Question 6 Briefly cite the differences between pearlite, bainite, and spheroidite relative to microstructure and mechanical properties. [ 06] Question 7 (a)State the purposes of and describe procedures for the following heat treatments: process annealing, stress annealing, normalizing, full annealing and spheroidizing. [15] (b) From the above heat-treatment processes-what microstructure would one except for each process when considering the Fe-Fe3C diagram [10] Page 12 of 19 ME3A PRACTICAL GUIDE Question 8 Name four different types of steels and for each, cite compositional differences, distinctive properties and typical uses. [16] Question 9 Define Hardenability. [2] Question 10 Name and describe four forming operations that are used to shape metal alloys. [8] Question 11 Name and describe five casting techniques. [10] Question 12 Illustrate schematically the relation of the various cast iron compositions as a function of C and Si content [05] Question 13 [15] 13.1 Give a classification of the graphite flake morphology (type A-E) and briefly discuss each type. 13.2 From the images below classify each image by the type they fall under