Question: Exercise 5 The table below shows data on a Charpy V test of a ductile cast iron. Temp [C] Impact [J] -25 124 -50 123

Exercise 5 The table below shows data on a Charpy V test of a ductile cast iron.

Temp [C]	Impact [J]
-25	124
-50	123
-75	115
-85	100
-100	73
-110	52
-125	26
-150	9
-175	6

a) (i) Construct the diagram toughness vs. temperature. (ii) Determine the wrap temperature that corresponds to an average impact strength from outside maximum and minimum impact energy. (iii) Determine a temperature that corresponds to a work of 80J.

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