General Studies · Material Science
A low-carbon steel sample undergoes full annealing. Compared to the as-cast condition, which of the following changes are observed in the microstructure and mechanical properties after full annealing?
- 1Decreased hardness, increased ductility, and coarse grains✓
- 2Decreased hardness, decreased ductility, and martensitic structure
- 3Increased hardness, increased ductility, and refined grains
- 4Increased hardness, decreased ductility, and coarse pearlitic structure
Correct answer
Decreased hardness, increased ductility, and coarse grains
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