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a brittle fracture
grows very rapidly with minimum deformation prior to failure
which of the following materials is least affected by brittle fracture?
A) carbon steel
C) 300 series SS
D) 400 series SS
E) all stainless steels
300 series SS
which of the following is not a critical factor that contributes to a brittle fracture?
A) the materials fracture toughness
B) maximum operating temperature
C) stress concentration at a flaw
D) magnitude of the residual stresses
maximum operating temp
resistance to brittle fracture is called
which of the following increases the likelihood of brittle fracture
A) larger grain size
B) operational temps above 800 deg F
C) steels less the 1/4" thick
D)the addition of nickel in the material
larger grain size
which of the following increases the likelihood of brittle fracture?
A) smaller grain size
B) operating temps above transitional temps
C) thicker materials
D) the addition of nickel in the material
what test is used to determine a material's toughness
charpy impact test
most brittle failures occur:
below the impact transition temperature
ASME section 8 had few limitations concerning brittle fracture prior to:
a 4" thick 5 chrome vessel operates at 1200 psig and 900 deg F. When is this vessel least likely to fail by brittle fracture?
most brittle failures appear as:
which of the following is not a method used to prevent brittle fracture
A) thorough inspections
B) strict controls on selecting construction materials
C) post weld heat treatment
D) controlling minimum operating temperatures