Metallurgical Principles and Practice of Engineering (PE) Study Guide: Question #45

It Is the Policy of The Minerals, Metals & Materials Society (TMS) to Encourage the Professional Registration of Metallurgical Engineers.
Piping at a chemical processing plant was typically exposed to temperatures above 75°F. Low ambient temperatures due to an unusually cold winter, in combination with operating problems, caused the temperature of the piping to drop to almost -100°F. This low temperature strongly contributed to a fracture in the piping. The piping was carbon steel (ASTM A-53 Grade B). Which of the following most likely describes what would be observed when examining the fracture surface of the failed piping?

(A)	Fracture perpendicular to the applied stress, gross permanent plastic deformation and a shear type fracture
(B)	V-shaped marks pointing to the origin of fracture, shear type fracture and no gross permanent plastic deformation
(C)	No gross permanent plastic deformation, cleavage type fracture and fracture perpendicular to the applied stress
(D)	Cleavage-type fracture, gross permanent plastic deformation and V-shaped marks pointing towards the origin of fracture

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