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The effect of neutron irradiation on the tensile deformation behavior of zirconium was examined at room temperature at various strain rates ranging of 2.2 x 10-â¢-2.2 x 10- sec-'. The microstructure of the deformed specimens was observed by transmission electron microscopy. It was established that neutron irradiation diminishes the uniform elongation and the strain hardening rate, and hastens the onset of plastic instability. These phenomena are attributed to inhomogeneous deformation in the dislocation chanÂ­ nels in the irradiated and deformed zirconium.
Food irradiation wonât prevent illnesses associated with poor handling after the irradiation has occurred. What happens to the food after irradiation still puts us at risk, which is why the food must still be stored and handled properly. Food irradiation also wonât make the food better if it is already spoiled. Food irradiation does not make food radioactive nor does it create odd or harmful chemicals in food. Irradiation is a process that does not affect the nutritional value of our food and would be very similar to cooking, freezing, canning, etc. Over the past 60 years, food irradiation has been used in the military, in the space program, in medicine for bone marrow transplant patients, and more.