Given to the incomparable advantages in topology optimization, lattice structure into component individual customization, selective laser melting (SLM) has attracted extensive attention from many industrial sectors, such as, aerospace, defense and biology. In this work, the Al/quasicrystal composite lattice samples with several cellular sizes ranged from1.5 mm to 5 mm were manufactured via using selective laser melting. The porosity of designed lattice structure sample is all fixed as 50%. The morphology of QC reinforcement on the top surface changes from micro desquamated to nano in-situ reacted, as the cellular size increases. The result indicates that cellular size has a significant influence on the compressive behavior of SLM processed lattice sample. As the cellular size increases from 1.5 mm to 5 mm, the fractural mechanism changes from 3-stages of linear elastic-plateau-densification to 2-stages of elastic-collapse. Moreover, both the first peak compressive strength and strain at failure decreases, when the cellular size increases. Furthermore, the SLM processed lattice 3 sample, which possesses large cellular size, broke into small fragments after the compression test.

1.
Su
Y.
,
Li
Z.
,
Gong
X.
,
Ouyang
Q.
,
Guo
Q.
,
Guo
C.
,
Zhang
J.
,
Zhang
D.
(
2016
)
Structural modeling and mechanical behavior of Metal-Porous-Polymer-Composites (MPPCs) with different polymer volume fractions
,
Composite Structure
153
,
673
681
.
2.
Banhart J. 4.14 Production of Metal Foams, in:
P.W.R.
Beaumont
,
C.H.
Zweben
(Eds.),
Compr. Compos. Mater. [1]
,
Elsevier
,
Oxford
,
2018
: pp.
347
363
.
3.
Ding
X.
,
Liu
Y.
,
Chen
X.
,
Zhang
H.
,
Li
Y.
(
2018
)
Optimization of cellular structure of aluminum foams produced by powder metallurgy method
,
Materials Letters
216
,
38
41
.
4.
Kang
N.
,
Coddet
P.
,
Ammar
M.-R.
,
Liao
H.
,
Coddet
C.
(
2017
)
Characterization of the microstructure of a selective laser melting processed Al-50Si alloy: Effect of heat treatments
,
Materials Characterization
130
,
243
249
.
5.
Xiao
Z.
,
Yang
Y.
,
Xiao
R.
,
Bai
Y.
,
Song
C.
,
Wang
D.
, (
2018
)
Evaluation of topology-optimized lattice structures manufactured via selective laser melting
.
Materials Design
143
,
27
37
.
6.
Matsumoto
R.
,
Kanatani
S.
,
Utsunomiya
H.
(
2016
)
Filling of surface pores of aluminum foam with polyamide by selective laser melting for improvement in mechanical properties
,
Journal of Materials Processing Technology
237
,
402
408
.
7.
Choy
S.Y.
,
Sun
C.-N.
,
Leong
K.F.
,
Wei
J.
, (
2017
)
Compressive properties of functionally graded lattice structures manufactured by selective laser melting
.
Materials Design
,
131
,
112
120
.
8.
Maskery
I.
,
Aboulkhair
N.T.
,
Aremu
A.O.
,
Tuck
C.J.
,
Ashcroft
I.A.
,
Wildman
R.D.
,
Hague
R. J. M.
, (
2016
)
A mechanical property evaluation of graded density Al-Si10-Mg lattice structures manufactured by selective laser melting
.
Materials Science and Engineering: A
,
670
,
264
274
.
9.
Gu
D.
,
Ma
C.
,
Xia
M.
,
Dai
D.
,
Shi
Q.
, (
2017
)
A Multiscale Understanding of the Thermodynamic and Kinetic Mechanisms of Laser Additive Manufacturing
.
Engineering
,
3
,
675
684
.
10.
Song
B.
,
Wang
Z.
,
Yan
Q.
,
Zhang
Y.
,
Zhang
J.
,
Cai
C.
,
Wei
Q.
,
Shi
Y.
, (
2017
)
Integral method of preparation and fabrication of metal matrix composite: Selective laser melting of in-situ nano/submicro-sized carbides reinforced iron matrix composites
.
Materials Science and Engineering: A
,
707
,
478
487
.
11.
Gu
D.
,
Meng
G.
,
Li
C.
,
Meiners
W.
,
Poprawe
R.
, (
2012
)
Selective laser melting of TiC/Ti bulk nanocomposites: Influence of nanoscale reinforcement
.
Scripta Materialia
,
67
,
185
188
.
12.
Li
Y.G.
,
Wei
Y.H.
,
Hou
L.F.
,
Guo
C.L.
,
Yang
.
S.Q.
(
2015
)
Fabrication and compressive behaviour of an aluminium foam composite
,
Journal of Alloys and Compounds
649
,
76
81
.
13.
Kang
N.
,
Fu
Y.
,
Coddet
P.
,
Guelorget
B.
,
Liao
H.
,
Coddet
C.
(
2017
)
On the microstructure, hardness and wear behavior of Al-Fe-Cr quasicrystal reinforced Al matrix composite prepared by selective laser melting
,
Materials & Design
132
,
105
111
.
14.
Fu
Y.
,
Kang
N.
,
Liao
H.
,
Gao
Y.
,
Coddet
C.
(
2017
)
An investigation on selective laser melting of Al-Cu-Fe-Cr quasicrystal: From single layer to multilayers
,
Intermetallics.
86
,
51
58
.
15.
Gibson
L.
,
Ashby
M.
 Cellular Solids: Structure and Properties,
Cambridge University press
,
Cambridge
,
1997
.
16.
Vrancken
B.
,
Cain
V.
,
Knutsen
R.
,
Humbeeck
J.V.
(
2014
)
Residual stress via the contour method in compact tension specimens produced via selective laser melting Scripta Materialia
87
,
29
32
.
17.
Morrish
S.J.N.
,
Pedersen
M.
,
Wong
K.F.W.
,
Todd
I.
,
Goodall
R.
(
2017
)
Size effects in compression in Electron Beam Melted Ti6Al4V diamond structure lattices
,
Materials Letters
190
,
138
142
.
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