Article
Materials Science, Ceramics
Hao-zheng Wang, Yan-hai Cheng, Jin-yong Yang, Xiu-bing Liang
Summary: An Fe-based amorphous coating was applied on the surface of H13 steel by preheating the base materials followed by laser cladding. The study showed that preheating temperature significantly affects the quality and properties of the cladding layer, with the best comprehensive performance achieved at 250 degrees C.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Chemistry, Physical
Hainan Wang, Yanhai Cheng, Ruwei Geng, Bo Wang, Yongxiong Chen, Xiubing Liang
Summary: High-speed laser cladding (HLC) technology reduces heat input to the substrate surface by changing the convergence point of the laser beam and powder stream. HLC coatings have faster cooling rates compared to conventional laser cladding (CLC), resulting in coatings with low dilution and high amorphous content. A study comparing Fe-based amorphous coatings deposited on AISI 1020 seamless steel tubes using CLC and HLC processes found that the HLC coating had a more uniform distribution of amorphous phases, smaller and denser microstructure, and better corrosion resistance than the CLC coating. The mechanical properties and corrosion resistance of the coatings improved with increasing amorphous phase content.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Mechanical
Xiaobin Liu, Jiazi Bi, Ziyang Meng, Ran Li, Yan Li, Tao Zhang
Summary: In this study, a Co-based amorphous powder with high glass-forming ability was prepared by gas-atomization and used to fabricate a large-area amorphous coating through laser cladding. The effect of different laser parameters on the glass formation of the coating was investigated, and the resulting coating exhibited extremely high microhardness and wear resistance. Clarification of the wear-failure mechanism of the Co-based coating was achieved through microstructural and element-distribution analysis of various worn surfaces.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Optics
Dariusz Bartkowski, Aneta Bartkowska, Peter Jurci
Summary: The study investigated the effect of different laser beam power values and powder feeding rates on properties of Fe/WC metal matrix composite coatings produced by laser cladding. Coatings produced at a powder feeding rate of 12.50 g/min showed the highest microhardness and corrosion resistance.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Yanan Liu, Quan Wang, Jichang Xie, Xuejiao Yang, Peng Peng, Yue Wang, Mengrong Li, Chul Hee Ryu, Yun Hwan Joo, In Wha Jeong, Tae Hyun Sung, Liangliang Xu
Summary: An enhanced surface composite coating with improved nano-hardness was successfully prepared on Ti811 alloy using laser cladding processing. The investigations showed that the coating had multiple phases and the effective combination between interfaces ensured the improved nano-hardness of the coating.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Coatings & Films
Wei Chang, Guangchun Xiao, Hui Zhang, Hui Chen, Mingdong Yi, Jingjie Zhang, Zhaoqiang Chen, Chonghai Xu
Summary: Graphene (Gr)-reinforced Co-based (Co50) composite coatings were prepared on 40Cr steel substrates using laser cladding technology. The effects of different amounts of Gr addition on the microstructure and mechanical properties of the coating were investigated. The addition of an appropriate amount of Gr improved the overall properties of the coating, with most of the Gr forming carbides under laser irradiation. The addition of Gr significantly refined and distributed the grains, resulting in enhanced microhardness and reduced friction.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Coatings & Films
Keyao Li, Jun Liang, Jiansong Zhou
Summary: Fe-based amorphous composite coatings were prepared by laser cladding technology with different Fe to Cr ratios to study the effect of Cr content on glass forming ability and mechanical properties. The coating exhibited the best glass forming ability and hardness when the Fe to Cr ratio was 0.33, with appropriate Cr content effectively inhibiting the formation of intermetallic compounds and enhancing wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Physical
Qiaofeng Bai, Changyao Ouyang, Chunjiang Zhao, Binhui Han, Yingliang Liu
Summary: The study used laser cladding technology to prepare an Fe-based alloy coating on a 27SiMn hydraulic support, and a turning treatment was applied to obtain samples from the upper and middle regions of the cladding layer. Through SEM, XRD, friction and wear tests, and microhardness analysis, the influence of microstructure, phase composition, hardness, and wear resistance in different areas of the cladding layer was investigated. The results showed differences in bcc phase content, metal compound content, hardness, and wear mechanisms between the upper and middle regions of the cladding layer.
Article
Materials Science, Coatings & Films
Jing Liang, Ye Liu, Sheng Yang, Xiuyuan Yin, Suiyuan Chen, Changsheng Liu
Summary: Different coatings with various compositions were fabricated on TC4 alloys using laser cladding, and their composition, microstructure, microhardness, and wear resistance were studied. The Ti-30Al-16Ni-3Si coating exhibited higher hardness and wear resistance due to its unique phase distribution and structural characteristics.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Chen Cui, Meiping Wu, Xiaojin Miao, Zishuo Zhao, Yuling Gong
Summary: FeCoNiCrMo high-entropy coatings and CeO2/FeCoNiCrMo composite coatings were successfully prepared on TC4 alloy surface using laser cladding technology. The addition of CeO2 improved the corrosion resistance of the coatings by forming a stronger passive film that inhibited pitting corrosion. HEA coatings exhibited higher microhardness and improved corrosion resistance compared to TC4 alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Coatings & Films
Xuechao Liu, Haifeng Wang, Yi Liu, Canming Wang, Qiang Song, Hongzhi Cui, Chunzhi Zhang, Kun Huang
Summary: 316L SS coatings with different Nb content (0.2, 0.5, 1.0, 3.0, 5.0, 7.0 wt%) were fabricated on Q235 steel plate by laser cladding. The addition of Nb changed the phase structure of 316L and increased the microhardness of the coating. Nb 1.0 coating showed the best corrosion resistance, while excessive Nb led to decreased corrosion resistance.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Hongling Zhang, Wenjuan Li, Huanhuan Xu, Liang Chen, Junshan Zeng, Zhibing Ding, Wenmin Guo, Bin Liu
Summary: This study aims to improve the glass formation ability of high-entropy amorphous alloys by designing Fe19.6Co19.6Ni19.6Cr19.6(B13.72Si5.88)(19.6)Y-2 alloy through microalloying. The high-entropy amorphous alloy coating exhibits excellent corrosion resistance in NaCl solution.
Article
Materials Science, Multidisciplinary
Yao Kong, Zongde Liu, Xinyu Wang, Jueyan Li, Quanbing Liu
Summary: The present study successfully prepared C22 coating on TP347H tube by laser cladding and aimed to evaluate its potential as a high temperature oxidation protection for boiler tubes. The results showed that the C22 coating exhibited superior oxidation resistance and can be used as an extensively applicable oxidation resistant coating.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Xiaobin Liu, Jiazi Bi, Ziyang Meng, Yubin Ke, Ran Li, Tao Zhang
Summary: This study focused on inhibiting the generation of microcracks in Co-based metallic glass amorphous coatings by increasing substrate temperature and adding toughened Fe powders, as well as investigating the neutron shielding performance of coatings with high B content. The results showed that these methods effectively suppressed the initiation and propagation of microcracks, while high B content coatings exhibited excellent neutron shielding performance.
Article
Chemistry, Physical
H. C. Li, D. G. Wang, C. Hu, J. H. Dou, H. J. Yu, C. Z. Chen, G. C. Gu
Summary: The study focused on the bioactivity improvement of titanium alloy through laser cladding derived ceramic coatings. The presence of MgO in the coatings affected their microstructure, mechanical properties, and biological performance. The formation of apatite in simulated body fluid (SBF) was analyzed, showing promising results for the biocompatibility of the cladding coatings.
APPLIED SURFACE SCIENCE
(2021)
