Shuai Tian , Kaishan Nie , Zhengyi Zhang , Yuanpeng Liu , Zheng Li , Dong Wang
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引用次数: 0
Abstract
During friction stir welding (FSW) of silicon carbide particle reinforced aluminum matrix composites (SiCp/Al), the presence of hard SiC particles significantly increase tool wear and seriously shorten tool life. In this work, the high-entropy carbon nitride coatings of (TiZrNbMoTa)NCy were successfully prepared on H13 steel by magnetron sputtering technology with different carbon target power. The effects of N and C elements on the microstructure and mechanical properties of the coatings were systematically studied. The (TiZrNbMoTa)NCy coatings on H13 steel pin splited from friction stir welding tool were used to weld two different materials of SiCp/6092Al composites and 6061Al. The results show that all coatings have a single face-centered cubic structure. With the increase of C target power, the crystal grains are refined continuously and the preferred orientation transformation from (220) plane to (111) plane. When the C target power is 200 W, the coating hardness can reach 41.02 GPa and the elasticity modulus is 410.44 GPa. The binding force of the coating decreases with the increase of the C target power. The two different materials were successfully welded with coated H13 steel pin, and the HEANCy coating improve the wear resistance of the H13 tool than that without coating by nearly 63 %. The failure mechanism of welding tools is mainly abrasive wear.
期刊介绍：
Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance:
A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting.
B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.
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