Rank the following iron-carbon alloys and associated microstructures from the highest to the lowest tensile strength: (a)

Question:

Rank the following iron-carbon alloys and associated microstructures from the highest to the lowest tensile strength:
(a) 0.25 wt%C with spheroidite,
(b) 0.25 wt%C with coarse pearlite,
(c) 0.60 wt%C with fine pearlite, and
(d) 0.60 wt%C with coarse pearlite.
Justify this ranking.