@article{(Open Science Index):https://publications.waset.org/pdf/14979, title = {Effect of Heat Treatment on the Portevin-Le Chatelier Effect of Al-2.5%Mg Alloy}, author = {A. Chatterjee and A. Sarkar and N. Gayathri and P. Mukherjee and P. Barat}, country = {}, institution = {}, abstract = {An experimental study is presented on the effect of microstructural change on the Portevin-Le Chatelier effect behaviour of Al-2.5%Mg alloy. Tensile tests are performed on the as received and heat treated (at 400 ÂșC for 16 hours) samples for a wide range of strain rates. The serrations observed in the stress-time curve are investigated from statistical analysis point of view. Microstructures of the samples are characterized by optical metallography and X-ray diffraction. It is found that the excess vacancy generated due to heat treatment leads to decrease in the strain rate sensitivity and the increase in the number of stress drop occurrences per unit time during the PLC effect. The microstructural parameters like domain size, dislocation density have no appreciable effect on the PLC effect as far as the statistical behavior of the serrations is considered.}, journal = {International Journal of Materials and Metallurgical Engineering}, volume = {4}, number = {10}, year = {2010}, pages = {632 - 636}, ee = {https://publications.waset.org/pdf/14979}, url = {https://publications.waset.org/vol/46}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 46, 2010}, }