From the iron-carbon phase diagram, which of the following phases/phase combinations is present for a steel composition of 0.7wt % C at 700°
C:
选项:
A:Pearlite + Cementite
B:α + Pearlite
C:α + Cementite
D:γ + Cementite
发布时间:2024-04-07 11:32:54