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Pressureless sintering of iron aluminides
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Pressureless sintering of iron aluminides
Pressureless sintering of iron aluminides
Forming processes discussed and coiq~iuiscm methods. Resonanr Effect of lubrication on densification of PM C steels in cold deformation and elec...
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Forming processes
discussed
and coiq~iuiscm
methods.
Resonanr
Effect of lubrication on densification of PM C steels in cold deformation
and elecrrical
cm cold deforma-
tion of 85% dense sintered O.$%C of 0.25,
0.5 and 0.75.
lubricant
were uzd.
tion crack
Fe-0.4%C
steels was Investigated
parts, described.
al&i1
M(oS, and no
It was shown that luhrica-
lateral
deformation
and
delayed
Lower aspect rates
inrtiation.
more irrespective
of lubrrcant
for densi~cati~~n
were deduced
order polynomi&
cd and correlated
methods
The
re-
were evatuat-
rvith metallographlc
itudics.
and Fe-
for aspect ratioh
Graphite,
and
their use to detect cracks and denhity gradients, m green and smtered
effects of lubncation
eddy current
reaisti\rity were cons&red
bsults from the diffcrrnt The
wa5 m‘ldr between
inspection,
Processing of aluminides Tape casting powders
of iron a~uminide
dens&d
used. Equation> to be second
with coefficients
related
c~~rn~~~siti(.ln,aspect ratio and lubricant
to
used.
Hot isostatic pressing of pre-hot-pressed tungsten silicide Application
of W silicide f&m in elcctromc
devices was noted, productinn vapcxkr deposition
being by physical
from sintered W-53 targets. It
was shown that the films may be contaminated with W-5
density
targets
pressed pre-forms. conditions target
sintering
of iron
particle sputtered off rhe target mate-
rials. This was shown to be avoidable high
Pressureless aluminides
made
by use of from
hot
A study of effects nf pnxess
was described.
materials
by HIP
Hot ~r~ssin~HIp
was reported
to allow
of
larger
areas of se~~i~~)nduct~~rmaterials To be ccyared.
Fe alumlnldes
srudie5 of pres5ureie55
sintcring
and elemental
of
of prc-all~)yed
were described. on powder Synrhebts exammed
Single stage water debinding injection moulded iron alloys
were d~sc~rsxxi with regard to
pr
characteri\tlcs
hehaviour
and green
of FeAl from elrmenral ;d
found
ro depend
rate, which ala> influenced
Fc-Al
depended density.
p
\inrered density.
Self-propagating high temperature synthesis of a ternary aluminide A mechcbd ior aqueous solvent Fe parts was introduced. tion and function
dehindmg
Structural
of the hinder
discussed with reference
of
composl-
system were
to avoiding oxidation.
Flaw detection Ultrasonic tomographic image reconstruction of metal powder compacts It was reported that ultrasonic
tomographic
image re~(-)nst~~ti(~n had heen us.4 to produce three-dimensmnal compacts and
density
described
images
to determine gradlcnts.
and involves
three orientations. using finite eIement a5say. Further
c>f green
the presence The scanning
powder of defects
technique
was
the sample
in
The results were evaluated m~~deIlin~ and destructive
studies were outlined.
Comparison of nondestructive detection methods in PM
Alloying and coating flaw
Manufacture and properties molybdenum-rhenium alloys
of
i).FxWlk~Ct .%I il ‘1>112’1 \if\ ,J{.-tp&J \, klki. kiki. C;zmINlY 1
www.metal-powder.net
MPR
June 2001
39
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