Effects of SiC Particle Size on Microstructures and Properties of TiNi Based Cladding Layers

Table 1. Compositions of mixed powder in laser cladding (mass frication, %)
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Table 1. Compositions of mixed powder in laser cladding (mass frication, %)
Mixed powder Ti Ni SiC
Micro-SiC 50 40 10
Nano-SiC 50 40 10

Table 2. EDS results at different positions of bonding zone of cladding coating (atomic fraction, %)
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Table 2. EDS results at different positions of bonding zone of cladding coating (atomic fraction, %)
Position Ti Ni Si C Phase
A 61.16 18.98 15.43 4.43 Ti₂Ni/Ti₅Si₃
A' 48.12 45.96 2.92 3.00 TiNi
B 83.76 6.70 2.39 7.25 β-Ti
B' 56.28 3.14 36.75 3.83 Ti₅Si₃
C/C' 49.40 - - 50.60 TiC
D/D' 58.54 29.46 5.80 6.20 Ti₂Ni

Table 3. Elemental analysis results at different positions marked in Fig. 4(a) (atomic fraction, %)
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Table 3. Elemental analysis results at different positions marked in Fig. 4(a) (atomic fraction, %)
Element A B C D
Ti 48.550 63.782 63.554 57.265
Ni 44.346 30.119 29.301 1.415
Si 1.384 4.971 2.286 0.197
C 5.518 1.134 4.859 41.123
Phase TiNi TiNi/Ti₅Si₃ Ti₂Ni TiC

Table 4. Wear data of TC21 matrix and cladding coating

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Table 4. Wear data of TC21 matrix and cladding coating

Specimen	Wear scarwidth /μm	Abrasivearea /mm²	Wear loss /mm³	Wear rate /(mm³·h^-1)	Wear resistance /(h·mm^-3)
TC21 substrate	1676.7	0.187	0.934	1.868	0.535
M-SiC	1267.5	0.090	0.090	0.898	1.114
N-SiC	1375.8	0.128	0.128	1.268	0.789

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Sun Lin, Wei Chaoqun, Sui Xinmeng, Chen Zhuo, Zhang Weiping. Effects of SiC Particle Size on Microstructures and Properties of TiNi Based Cladding Layers[J]. Chinese Journal of Lasers, 2018, 45(5): 502002

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Paper Information

Category: laser manufacturing

Received: Oct. 23, 2017

Accepted: --

Published Online: May. 21, 2018

The Author Email: Lin Sun (1040488129@qq.com)

DOI:10.3788/CJL201845.0502002

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Compositions of mixed powder in laser cladding (mass frication, %)

Table 1. Compositions of mixed powder in laser cladding (mass frication, %)

Table 2. EDS results at different positions of bonding zone of cladding coating (atomic fraction, %)

Table 2. EDS results at different positions of bonding zone of cladding coating (atomic fraction, %)

Table 3. Elemental analysis results at different positions marked in Fig. 4(a) (atomic fraction, %)

Table 3. Elemental analysis results at different positions marked in Fig. 4(a) (atomic fraction, %)

Table 4. Wear data of TC21 matrix and cladding coating

Table 4. Wear data of TC21 matrix and cladding coating