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9 Terms
Grain boundary strengthening
Which of the following is a common strengthening mechanism in metals?
Increases strength
What is the effect of reducing grain size on the strength of a material?
Thermal expansion
Which of the following is NOT a strengthening mechanism?
To relieve internal stresses
What is the main purpose of annealing a metal?
Annealing
Which process involves heating a material to a high temperature and then cooling it slowly?
Increases strength and hardness
What is the effect of cold working on the mechanical properties of a metal?
Crack strength
Increases fracture toughness
How does an increase in crack size affect the fracture toughness of a material?
Directly proportional
What is the relationship between applied stress and fracture toughness for a given crack size?
Note 
Flashcards (36)