Physical Metallurgy - Study Mode
[#111] The self diffusion in FCC metals occurs by one of the following mechanisms.
Correct Answer
(C) Vacancy
[#112] A binary alloy system A-B shows the peritectic reaction, L + α (⟶β). An alloy of the peritectic composition when cooled under natural cooling conditions will show coring in
Correct Answer
(B) β phase only
[#113] Match the names listed in Group I with the reactions listed in Group II . Group I Group II P. Eutectic 1. γ + β ⟶ α Q. Peritectic 2. L ⟶ α + β R. Peritectoid 3. L 1 ⟶ L 2 + α S. Monotectic 4. L + β ⟶ α
Correct Answer
(C) P-2, Q-4, R-1, S-3
[#114] Pb-Sn is an example
Correct Answer
(B) Eutectic System
[#115] Atomic packing factor of BCC crystal structure is
Correct Answer
(A) 0.68