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Metallurgical Engineering

GATE MT concept:steady-state PYQs

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GATE MT syllabus

Questions 1–1 of 1. Imported answers require independent review unless marked reviewed.

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Question 50

Open question
MTNAT2 marksNeeds review
A hypothetical binary eutectic phase diagram of A – B is shown below. An alloy with 5 wt.% B solidifies with no convection. Assuming steady state, the critical temperature gradient (in K mm⁻¹) required to maintain planar solidification front is: __________ (round off to nearest integer). Given: Diffusivity of B in liquid =

m² s⁻¹ Velocity of solidification front = 4 μm s⁻¹
Diagram for Metallurgical Engineering question 50


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