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 />
<br />
V 1<br />
exp k ( M T)<br />
M<br />
s<br />
q<br />
<br />
<strong>Steel</strong> <strong>Forming</strong> <strong>and</strong> <strong>Heat</strong> <strong>Treating</strong> H<strong>and</strong>book<br />
38<br />
k<br />
<br />
3<br />
4<br />
6<br />
2<br />
8<br />
3<br />
11<br />
4<br />
0.36<br />
10<br />
0.10 10<br />
M<br />
s<br />
0.34 10<br />
M<br />
s<br />
0.32 10<br />
M<br />
s<br />
0.52 10<br />
M<br />
s<br />
q<br />
<br />
2<br />
4<br />
2<br />
8<br />
3<br />
2.08<br />
0.76 10<br />
M<br />
s<br />
0.16 10<br />
M<br />
s<br />
0.90 10<br />
M<br />
s<br />
Notation:<br />
VM: Volume Fraction of Martensite<br />
Ms: Temperature at Which 1% Martensite Forms [ºC]<br />
T: Temperature [ºC]<br />
Source: HOUGARDY, H.P. Description <strong>and</strong> Control of Transformations in Technical Applications. <strong>Steel</strong>: A H<strong>and</strong>book for<br />
Materials Research <strong>and</strong> Engineering – Volume 1: Fundamentals, Springer-Verlag, Berlin, 1992, 167-200.<br />
. Jaffe & Hollomon<br />
M S<br />
550 350 C 40 Mn 35V<br />
20 Cr 17<br />
Ni 10<br />
Cu 10<br />
Mo 8W<br />
15 Co 30 Al<br />
Notation:<br />
Ms: Start Temperature of the Martensitic Transformation [°C]<br />
Alloy Amount: [weight %]<br />
Observation:<br />
- Hougardy proposed a correction to this formula.<br />
Source: GRANGE, R.A. & STEWART, H.M. Hardenability <strong>and</strong> Quench Cracking. Transactions of the AIME, 167, 1946,<br />
617-646.
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