The GATE Grind

GATE 2021 MT – Question 19

Physical Metallurgy · Heat treatment and recrystallization · 1 mark · Multiple choice

Which element alloyed with iron is a ferrite stabilizer?

  1. Nickel
  2. Manganese
  3. Carbon
  4. Silicon

Practise this question in The GATE Grind →

Show answer and explanation

Correct answer: (D) Silicon

Explanation

Silicon stabilizes ferrite and contracts the austenite phase field. Nickel, manganese and carbon stabilize austenite in this comparison.

Therefore **silicon, D**.