Answer to Question #288571 in Engineering for ughj

Question

What is the name given to the type of diagram shown in Fig. 4(a)? (1 mark) (ii) Using Fig. 4(a), give a clear account of the development, during slow cooling, of the microstructure in an iron – carbon alloy with a carbon content of 0.25 wt% C. Your answer must give an account at each of the points A, B, C, and D shown on Fig. 4(a). (7 marks) (iii) What specific name is given to the iron – carbon alloy with a composition of less than 0.76 wt% C? (2 marks) (iv) Identify how the material structure changes as the wt % C increases from 0 to 1.2% and draw a sketch to show how the tensile strength, ductility and hardness of the material are affected as a result.

Answer 1

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