11 Plastic Flow

Question 1

When deformation work is performed above the recrystallization temperature, it is termed

Answer 1

Hot working

Question 2

Plastic flow occurs when this is exceeded in the material

Answer 2

Shear stress

Question 3

Fracture will occur only when some of this is exceeded in the material

Answer 3

Tension stress

Question 4

Lower frequencies are required in ultrasonic testing for

Answer 4

Ingots and other course grain castings

Question 5

This material will generally exhibit maximum ductility and minimum hardness and strength

Answer 5

Hot worked

Question 6

Involves the removal and discarding of as much as one third of the top of the ingot where the largest shrinkage occurs

Answer 6

Cropping

Question 7

This method is frequently used to locate the optimum plane for cropping an ingot

Answer 7

Ultrasonic testing UT

Question 8

Hot working is usually followed by

Answer 8

Cold working

Question 9

The overall machinability of most metals is improved with reduced

Answer 9

Ductility

Question 10

This method can be used to provide a measure of thickness of decarburization that’s assuring adequate removal

Answer 10

Eddy current ET