Materials Science Unit 3 (OQ 24-35) || Already Graded A+.
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Materials Science Unit 3
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Materials Science Unit 3
In a binary phase diagram, the liquidus curve correct answers is the boundary between a single phase (liquid) region and a two phase (solid and liquid) region
In a binary phase diagram, a tie line is drawn correct answers in a two phase region
Ge-Si phase diagram at p = 1 atm is shown. At 120...
Materials Science Unit 3 (OQ 24-35) || Already Graded A+.
In a binary phase diagram, the liquidus curve correct answers is the boundary between a single
phase (liquid) region and a two phase (solid and liquid) region
In a binary phase diagram, a tie line is drawn correct answers in a two phase region
Ge-Si phase diagram at p = 1 atm is shown. At 1200 deg C, what is the maximum solubility of
silicon (in at%) in the solid phase (Quiz 24 Figure 1) correct answers 67 at% Si
Ge-Si phase diagram at p = 1 atm is shown. At 1200 deg C, what is the maximum solubility of
silicon (in at%) in the liquid phase (Quiz 24 Figure 1) correct answers 34 at% Si
Ge-Si phase diagram at p = 1 atm is shown. How many degrees of freedom are there at point (a)
(Quiz 24 Figure 1) correct answers 2
Ge-Si phase diagram at p = 1 atm is shown. How many degrees of freedom are there at point (d)
(Quiz 24 Figure 1) correct answers 1
Ge-Si phase diagram at p = 1 atm is shown. For an alloy containing 40 at% Si at 1200 deg C, the
amount of liquid phase is (Quiz 24 Figure 1) correct answers 82%
Ge-Si phase diagram at p = 1 atm is shown. The microstructure of an alloy containing 40 at% Si
at 1300 deg C is (Quiz 24 Figure 1) correct answers all liquid (Quiz 24 Answer Options)
Ge-Si phase diagram at p = 1 atm is shown. The microstructure of an alloy containing 40 at% Si
at 1150 deg C is (Quiz 24 Figure 1) correct answers liquid with alpha particles (Quiz 24 Answer
Options)
Ge-Si phase diagram at p = 1 atm is shown. The microstructure of an alloy containing 40 at% Si
at 950 deg C is (Quiz 24 Figure 1) correct answers all alpha (Quiz 24 Answer Options)
Ge-Si phase diagram at p = 1 atm is shown. For an alloy containing 40 at% Si at 950 deg C, the
phases present are (Quiz 24 Figure 1) correct answers 100% solid phase containing 40 at% Si
Ge-Si phase diagram at p = 1 atm is shown. For an alloy containing 40 at% Si at 1200 deg C, the
amount of solid phase is (Quiz 24 Figure 1) correct answers 18%
The solid phase in an isomorphous system can be strengthened by (q1) correct answers the solid
solution hardening mechanism
The solid phase in an isomorphous system can be strengthened by (q2) (3) correct answers the
grain size strengthening mechanism
the solid solution hardening mechanism
the strain hardening mechanism
, In a binary alloy, coring or microsegregation (3) correct answers leads to concentration gradients
within the grains of a solid phase
can be eliminated by homogenization below the solidus temperature
occurs due to non-equilibrium or rapid cooling from the liquidus temperature
In a binary alloy of metals A and B, the solid phase α shows coring or microsegregation in grains
that have an average radius of 25 µm. At the homogenization temperature, the diffusion constant
for metal A (faster diffusing atom) is 3 x 10^-9 cm^2/s. The minimum time needed for
eliminating coring is correct answers 60 seconds
How many solid phases show up in the enclosed phase diagram (Quiz 25 Figure 1) correct
answers 5
What is the name of the invariant reaction at ~900C and 38%B in the phase diagram shown
(Quiz 25 Figure 1) correct answers Monotectic
What is the name of the invariant reaction at ~1100C and 90%B in the phase diagram shown
(Quiz 25 Figure 1) correct answers Peritectic
What is the name of the invariant reaction at ~600C and 37%B in the phase diagram shown
(Quiz 25 Figure 1) correct answers Peritectoid
What is the name of the invariant reaction at ~690C and 60%B in the phase diagram shown
(Quiz 25 Figure 1) correct answers Eutectic
What is the name of the invariant reaction at ~300C and 90%B in the phase diagram shown
(Quiz 25 Figure 1) correct answers Eutectoid
What is the solubility limit of α (alpha) phase at 900C in the phase diagram shown (Quiz 25
Figure 1) correct answers 5% B
In a binary phase diagram, the solvus curve is the boundary between correct answers a solid
phase region and a two solid phases region
In the Lead-Tin diagram shown, an alloy containing 40 wt% Tin at 300 deg C (Quiz 26 Figure 1)
correct answers is 100% liquid
In the Lead-Tin diagram shown, an alloy containing 40 wt% Tin at 200 deg C (Quiz 26 Figure 1)
correct answers is 56% liquid and 44% alpha phase
In the Lead-Tin diagram shown, an alloy containing 40 wt% Tin at 100 deg C (Quiz 26 Figure 1)
correct answers is 64% alpha and 36% beta phase
In a binary alloy, when a liquid of eutectic composition is slowly cooled through the eutectic
temperature, it transforms to correct answers two different solid phases
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