Abstract
Isothermal compression of the GH4169 nickel based superalloy was carried out at a Thermecmaster-Z simulator at deformation temperatures of 930–1050°C at intervals of 20°C, strain rate of 0·1–50·0 s−1 and maximum height reduction of 60·0%. The deformation behaviour of the GH4169 superalloy in isothermal compression was characterised based on the stress–strain behaviour analysis. Constitutive equations described the flow stress as a function of strain rate, strain and deformation temperature were proposed for the isothermal compression of the GH4169 superalloy and a close agreement between the calculated and experimental stress–strain curves is achieved.
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References
1.
Brooks
J. W.
: Mater. Design , 2000 , 21 , 297 –303 .
2.
Zener
C.
and
Hollomon
J. H.
J. Appl. Phys ., 1944 , 15 , 22 –26 .
3.
Sheppard
T.
and
Jackson
A.
Mater. Sci. Technol ., 1997 , 13 , 203 –208 .
4.
Rao
K. P.
and
Hawbolt
E. B.
J. Eng. Mater. Technol ., 1992 , 114 , 116 –121 .
5.
Hu
Z. M.
,
Brooks
J. W.
and
Dean
T. A.
J. Mater. Process. Technol ., 1999 , 88 , 251 –265 .
6.
Li
M.
,
Liu
X.
,
Wu
S.
and
Zhang
X.
Mater. Sci. Technol ., 1998 , 14 , 136 –138 .
7.
Bariani
P. F.
,
Bruschi
S.
and
Dal Negro
T.
J. Mater. Process. Technol ., 2004 , 152 , 395 –400 .
8.
van de Langkruis
J.
,
Lof
J.
,
Kool
W. H.
,
van der Zwaag
S.
and
Huétink
J.
Comput . Mater. Sc i ., 2000 , 18, 381 –392 .
9.
Tsuta
T.
,
Yin
Y.
and
Xie
Z.
Int . J. Mech. Sc i ., 2000, 42, 1471-1498.
10.
Beaudoin
A. J.
,
Acharya
A.
,
Chen
S. R.
,
Korzekwa
D. A.
and
Stout
M. G.
Acta Mater ., 2000 , 48 , 3409 –3423 .
11.
Cheng
J.
,
Nemat-Nasser
S.
and
Guo
W.
Mech. Mater ., 2001 , 33 , 603 –616 .
12.
Zhou
M.
and
Dunne
F. P. E.
J. Strain Anal , 1996 , 31 , 187 –196 .
13.
Li
M. Q.
,
Xiong
A. M.
,
Wang
H. R.
,
Su
S. B.
and
Shen
L. C.
Mater. Sci. Technol , 2005 , 20 , 1256 –1261 .