TN305.2 99042750液体中激光熔蚀固体靶制备氮化碳纳米晶=Nano—crystallinecarbon nitrides prepared by laser ablatingsolid target in liquid[刊,中]/刘秋香,王金斌,杨国伟(湘潭大学现代物理研究所.湖南,湘潭(411105))//微细加工技...TN305.2 99042750液体中激光熔蚀固体靶制备氮化碳纳米晶=Nano—crystallinecarbon nitrides prepared by laser ablatingsolid target in liquid[刊,中]/刘秋香,王金斌,杨国伟(湘潭大学现代物理研究所.湖南,湘潭(411105))//微细加工技术.—1998,(2).展开更多
O484.1 2000042702等离子体辅助反应式脉冲激光熔蚀制备AlN薄膜的低温生长=Low temperature growth of AlN thinfilms deposited by reactively pulse-laser ablationwith plasma-assisted[刊,中]/汪洪海,郑启光,魏学勤,丘军林(华中理...O484.1 2000042702等离子体辅助反应式脉冲激光熔蚀制备AlN薄膜的低温生长=Low temperature growth of AlN thinfilms deposited by reactively pulse-laser ablationwith plasma-assisted[刊,中]/汪洪海,郑启光,魏学勤,丘军林(华中理工大学激光技术国家重点实验室.湖北,武汉(430074))//功能材料.—1999,30(2).—204—206使用等离子体辅助反应式脉冲激光溅射沉积薄膜的方法在Si(111)和Si(100)展开更多
In order to study the corrosion resistance of high-speed laser cladding(HLC) coating while improving production efficiency,a CoCrFeNiMo_(0.2)high-entropy alloy(HEA) coating was prepared by HLC.The optimized parameters...In order to study the corrosion resistance of high-speed laser cladding(HLC) coating while improving production efficiency,a CoCrFeNiMo_(0.2)high-entropy alloy(HEA) coating was prepared by HLC.The optimized parameters of HLC are laser power of 880 W,scanning speed of 18 m/min,overlapping ratio of 60%,and powder feed speed of 3 r/min.Then,the surface roughness,microstructure,phase composition,element distribution,and electrochemical properties in 3.5 wt% NaCl solution of the coatings were analyzed,respectively.The local surface roughness of the CoCrFeNiMo_(0.2)HEA coating was found to be 15.53 μm.A distinct metallurgical bond could be observed between the coating and the substrate.Compared to the conventional laser cladding(CLC),the results of electrochemical tests showed that CoCrFeNiMo_(0.2)HEA coating exhibited a significant passivation.The corrosion current density of 5.4411 × 10^(-6)A·cm^(-2) and the corrosion potential of-0.7445 V for the HLC coating were calculated by the Tafel extrapolation method.The CLC coating’s corrosion current density and corrosion potential are 2.7083×10^(-5)A·cm^(-2) and-0.9685 V,respectively.The HLC coating shows a superior corrosion resistance,crucially due to the uniform and fine grains.Under various complex and harsh working conditions,this method can be widely used in the field of repairing and remanufacturing of corro sion-proof workpiece s.展开更多
文摘TN305.2 99042750液体中激光熔蚀固体靶制备氮化碳纳米晶=Nano—crystallinecarbon nitrides prepared by laser ablatingsolid target in liquid[刊,中]/刘秋香,王金斌,杨国伟(湘潭大学现代物理研究所.湖南,湘潭(411105))//微细加工技术.—1998,(2).
文摘O484.1 2000042702等离子体辅助反应式脉冲激光熔蚀制备AlN薄膜的低温生长=Low temperature growth of AlN thinfilms deposited by reactively pulse-laser ablationwith plasma-assisted[刊,中]/汪洪海,郑启光,魏学勤,丘军林(华中理工大学激光技术国家重点实验室.湖北,武汉(430074))//功能材料.—1999,30(2).—204—206使用等离子体辅助反应式脉冲激光溅射沉积薄膜的方法在Si(111)和Si(100)
基金Project(2020E0264) supported by the Xinjiang Science and Technology Project Plan of Autonomous Region,ChinaProject(2020D01C030) supported by the Autonomous Region Natural Science Foundation,China。
文摘In order to study the corrosion resistance of high-speed laser cladding(HLC) coating while improving production efficiency,a CoCrFeNiMo_(0.2)high-entropy alloy(HEA) coating was prepared by HLC.The optimized parameters of HLC are laser power of 880 W,scanning speed of 18 m/min,overlapping ratio of 60%,and powder feed speed of 3 r/min.Then,the surface roughness,microstructure,phase composition,element distribution,and electrochemical properties in 3.5 wt% NaCl solution of the coatings were analyzed,respectively.The local surface roughness of the CoCrFeNiMo_(0.2)HEA coating was found to be 15.53 μm.A distinct metallurgical bond could be observed between the coating and the substrate.Compared to the conventional laser cladding(CLC),the results of electrochemical tests showed that CoCrFeNiMo_(0.2)HEA coating exhibited a significant passivation.The corrosion current density of 5.4411 × 10^(-6)A·cm^(-2) and the corrosion potential of-0.7445 V for the HLC coating were calculated by the Tafel extrapolation method.The CLC coating’s corrosion current density and corrosion potential are 2.7083×10^(-5)A·cm^(-2) and-0.9685 V,respectively.The HLC coating shows a superior corrosion resistance,crucially due to the uniform and fine grains.Under various complex and harsh working conditions,this method can be widely used in the field of repairing and remanufacturing of corro sion-proof workpiece s.
