Flashcards in Chapter 3 Deck (10):
Name the six tensile test sequences
Uniform Elongation and area reduction
Putting pieces back together to measure final length
Length - Orig Length / Orig Length
What is the slope function for modulus of elasticity
Axial Stress = E*strain
Metal becomes stronger as strain increases
Relationship between true stress and true strain
Stress = (strength coefficient*e^(strain hardening coefficient)
What test is used to measure metals and nonmetals with low to medium hardness
Brinell Hardness Test.
Where take a ball and press it into material at 500, 1500 or 3000 kg
Explain the Di, Db, and F in the brinell hardness formula.
Inner and ball diameter. Indentation load.
2F/(pi*Db(Db-sqrt(Db^2 - Di^2)))
Explain Rockwell Hardness Test
Cone shaped indentor pressed into material at 10 kg then 150 kg. Distance covered is calculated by machine.
Explain temperature effect on strength and ductility