson's disease, Alzheimer's... Every year in France, tens of thousands of people fall victim to one of those neurological pathologies. Acquired brain injury leads ...
AGATHE : A tool for personalized rehabilitation of cognitive functions based on simulated activities of daily living KLINGER, Evelyne; KADRI, Abdelmajid; SORITA, Eric; LE GUIET, Jean-Luc; COIGNARD, Pauline; FUCHS, Philippe; LEROY, Laure; DU LAC, Nicolas; SERVANT, Fabrice; JOSEPH, Pierre-Alain (ELSEVIER MASSON, 2013)Every year, tens of thousands of people fall victim to one of invalidating neurological pathologies. Acquired brain injury leads to cognitive impairment and heavy loss of autonomy. Rehabilitation interventions are needed ...
PHUNG, Ngoc Lam; MARTI, Nicolas; BLANCHE, Antoine; RANC, Nicolas; FAVIER, Véronique; CHRYSOCHOOS, André; SAINTIER, Nicolas; GREGORI, Fabienne; BACROIX, Brigitte; THOQUENNE, Guillaume (Elsevier, 2013)The DISFAT project is a French project financially supported by the French National Agency for Research (ANR). It aims at a deeper understanding of mechanisms leading to crack initiation in metals and alloys under Very ...
About the effect of plastic dissipation in heat at the crack tip on the stress intensity factor under cyclic loading RANC, Nicolas; PALIN-LUC, Thierry; PARIS, Paul C.; SAINTIER, Nicolas (Elsevier, 2013)Because of the reverse cyclic plastic zone at the crack tip, there is plastic dissipation in heat at the crack tip under cyclic loading. That creates a heterogeneous temperature field around the crack tip. A thermo-mechanical ...
Thermal effect of plastic dissipation at the crack tip on the stress intensity factor under cyclic loading RANC, Nicolas; PALIN-LUC, Thierry; PARIS, Paul C. (Elsevier, 2011)Plastic dissipation at the crack tip under cyclic loading is responsible for the creation of an heterogeneous temperature field around the crack tip. A thermomechanical model is proposed in this paper for the theoretical ...