Morphology, Microstructure, and Mechanical Properties of Fe50-TiC Composite Laser Cladding Layer on Cr12 Mold Steel

Qianting Wang; Xianbin Zeng; Changrong Chen; Guofu Lian; Xu Huang; Yan Wang

doi:10.3788/LOP202158.0714002

Laser & Optoelectronics Progress, Volume. 58, Issue 7, 0714002(2021)

Morphology, Microstructure, and Mechanical Properties of Fe50-TiC Composite Laser Cladding Layer on Cr12 Mold Steel

Qianting Wang^1,2,3, Xianbin Zeng^1,2,3, Changrong Chen^4、*, Guofu Lian⁴, Xu Huang⁴, and Yan Wang⁵

Author Affiliations

¹College of Materials Science and Engineering, Fujian University of Technology, Fuzhou , Fujian 350118, China

²Fujian Provincial Key Laboratory of Advanced Materials Processing and Application, Fuzhou , Fujian 350118, China

³Fujian Provincial Precision Processing Manufacturing Engineering Research Center, Fuzhou , Fujian 350118, China

⁴School of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou , Fujian 350118, China

⁵School of Computing, Engineering & Mathematics, University of Brighton, Brighton, BN2 4AT, England

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Figures & Tables(12)

Fig. 1. SEM images of cladding powders. (a) Fe50 powder; (b) TiC powder

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Fig. 2. Laser cladding system. （a） Photo；（b） schematic

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$Cross-sectional profile of laser layers with different TiC contents. (a) Without TiC; (b) mass fraction of TiC is 5%; (c) mass fraction of TiC is 15%; (d) mass fraction of TiC is 25%; (e) mass fraction of TiC is 35%; (f) mass fraction of TiC is 45%; (g) mass fraction of TiC is 55%$

Fig. 3. Cross-sectional profile of laser layers with different TiC contents. (a) Without TiC; (b) mass fraction of TiC is 5%; (c) mass fraction of TiC is 15%; (d) mass fraction of TiC is 25%; (e) mass fraction of TiC is 35%; (f) mass fraction of TiC is 45%; (g) mass fraction of TiC is 55%

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$Microstructures of laser cladding layers with different TiC contents. (a) Without TiC; (b) mass fraction of TiC is 5%; (c) mass fraction of TiC is 15%; (d) mass fraction of TiC is 25%; (e) mass fraction of TiC is 35%; (f) mass fraction of TiC is 45%; (g) mass fraction of TiC is 55%$

Fig. 4. Microstructures of laser cladding layers with different TiC contents. (a) Without TiC; (b) mass fraction of TiC is 5%; (c) mass fraction of TiC is 15%; (d) mass fraction of TiC is 25%; (e) mass fraction of TiC is 35%; (f) mass fraction of TiC is 45%; (g) mass fraction of TiC is 55%

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Fig. 5. Microhardness distributions of laser cladding layers

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Fig. 6. Wear volume of cladding layers

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Fig. 7. Friction coefficient curves of laser cladding layers

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$Wear profile of cladding layers with different TiC contents. (a) Without TiC; (b) mass fraction of TiC is 5%; (c) mass fraction of TiC is 15%; (d) mass fraction of TiC is 25%; (e) mass fraction of TiC is 35%; (f) mass fraction of TiC is 45%; (g) mass fraction of TiC is 55%$

Fig. 8. Wear profile of cladding layers with different TiC contents. (a) Without TiC; (b) mass fraction of TiC is 5%; (c) mass fraction of TiC is 15%; (d) mass fraction of TiC is 25%; (e) mass fraction of TiC is 35%; (f) mass fraction of TiC is 45%; (g) mass fraction of TiC is 55%

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Fig. 9. Porosity distribution of cladding layers

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Fig. 10. Phase diagram of ternary alloy Fe-Ti-C^[13,27]

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Table 1. Chemical composition of Fe50 and TiC powders
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Table 1. Chemical composition of Fe50 and TiC powders
Powder Mass fraction /%
Cr C Mo Si O Ni Fe N T.C F.C
Fe50 16.15 0.15 1.58 0.77 ＜0.1 1.75 Bal. - - -
TiC - - - - 0.5 0.08 - 0.5 ＞18.8 ＜0.5

Table 2. Friction and wear parameter

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Table 2. Friction and wear parameter

Item	Content
Abrasive pair material	Tungsten steel
Diameter of abrasive pair /mm	6
Loading force /N	35
Friction speed /(mm·s^-1)	10
Sliding distance /mm	4
Wear time /h	1
Friction mode	Reciprocating
Wear temperature	Room temperature

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Qianting Wang, Xianbin Zeng, Changrong Chen, Guofu Lian, Xu Huang, Yan Wang. Morphology, Microstructure, and Mechanical Properties of Fe50-TiC Composite Laser Cladding Layer on Cr12 Mold Steel[J]. Laser & Optoelectronics Progress, 2021, 58(7): 0714002

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