In the present work, laser direct deposition was used to build multi-layer structures of nickel-based alloy Inconel 690 reinforced with titanium carbide particles at 18.4%, 27.2%, and 40.0% by volume. Optical and electron microscopy of sectioned specimens revealed uniform distribution of titanium carbide particles throughout the multi-layer depositions and a near absence of internal voids. The ratios of Inconel 690 to TiC in the depositions matched the levels in the initial powder mixtures. The presence of carbide particles coincided with refinement of matrix microstructure and introduction of a finely dispersed crystalline phase. High-temperature dissolution of titanium carbide was not detected.

1.
Keicher
,
D.M.
,
Smugeresky
,
J.E.
,
Romero
,
J.A.
,
Griffith
,
M.L.
, and
Harwell
,
L.D.
, (
1997
) “
Using the laser engineered net shaping (LENS) process to produce complex components from a CAD solid model
,”
Lasers as Tools for Manufacturing II: Proceedings of SPIE
, v.
2993
, pp.
91
97
.
2.
Dinda
,
G.P.
,
Dasgupta
,
A.K.
, and
Mazumder
,
J.
, (
2009
) “
Laser aided direct metal deposition of Inconel 625 superalloy: Microstructural evolution and thermal stability
,”
Materials Science and Engineering A
, v.
509
, n.
1-2
, pp.
98
104
.
3.
Paul
,
C.P.
,
Ganesh
,
P.
,
Mishra
,
S.K.
,
Bhargava
,
P.
,
Negi
,
J.
, and
Nath
,
A.K.
, (
2007
) “
Investigating laser rapid manufacturing for Inconel-625 components
,”
Optics and Laser Technology
, v.
39
, n.
4
, pp.
800
805
.
4.
Sun
,
H.
,
Zhong
,
M.
,
Liu
,
W.
,
He
,
J.
, and
Li
,
X.
, (
2005
) “
Direct laser deposition of Inconel 738 on directionally solidified Ni-base supperalloy component
,”
Lasers in Material Processing and Manufacturing II: Proceedings of SPIE
, v.
5629
, pp.
84
92
.
5.
Qi
,
H.
,
Azer
,
M.
, and
Ritter
,
A.
, (
2009
) “
Studies of standard heat treatment effects on microstructure and mechanical properties of laser net shape manufactured INCONEL 718
,”
Metallurgical and Materials Transactions A
, v.
40A
, n.
10
, pp.
2410
2422
.
6.
Blackwell
,
P.L.
, (
2005
) “
The mechanical and microstructural characteristics of laser-deposited IN718
,”
Journal of Material Processing Technology
, v.
170
, n.
1-2
, pp.
240
246
.
7.
Tuominen
,
J.
,
Vuoristo
,
P.
,
Mantyla
,
T.
,
Latokartano
,
J.
,
Vihinen
,
J.
, and
Andersson
,
P.H.
, (
2003
) “
Microstructure and corrosion behavior of high power diode laser deposited Inconel 625 coatings
,”
Journal of Laser Applications
, v.
15
, n.
1
, pp.
55
61
.
8.
Milewski
,
J.O.
,
Dickerson
,
P.G.
,
Nemec
,
R.B.
,
Lewis
,
G.K.
, and
Fonseca
,
J.C.
, (
1999
) “
Application of a manufacturing model for the optimization of additive processing of Inconel alloy 690
,”
Journal of Materials Processing Technology
, v.
91
, n.
1
, pp.
18
28
.
9.
Zheng
,
B.
,
Topping
,
T.
,
Smugeresky
,
J.E.
,
Zhou
,
Y.
,
Biswas
,
A.
,
Baker
,
D.
, and
Lavernia
,
E.
, (
2010
) “
The influence of Ni-coated TiC on laser-deposited IN625 metal matrix composites
,”
Metallurgical and Materials Transactions A
, v.
41A
, n.
3
, pp.
568
573
.
10.
Nurminen
,
J.
,
Nakki
,
J.
, and
Vuoristo
,
P.
, (
2009
) “
Microstructure and properties of hard and wear resistant MMC coatings deposited by laser cladding
,”
International Journal of Refractory Metals and Hard Materials
, v.
27
, n.
2
, pp.
472
478
.
11.
Cooper
,
K.P.
, (
1986
) “
Improving the wear resistance by forming hard metal matrix-ceramic composite surface layers
,”
Journal of Vacuum Science and Technology A
, v.
4
, n.
6
, pp.
2857
2861
.
12.
Special Metals Corporation Products,oINCONEL ® alloy 690
, www.specialmetals.com/products, retrieved July 29, 2011.
13.
Exner
,
Hans
E.
, and
Hougardy
,
Hans
P.
, (
1988
) editors.
Quantitative Image Analysis of Microstructures
.
Stuttgart
:
Verlag
.
This content is only available via PDF.
You do not currently have access to this content.