Steels are identified by specific numbering systems e.g. AISI or SAE. the first digit 1 indicates that this is plain carbon steel. the second digit 0 indicates there are no alloying elements the last two digits indicates that the steel contains approximately 0.20 percent carbon a) An AISI 1080 steel is cooled slowly through the eutectoid temperature to room temperature. Through the use of a diagram show the micro structure you would expect to see. The different phases present must be correctly named.(2 morlco) b) What are plain C steels with less than the eutectoid composition called? What phases would you see in the microstructure of such a steel? (A drawing will be given credit here but correct terminology must be used for the different phases)(3 marks) ) What are plain C steels with more than the eutectoid composition called? What phases would you see in the microstructure of such a steel? (A drawing will be given credit here but correct terminology must be used for the different phases) d) For what reason might Chromium be added as an alloying element to steel?(1 mark) e) What is the Steel eutectic reaction? What phases are involved? What are the different classes of plain C steels called? (include compositions)(3 marks)