abstract a downhole annealing system includes a component to be annealed a steam generating catalyst in proximity to the component and a reactant fuel selectively communicative with the catalyst to produce an exothermic reaction and method application_number US 1723708 A description metal downhole components such as screens and other tubulars are often expanded from a run in set of dimensions to a final set of dimensions that is are larger than the set of run in dimensions this process tends to work harden the components and in some cases causes a tool manufacturer to select different starting materials than they otherwise might have selected to ensure reliability and longevity of the component in addition manufacturers are sometimes required to incur expenses related to research and development in order to address the work hardening issue annealing the components during or after expansion or other deformation would significantly help to improve the components but there heretofore have been no means of annealing materials in the downhole environment referring to fig1 a schematic illustration of a component 10 being expanded by an expansion cone 12 is provided for environment it is intended that the drawing figure be recognized as representative of many different types of expansion operations and expansion components.