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Fangping Yao, Jinhua Li, Lijin Fang and Zhi Ming
In order to maximize the performance of the nickel-based cladding layer without adding a reinforcing phase, ultrasonic vibrations of different frequencies are assisted in the laser cladding process. The morphology of the cladding layer was analyzed by a ...
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Changyao Ouyang, Qiaofeng Bai, Xianguo Yan, Zhi Chen, Binhui Han and Yan Liu
In this paper, the corrosion performance of a laser cladding Fe-based alloy coating on the surface of 27SiMn steel was studied. The Fe-based alloy coating was prepared on a 27SiMn steel surface by high-speed laser cladding. The microstructure, morphologi...
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Feifei Huang, Erju Liu, Yi Qin, Qingrui Wang, Ying Jin, Lei Wen and Hai Chang
By applying 2205 duplex stainless steel powders to repair and improve carbon steel, multi-pass laser-cladding tests were conducted on Q235 carbon steel surfaces with different laser powers in the range of 1.9~2.5 kW in order to evaluate the performance o...
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Jae-Il Jeong, Jong-Hyoung Kim, Si-Geun Choi, Young Tae Cho, Chan-Kyu Kim and Ho Lee
The bearing is a machine element that plays an important role in rotating the shaft of a machine while supporting its weight and load. Numerous bearings have been developed to improve durability and life, depending on the functions and operating conditio...
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Yinan Li, Xianbao Liu, Zhikang Zhou, Lei Zhang and Zilong Peng
A TiN and TiN·Ti2Cu reinforced copper matrix composite layer was cladded onto a T3 copper substrate to improve the anti-wear performance of copper products by means of the nitrogen-shielded gas tungsten arc cladding method (N2-GTAC). Better than the trad...
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Mingke Li, Kepeng Huang and Xuemei Yi
Laser cladding, a novel surface treatment technology, utilizes a high-energy laser beam to melt diverse alloy compositions and form a specialized alloy-cladding layer on the surface of the substrate to enhance its property. However, it can generate subst...
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Kefeng Lu, Jian Zhu, Delin Guo, Minghui Yang, Huajian Sun, Zekun Wang, Xidong Hui and Yongling Wu
Nowadays, high-entropy alloys (HEAs) have become a hot research topic in the field of coating materials. However, HEAs have a large wide range of compositional systems, and the differences in their composition inevitably lead to the significant variation...
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Haitao Yue, Ning Lv, Chenguang Guo, Jianhua Zhai, Weibing Dai, Jianzhuo Zhang and Guochao Zhao
To determine the optimal process parameters for the preparation of a Co-based alloy cladding layer, the experimental research of laser cladding Co-based alloy was carried out based on the optimal process window and grey relational analysis methods with 4...
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Serhii Pozdieiev,Oleksandr Nuianzin,Olena Borsuk,Oksana Binetska,Andrii Shvydenko,Bogdan Alimov
Pág. 39 - 45
The value of the thermal conductivity coefficient depending on the temperature of the samples of steel rod fragments with fire-retardant cladding has been determined in the present research.The thermal conductivity coefficient of mineral wool fire-retard...
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Haozheng Qu, Liang Yin, Michael Larsen and Raul B. Rebak
The corrosion-resistant properties of IronChromium?Aluminum (FeCrAl) alloys have been known for nearly a century. Since the 1950s, they have been explored for application in the generation of nuclear power. In the last decade, the focus has been on the u...
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Feng Li, Shisong Zheng and Fang Zhou
In this study, AlFeCrMoNi1.8Nb1.5 (at.%) eutectic high-entropy alloy (EHEA) coating was successfully prepared on the surface of M2 high-speed steel (HSS) by wide-laser cladding. The effects of laser defocusing amount, laser power, scanning speed, and pre...
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Linlin Liu, Yueqi Qiao and Peng Xu
Known as having a stress self-accommodation characteristic, the laser cladding shape memory alloy (SMA) coatings have been widely used in material failure repair. Nevertheless, their further development is greatly limited by their low microhardness (250 ...
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Tao Wu, Yunxiang Chen, Bo Lin, Litao Yu, Wanyuan Gui, Jiheng Li, Yuan Wu and Dawen Zeng
Wear and corrosion resistant properties of high entropy alloy coatings (HEAC) on H13 steel are of particular interest for industrial applications. The CoCrFeNi HEA/WC composite coatings (HEACC) developed in this study were successfully prepared by incorp...
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Bowen Shi, Xiaokai Mu, Huan Zhan, Linhui Deng, Tao Li and Hongchao Zhang
Almost all of the research on cracks in laser cladding is based, at present, on a horizontal substrate, which cannot be directly applied to prepare high performance coatings, especially high hardness coatings, on tilted substrate. In this work, the influ...
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Tiankai Li, Haiyang Long, Changming Qiu, Mingming Wang, Dongdong Li, Zhen Dong and Yongliang Gui
When laser cladding is used to repair parts, the interaction of parameters has a significant influence on equipment performance. In order to explore the process parameters and quality of Ni60PTA coating, the statistical relationship between the process p...
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Chao Chen, Junfa Wang, Yiyuan Ge and Lili Ma
The structural and elastic properties of (Fe, Cr, W)7C3 were investigated by first principles.
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Jihong Li, Longyu Lei, Mingke Du, Zhiqiang Zhang and Min Zhang
Due to the huge difference in thermophysical properties, it is difficult to obtain a defect-free bonding interface between copper and steel. A Cu-Ni-Ti interlayer was added between a TiC-reinforced copper matrix composite coating and Q235 steel in this s...
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Gifty Oppong Boakye, Laura E. Geambazu, Arna M. Ormsdottir, Baldur G. Gunnarsson, Ioana Csaki, Francesco Fanicchia, Danyil Kovalov and Sigrun N. Karlsdottir
Materials can be subjected to severe wear and corrosion due to high temperature, high pressure and mechanical loads when used in components for the production of geothermal power. In an effort to increase the lifetime of these components and thus decreas...
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Try Ramadhan, Beta Paramita and Ravi Shankar Srinivasan
The strategic issue faced by the Ministry of Public Works and Housing, Republic of Indonesia (PUPR) is the large housing backlog, especially in the urban areas. Low-income communities earning less than 2 USD/day are found as the most vulnerable to lack o...
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Bowen Yan, Yanan Li, Xiao Li, Xuhong Zhou, Min Wei, Qingshan Yang and Xu Zhou
This paper investigates the twisted wind effect on a typical super-tall building (500-m-tall square prism) by conducting pressure model wind tunnel tests. Two twisted wind fields (TWFs) with maximum yaw angles of approximately 30° and 20°, respectively, ...
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