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电沉积Fe-Ni-Cr纳米晶镀层的制备及性能研究常季,陈吉,宋见,黄澳,刘元福辽宁石油化工大学机械工程学院摘 要:采用脉冲电沉积方法从Cr3+溶液中制备Fe-Ni-Cr纳米晶合金镀层,利用SEM,EDS和XRD对Fe-Ni-Cr合金镀层的表面形貌,化学组成和晶粒结构进行观察;利用电化学工作站对镀层进行极化曲线测试并与传统的304不锈钢进行对比.结果表明:电沉积镀层为纳米晶,无裂纹,表面光亮,晶粒尺寸大多分布在1040 nm之间,镀层主要元素成分含量Cr为25.52%,Fe为59.61%,Ni为6.55%,与传统304不锈钢相比,Fe-Ni-Cr纳米晶镀层在5%的H2SO4溶液的自腐蚀电位提高了近30 m V,自腐蚀电流密度降低了近1/8,维钝电流降低了近1/10.因此,Fe-Ni-Cr纳米晶合金镀层表......
A Comparison Study of Wear and Fretting Fatigue Behavior Between Cr-alloyed Layer and Cr-Ti Solid-solution LayerShou-Ming Yu,Dao-Xin Liu,Xiao-Hua Zhang,Cheng-Song LiuSchool of Aeronautics,Institute... of a Cr-alloyed layer and a Cr-Ti solid-solution layer.The hardness and toughness of both layers were evaluated to support this comparison.The results showed that the Cr-alloyed layer had high surface......
performed tensile test of substrate (steel sheet), nano-indentation of coating layer and measured the shear strength at the interface. Using a failure model, we then carried out FE simulation of failure at a region where local deformation is significant. We investigated the behavior of substrate, coating layer and interface when the strain for failure in FE simulation varied. 2 Experimental 2.1......
Theoretical and experimental investigation on giant magnetoresistive materials with amorphous ferromagnetic layer WEN Qi-ye(文岐业), ZHANG Huai-wu(张怀武), SONG Yuan-qiang(宋远强), JIANG Xiang-dong(蒋向东...-spin-valve (PSV) sandwiches using amorphous CoNbZr alloy as soft magnetic layer were fabricated by magnetron sputtering. The giant magnetoresistance (GMR) and its dependence on the thickness......
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Effect of rare earths on mechanical properties of plasma nitrocarburized surface layer of 17-4PH steel WU Danlei1,LIU Ruiliang1,YAN Mufu1 (1.National Key Laboratory for Precision Hot Processing...-ray analyzer, X-ray diffractometer, microhardness tester and pin-on-disc tribometer. The results showed that RE atoms could diffuse into the surface layer of 17-4PH steel plasma nitrocarburized at 500......
Effect of dipole layer of Alq3 and metal on organic electroluminescence XU Xue-mei(许雪梅)1, WU Jian-hao(吴建好)1, WANG Hua(王 华)1, WU Cheng-de(吴承德)1, YE Jun-hua(叶俊华)1, WU Ai-jun(吴爱军)1, QU Shu(瞿..., Changsha 410082, China Received 15 July 2007; accepted 10 September 2007 Abstract: The effect of dipole layer of Alq3 and metal on organic electroluminescence in organic light-emitting diodes......
Effects of A Top SiO2 Surface Layer on Cavity Formation and Helium Desorption in Silicon Lü Yiying1,Alquier D2,Yin Lijun1,Liu Changlong1 (1.Department of Physics, School of Science, Tianjin... Technology, Institute of Advanced Materials Physics Faculty of Science, Tianjin 300072, China) Abstract:Cz n-type Si (100) samples with and without a top SiO2 layer were implanted with 40 keV helium ions......
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Research of the Plasma Sulfide Layer Formed on the Nitrocarburizing Layer LI Xin1,HU Chun-hua1,QIU Ji1,HUANG Yuan-lin1,Ma Shi-ning1 (1.Key Laboratory For Remanufacturing, Beijing, China) 摘要:Low... are investigated by SEM and EDS.Results show that under proper treatment parameters, there are sulfide layer on both of the surfaces, and can more easily obtain sulfide layers on the surface of nitrocarburizing......
