Titanium alloys are used on aeronautical engine widely. In order to improve the surface properties of titanium alloy parts to meet the requirements of friction and wear properties, a functional graded cladding layer (Ti-FGCL) on Ti600 was successfully carried out by an experimental of laser multi-claddings.

Powder mixture was pre-placed on samples and cladding layer, the main components of Ti, Ni, Al, and Cr3C2 were changed from the bottom layer to the top. A 4kw cw CO2 laser was used to clad every layer. SEM and EDAM were used to analyze microstructure and components of Ti-FGCL. A pin-disc wear experiment was used to check the wear property of the cladding layers.

Experimental conclusions are as follows: A Ti-FGCL can be reached by laser multi-cladding, and no crack, poles, and obvious diseases in the layer. From bottom to top of the Ti-FGCL the components of Ti, Ni, Al are changed continuously. Dispersed ceramic phase of TiC can be obtained in the surface layer. The wear property of the surface layer of Ti-FGCL is 4 times than substrate materials (Ti600).

Topics
Friction, Lasers, Transition metal carbides, Alloys, Ceramics
1.
Zhang
Song
,
Zhang
Chunhua
,
Wu
Weitao
 et al (
2001
)
An in situ formed TiC particle reinforcement composite coating induced by laser melting on surface of alloy Ti6Al4V and its wearing performance
,
Metal Sin
,
37
(
3
),
315
–
320
Google Scholar
 
2.
Jiang
Ping
,
Zhang
Jijuan
,
Yu
Ligen
 et al (
2000
)
Wear-resistant Ti5Si3/Ti composite coatings made by laser surface alloying
,
Rare metal Materials and Engineering
,
29
(
4
),
269
–
272
Google Scholar
 
3.
Sun
Ronglu
,
Liu
Yong
,
Yang
Dezhuang
 et al (
2003
)
Microstructure and Tribological Properties of NiCrBSi-TiC Laser Clad Layer on Titanium Alloy Substrate
,
Chinese Journal Of Laser
,
30
(
7
),
659
–
662
Google Scholar
 
4.
Liu
Yuanfu
,
Wang
Huaming
. (
2003
)
Microstructure and Wear resistance of Laser Clad Ti5Si3 Reinforced Wear Resistant Inter metallic Composite Coating
,
Tribology
,
23
(
1
),
10
–
13
Google Scholar
 
5.
Sun
Ronglu
,
Guo
Lixin
,
Dong
Shangli
 et al (
2000
).
Microstructure of Laser-clad NiCrBSiC Coating on the Surface of Titanium alloy
,
Journal of Jimusi University(Natural Science Edition)
,
18
(
3
),
214
–
218
Google Scholar
 
6.
Meng Qing
wu
,
Geng
Lin
, et al (
2005
)
Laser Cladding Ni-based Composite on Titanium Alloy with Pre-placed B4C+NiCoCrAlY
,
Material Science Forum
Vols,
475-479
Google Scholar
 
7.
Wu
Wanliang
,
Wang
Zhenting
,
Sun
Jianfeng
 et al (
2005
)
Microstructure and Strengthening Mechanisms of Titanium Matrix Composite Layer by Laser Cladding
,
China Surface Engineering
,
18
(
4
),
9
–
12
Google Scholar
 
8.
Y.T.
Pei
 and
J. Th. M.
De Hosson
. (
2000
)
Producing Functionally Graded Coatings by Laser-powder Cladding
,
JOM-e
Google Scholar
 
9.
Cui
,
Aiyong
,
Hu
,
Fangyou
 et al (
2007
)
Laser Cladding of (Ti+Al/Ni)/(Cr2O3+CeO2
).
Chinese Journal Of Lasers
, Vol.
34
, Suppl,
47
–
50
Google Scholar
 
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© 2008 Laser Institute of America.
2008
Laser Institute of America
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