High Temperature Strain of Metals and Alloys Part 7 pot
High Temperature Strain of Metals and Alloys Part 7 pot
... because we have used the results
of measurements of the particle sizes and the data of the strain rate tests.
6.3 Interaction of Dislocations and Particles 93
particles cannot be obstacles for ... ×60000.
88 6 High- temperature Deformation of Superalloys
6.2
Changes in the Matrix of Alloys during Strain
The specimens of industrial superalloys (see Table 2.1) were in...
High Temperature Strain of Metals and Alloys Part 9 potx
... mechanism of
strain of the investigated superalloys. There exists a competition between the
Orowan mechanism of bowing of the dislocations between the γ
particles
and the cutting of particles by partial ... direction.
124 7 Single Crystals of Superalloys
7. 3
Deformation of Single-crystal Superalloys at Higher Temperatures and Lower Stress
Increase in temperature up...
High Temperature Strain of Metals and Alloys Part 1 ppt
... Republic of Germany
Printed on acid-free paper
ISBN-13: 978 -3-5 27- 31338-9
ISBN-10: 3-5 27- 31338-9
Valim Levitin
High Temperature Strain
of Metals and Alloys
High Temperature Strain of Metals and Alloys, ... latticeparameters of thematrix andof the hardening
phase.
The subject of the last chapter is the peculiarities of the strain behavior of
refracto...
High Temperature Strain of Metals and Alloys Part 2 pptx
... been
determined by the X-ray method at high temperatures.
Pure metals, solid solutions and nickel-based superalloys have been stud-
ied.
High Temperature Strain of Metals and Alloys, Valim Levitin (Author)
Copyright
c
... 14.0 1.65 2 .70 – 2.99 – 0.003 2.04 rest
EI8 67 0.02 9.5 4. 47 – 5.26 9.82 5.12 0.020 – rest
EP199 0.05 19.8 2.14 1.42 9.10 4.54 – 0.008 – rest
High...
High Temperature Strain of Metals and Alloys Part 3 pdf
... 85 1.9 4.4
0.39 673 17. 0 130 1.1 6.0
20.0 152 0 .7 5.3
6 .7 50 1.4 4.5
Ni 0.51 873 8.9 66 0.9 4.8
9 .7 72 0 .7 4.5
1.3 10 2.0 5.3
0.62 1 073 2.0 14 1 .7 6.3
2 .7 20 1.0 7. 5
3.0 14 .7 1.5 3.1
0.45 610 5.1 ... 813 49.0 59 ± 573 ± 5
973 11.0 41 ± 269± 7
Nb 1233 39.2 67 ± 13 74 ± 6
1 370 29.4 109 ± 14 1 07 ± 10
44.1 60 ± 394± 6
Cu 74 6 7. 8 87 ± 683± 6
3.4
Sub-boundaries as Dis...
High Temperature Strain of Metals and Alloys Part 4 ppsx
... work, dA, and facilitates the generation
Fig. 4.3 Scheme of energetic barriers for the motion of the
screw dislocation with vacancy-absorbing jogs.
High Temperature Strain of Metals and Alloys, ... Calculated
λ,nm ˙ε, 10
7
s
−1
V, nm s
−1
˙ε, 10
7
s
−1
Ni+9.9Al 72 3 125 52 1.4 4.3 2.2
202 34 10.1 7. 6 11.5
873 70 54 0.9 2.8 1.0
136 33 13.9 8.2 13.0
Ni+9.5W 873 138 4...
High Temperature Strain of Metals and Alloys Part 5 pdf
... 2πZ)
−
µb
2πλX
(4.22)
High Temperature Strain of Metals and Alloys, Valim Levitin (Author)
Copyright
c
2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
ISBN: 3-5 27- 313389-9
67
5
Simulation of the Evolution of ... term on the right-hand side of Eq. (4. 27) .
In Fig. 4. 17 the calculated curves of the influence of temperature and stress
on the Γ value...
High Temperature Strain of Metals and Alloys Part 6 doc
... 5.40 46.1
0. 07 1.00 7. 07 35.2
In order to test the influence of the D and λ parameters, we deformed
specimens of nickel by 3% and 7% at room temperature and then annealed
them at 873 K. As a result ... preliminary decreased value of λ and increased value of D lead to the
strain rate decreasing when the applied stress is relatively low.
High Temperature Strain...
High Temperature Strain of Metals and Alloys Part 8 docx
... strengthening
phases of superalloys with the rate of the steady-state creep ˙ε of the same
alloys. The superalloy EI437B with
u
2
A
= 460 pm
2
at 1023K has the least
high- temperature strength of the three alloys ... Strain of Metals and Alloys, Valim Levitin (Author)
Copyright
c
2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
ISBN: 3-5 27- 313389-9
111
7
Single...
High Temperature Strain of Metals and Alloys Part 11 docx
... minimum strain rate of niobium and molybdenum is dependent ex-
ponentially on the applied stress at high temperatures.
The mean value of the activation energy of the high- temperature strain for
niobium ... of extruded and recrystallized material consists of
a solid solution and of particles of titanium carbide, TiC. The particle sizes
are between 200 and 500 nm...