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The stacking fault in FCC will create a thin region of ___________ in stacking of the FCC.
A metal crystallizes into two cubic phases BCC and FCC. The ratio of densities of FCC and BCC is equal to 1.5. Calculate the difference between the unit cell lengths of the FCC and BCC crystals if the edge length of the FCC crystal is equal to 4.0 Å.
The higher the width of the stacking fault _________ will be the stacking-fault energy. Higher the stacking fault energy __________ will be the cross slip.
Stainless steel A has a stacking fault energy of 8 mJ.m-2 and stainless steel B has a stacking fault energy of 45 mJ. m-2. The correct statement out of the following are.
P. A will have a wider stacking faults than B
Q. A will strain harden more rapidly than B
R. A and B will develop similar type of substructure
S. A and B will have the same temperature dependence of flow stress.
Stacking sequence in face centered cubic (FCC) close packed structure is?
The stacking sequence of the atomic arrangement for FCC is ___________
The _______ the stacking-fault energy, the higher the separation between the partial dislocations and the ________ the stacking fault.
Metals with wide stacking faults (low SFE) strain-harden more rapidly, twin easily on annealing, and shows a different temperature dependence of flow stress than metals with narrow stacking faults.
The material with higher stacking fault energy has higher fatigue strength whereas the material with lower stacking fault will have a lower fatigue limit.
The effect of grain size on the fatigue strength is predominant in material with high stacking fault energy while the effect of grain size is negligible in low stacking fault energy material.