Steel Forming and Heat Treating Handbook - Antonio Gorni On Line
Steel Forming and Heat Treating Handbook - Antonio Gorni On Line
Steel Forming and Heat Treating Handbook - Antonio Gorni On Line
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<strong>Gorni</strong><br />
Notation:<br />
Ar1: Ferrite End Temperature [°C]<br />
Alloy Content: [weight %]<br />
<strong>Steel</strong> <strong>Forming</strong> <strong>and</strong> <strong>Heat</strong> <strong>Treating</strong> H<strong>and</strong>book<br />
24<br />
Observations:<br />
- The previous conditioning of the steel samples that supplied data for the deduction of this formula is unknown.<br />
- Samples cooled at 20°C/s.<br />
Source: Unknown.<br />
. Yuan<br />
Non-Deformed Austenite:<br />
D <br />
370 exp <br />
<br />
0.1<br />
2<br />
Ar3 325 CR 5649 Nb 78194 Nb 1019<br />
6.7 <br />
<br />
Notation:<br />
Ar3: Ferrite Start Temperature [°C]<br />
CR: Continuous Cooling Rate [°C/s]<br />
Nb: Niobium content [weight %]<br />
Observations:<br />
- This formula was determined using temperature data got from non-hot deformed samples.<br />
- Base steel: 0.11% C, 1.20% Mn, 0.20% Si, 0.005% N. Useful range: 0.000-0.038% Nb, CR: 0.5-30°C/s.<br />
Deformed Austenite:
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