Investigation of microstructures produced by metal additive manufacturing using 3D cellular automata finite element modeling
Journal of Materials Research and Technology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 1, 2025
Language: Английский
A computational framework to predict weld integrity and microstructural heterogeneity: application to hydrogen transmission
J. Wijnen,
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J.D. Parker,
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Michael Gagliano
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et al.
Materials & Design,
Journal Year:
2024,
Volume and Issue:
unknown, P. 113533 - 113533
Published: Dec. 1, 2024
Language: Английский
Impact of process parameters on mechanical and microstructure properties of aluminum alloys and aluminum matrix composites processed by powder-based additive manufacturing
Zummurd Al Mahmoud,
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Babak Safaei,
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Mohammed Asmael
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et al.
Journal of Manufacturing Processes,
Journal Year:
2025,
Volume and Issue:
146, P. 79 - 158
Published: May 2, 2025
Language: Английский
Corrosion Behavior of Shot Peened Ti6Al4V Alloy Fabricated by Conventional and Additive Manufacturing
Materials,
Journal Year:
2025,
Volume and Issue:
18(10), P. 2274 - 2274
Published: May 14, 2025
Ti6Al4V
titanium
alloy
is
one
of
the
most
studied
for
its
properties
after
additive
manufacturing.
Due
to
widely
use
in
medical
applications,
are
investigated
various
aspects
surface
layer
property
improvement
and
later
compared
conventionally
manufactured
Ti-6Al-4V.
In
this
study,
corrosion
behavior
a
0.9%
NaCl
solution
shot
peened
Ti-6Al-4V
prepared
using
direct
metal
laser
sintering
(DMLS)
was
examined
electrochemical
testing
with
forged
alloy.
Shot
peening
performed
on
previously
polished
samples
subsequently
treated
CrNi
steel
shots.
Two
sets
pressure
were
selected:
0.3
0.4
MPa.
X-ray
diffraction
analysis
(XRD),
micro-computed
tomography
(Micro-CT),
scanning
electron
microscope
(SEM)
tests
roughness
hardness
measurements
used
characterize
samples.
The
conventional
characterized
by
an
α
+
β
structure,
while
had
α'
martensitic
structure.
obtained
results
indicate
that
resistance
higher
than
DMLSed
lowest
rates
noted
untreated
surfaces
CM/ref
DMLS/ref
reached
0.041
0.070
µA/cm2,
respectively.
Moreover,
development
has
influence
behavior.
Therefore,
increasing
inferior
resistance.
However,
better
performance
reported
low
frequency
range.
This
due
refinement
grain
acquired
process.
All
obtained,
related
behavior,
satisfactory
enough
all
can
be
as
materials
suitable
implant
applications.
Language: Английский
Crystal Plasticity Finite Element Simulation of Tensile Fracture of 316L Stainless Steel Produced by Selective Laser Melting
Guowei Zeng,
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Ziyang Huang,
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Bei Deng
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et al.
Metals,
Journal Year:
2025,
Volume and Issue:
15(5), P. 567 - 567
Published: May 21, 2025
Selective
Laser
Melting
(SLM)
of
316L
stainless
steel
exhibits
great
potential
prospects
for
engineering
applications
due
to
its
high
strength,
forming
freedom,
and
low
material
waste.
However,
the
unique
processing
technology
additive
manufacturing,
challenges
related
microstructure
differences
in
mechanical
properties
formed
parts
are
inevitable.
To
investigate
influence
building
direction
grain
boundary
strength
on
fracture
parameters
SLM
steel,
electron
backscatter
diffraction
(EBSD)
experiments
were
conducted
characterize
stainless-steel
specimens.
A
representative
volume
element
(RVE)
model
reflecting
was
established
based
a
combination
crystal
plastic
finite
method
(CPFEM)
UMAT
subroutine
technology.
The
plasticity
determined
by
comparing
results
tensile
tests.
Cohesive
elements
employed
inserted
at
boundaries
polycrystalline
RVE
simulate
intergranular
behavior
under
uniaxial
loading.
damage
mechanisms
microscale
analyzed.
simulated
stress–strain
curves
good
agreement
with
experimental
results;
hence,
combined
CPFEM
is
suitable
characterizing
response
steel.
revealed
that
cracks
initiate
stress
concentration
sites
propagate
along
increasing
external
load,
ultimately
leading
rupture.
Additionally,
influences
location
microcracks
their
propagation
significantly.
Language: Английский
Achieving uniformly refined grain structure in metal additive manufacturing: Experimental demonstration and analytical model development
Minglei Qu,
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Jiandong Yuan,
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Qilin Guo
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et al.
Additive manufacturing,
Journal Year:
2025,
Volume and Issue:
unknown, P. 104805 - 104805
Published: May 1, 2025
Language: Английский
Simulation of Localized Stress Impact on Solidification Pattern during Plasma Cladding of WC Particles in Nickel-Based Alloys by Phase-Field Method
Dongsheng Wei,
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Ming Chen,
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Chunlin Zhang
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et al.
Metals,
Journal Year:
2024,
Volume and Issue:
14(9), P. 1022 - 1022
Published: Sept. 7, 2024
As
materials
science
continues
to
advance,
the
correlation
between
microstructure
and
macroscopic
properties
has
garnered
growing
interest
for
optimizing
predicting
material
performance
under
various
operating
conditions.
The
phase-field
method
emerged
as
a
crucial
tool
investigating
interplay
microstructural
characteristics
internal
properties.
In
this
study,
we
propose
approach
couple
two-phase
growth
with
stress–strain
elastic
energy
at
mesoscale,
enabling
simulation
of
local
stress
effects
on
solidified
structure
during
plasma
cladding
WC
particles
nickel-based
alloys.
This
model
offers
more
precise
prediction
evolution
influenced
by
stress.
Initially,
phase
field
WC-Ni
binary
alloys
was
modeled,
followed
simulations
actual
conditions
their
impacts
ProCAST
finite
element
analysis
software.
results
indicate
that
increased
reduces
grain
boundary
migration,
decelerates
particle
dissolution
diffusion,
diminishes
formation
reaction
layers
Ostwald
ripening.
Furthermore,
experimental
validation
corroborated
model’s
predictions
were
consistent
observed
alloy
composites.
Language: Английский