Bainitic Steels

Steel name: Bainitic Steels
Diagram No.: 3779
Type of diagram: CCT
Chemical composition in weight %:
a.) 0.24% C, 1.27% Si, 0.09% Mn, 1.00% Cr, 0.23% Mo, 3.64% Ni, 0.014% Al
b.) 0.30% C, 1.42% Si, 0.10% Mn, 1.03% Cr, 0.22% Mo, 3.48% Ni, 0.040% Al
c.) 0.32% C, 0.30% Si, 0.61% Mn, 1.74% Cr, 0.25% Mo, 3.58% Ni, 1.25% Al
Steel group: Bainitic steels
Note: CCT diagrams for samples with an austenite grain size in the range 40–60 µm and austenitisation temperature of 1000oC. (a) Alloy 1. (b) Alloy 2. (c) Alloy 3. The terms alpha, alpha(b) and alpha' refer to allotriomorphic ferrite, bainite and martensite respectively. 1. The samples were heated at 5oCs-1 up to 1000oC and then immediately cooled without holding at the maximum temperature. The cooling rates used were constant and in the range 0.1–10oCs-1. The measured austenite grain size was for all the samples, in the range 40–60 µm.
Reference: Not shown in this demo version.

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