Effect of V content on microstructure and properties of laser cladding Fe-Cr alloy coatings

Zhang Xuefeng; Qing Guangyang; Zhou Haoran; Weng Liu; Chen Min; Zhao Haiquan; Wu Botao; Zhang Xin

doi:10.7513/j.issn.1004-7638.2024.06.012

Volume 45 Issue 6

Dec. 2024

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Article Navigation > IRON STEEL VANADIUM TITANIUM > 2024 > 45(6): 87-93

Zhang Xuefeng, Qing Guangyang, Zhou Haoran, Weng Liu, Chen Min, Zhao Haiquan, Wu Botao, Zhang Xin. Effect of V content on microstructure and properties of laser cladding Fe-Cr alloy coatings[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(6): 87-93. doi: 10.7513/j.issn.1004-7638.2024.06.012

Citation:

Zhang Xuefeng, Qing Guangyang, Zhou Haoran, Weng Liu, Chen Min, Zhao Haiquan, Wu Botao, Zhang Xin. Effect of V content on microstructure and properties of laser cladding Fe-Cr alloy coatings[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(6): 87-93. doi: 10.7513/j.issn.1004-7638.2024.06.012

Citation:

Zhang Xuefeng, Qing Guangyang, Zhou Haoran, Weng Liu, Chen Min, Zhao Haiquan, Wu Botao, Zhang Xin. Effect of V content on microstructure and properties of laser cladding Fe-Cr alloy coatings[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(6): 87-93. doi: 10.7513/j.issn.1004-7638.2024.06.012

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Effect of V content on microstructure and properties of laser cladding Fe-Cr alloy coatings

doi: 10.7513/j.issn.1004-7638.2024.06.012

Zhang Xuefeng^{1, 2, 3
,
,},
Qing Guangyang⁴,
Zhou Haoran^{1, 2},
Weng Liu^{1, 2},
Chen Min^{1, 2},
Zhao Haiquan¹,
Wu Botao¹,
Zhang Xin¹

1.
Vanadium and Titanium Resources Comprehensive Utilization Key Laboratory of Sichuan Province, Panzhihua 617000, Sichuan, China
2.
Key Laboratory of Vanadium and Titanium Testing in China, Panzhihua 617000, Sichuan, China
3.
Sichuan Vanadium & Titanium Industrial Technology Institute, Panzhihua 617000, Sichuan, China
4.
Sichuan Guoxin Machinery Manufacturing Co., Ltd., Panzhihua 617000, Sichuan, China

Received Date: 2024-05-20
Available Online: 2024-12-30
Publish Date: 2024-12-30

Abstract

Abstract

Iron-chromium alloy coatings with varying V content were fabricated using laser cladding. The microstructural and performance variations of the laser-cladded iron-chromium alloy coatings with different V contents were investigated using metallographic observation, SEM & EDS, and X-ray diffraction analysis. The results indicate that at lower V content, the iron-chromium alloy coating predominantly exhibits a dendritic growth mode. At the coating interface, the dendritic grew rapidly, Cr elements do not have sufficient time to completely dissolve into the matrix, causing the matrix diffraction peaks to shift to higher angles. Increasing V content promotes the transition from dendritic to cellular growth, effectively improving the incomplete dissolution of Cr elements in the matrix and leading to a more uniform coating structure. The formation of VC promotes the transformation of γ-Fe to martensite during solidification, and the hardness of the coating increases. However, when the V content increases to 2%, the ferrovanadium content with a higher melting point increases, resulting in an increase in pore defects, which makes the wear resistance of the coating decrease. When the V content in the coating is 1 %, the hardness and wear resistance are the best.
- laser cladding,
- VC,
- iron-chromium alloy coating,
- microstructure,
- performance

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References(24)

References

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