High Temperature Strain of Metals and Alloys Part 11 docx
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 ... 44Nb–35Ti–6Al–5Cr–8V–1W–0.5Mo–
0.3Hf. The microstructure of extruded and recrystallized material consists of
a solid solution and of particles of titanium carb...
High Temperature Strain of Metals and Alloys Part 8 docx
... a/2[
¯
110 ] → a/6[
¯
121] + a/6[
¯
21
¯
1]
+APB
[
¯
101] 0.27
[0
¯
11] 0
[111 ] (
¯
111 ) [110 ] 0.27 a/2 [110 ] → a/3[ 211] + a/6[
¯
11
¯
2]+SISF
[101] 0.27
[0
¯
11] 0
High Temperature Strain of Metals and ... a/2[0
¯
11] → a/3[1
¯
12] + a/6[
¯
2
¯
1
¯
1]+SISF
[10
¯
1] 0.41
[
¯
110 ] 0
(
¯
1
¯
11) [ 011] 0.41
[101] 0.41
[
¯
110 ] 0
(1
¯
11) [ 011] 0.41
[
¯
101] 0.41...
High Temperature Strain of Metals and Alloys Part 12 docx
... 116
– dislocation splitting 112 ,
120–122, 129
– equations 99, 100
– influence of orientation,
temperature and stress
111 –120
– primary stage 118 , 119
– tertiary stage 118
– physical mechanism 43–45, ... 171
– influence of stress on 120
– influence of temperature on
116 118 , 120
– dislocation mechanisms of
strain 119 –127, 129
– properties 115
– shear strain...
High Temperature Strain of Metals and Alloys Part 1 ppt
... Republic of Germany
Printed on acid-free paper
ISBN-13: 978-3-527-31338-9
ISBN-10: 3-527-31338-9
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
refractory m...
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
... investiga-
tions of metals and alloys directly during high- temperature deformation. The
method of measurement of the irradiation intensit...
High Temperature Strain of Metals and Alloys Part 3 pdf
... directions [1
¯
11] ,
[
¯
111 ] and [001]. The Burgers vectors are
b
1
= a/2[1
¯
11] and
b
2
= a/2[
¯
111 ].
The third side of the network with
b
3
= a[001] appears to be formed as a
result of reaction
b
3
=
b
1
+
b
2
. ... (3.2)
is of great importance for our understanding of the physical mechanism of
high- temperature deformation.
Fig. 3.16 Histograms of...
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, ... mechanisms of deformation.
The average subgrain sizes,
D and the average subgrain misorientations,
η, have been systematically directly measured during high- temperature...
High Temperature Strain of Metals and Alloys Part 5 pdf
... 120
◦
60
◦
a
2
[110 ]
√
2
2
[110 ] 0
◦
a
2
[
¯
110 ]
√
2
2
[ 011] 60
◦
b.c.c. {110 } 90
◦
a
2
[111 ]
√
2
2
[110 ] 35.3
◦
a
2
[1
¯
11]
√
2
2
[1
¯
10] 35.3
◦
73.2
◦
a
2
[111 ]
√
2
2
[
¯
1
¯
10] 144.7
◦
a
2
[1
¯
11]
√
6
6
[1
¯
21] ... adequate understanding of dislocation processes in these ranges
of temperature and stress is of great practical importance. Most heat-res...
High Temperature Strain of Metals and Alloys Part 6 doc
... 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 of Metals and Alloys, Valim Levitin (Author)
Copyright
c
... engines.
One of the most important requirements is resistance to high- temperature
deformation. This has created a need for alloys that can with...
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...
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