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Effect of different incidence angles on bonding performance in cold spraying LI Gang(李 刚)1, WANG Xiao-fang(王晓放)1, LI Wen-ya(李文亚)2 1. School of Energy and Power Engineering, Dalian University... behaviour of spray particles impacting upon a substrate under the oblique impact condition in cold spraying was investigated using finite element analysis(FEA) method. The effect of incidence angle......
Microstructure and Sliding Wear Behaviour of Ni(Cr)-TiB2 Coatings Deposited by HVOF Spraying of SHS Powders Zohreh Sadeghian1,Behnam Lotfi2 (1.Department of MaterialsScience and Engineering... the microstructure and sliding wear behaviour of cermet coatings deposited by high velocity oxy-fuel (HVOF) spraying. Two cermets were prepared with the following target compositions namely, Ni (Cr)-65 wt.% TiB2......
高速空气燃料火焰(HVAF)喷涂超薄WC-10%Co-4%Cr涂层的微观结构及物理力学性能研究邹政,王健,李泽超,黄康培,杨显兵摘 要:电镀铬因使用六价铬(Cr+6)导致环境污染,高速空气燃料火焰(HVAF)喷涂制备超薄高硬度,高致密度涂层为低成本替代电镀铬提供了可能.本文采用高速空气燃料火焰喷涂工艺在6101A铝合金制备了超薄WC-10%Co-4%Cr涂层,在T2紫铜合金表面制备了用于对比的薄WC-10%Co-4%Cr涂层,采用金相显微镜观察两种涂层的组织结构,采用纳米压痕仪检测了涂层硬度和弹性模量.结果表明,高速空气燃料火焰喷涂制备的两种涂层结构致密均匀,孔隙率为0.1%~0.2%,低于一般高速火焰喷涂工艺制备的涂层;超薄涂层近涂层表面和涂层/基体界面的硬度分别为12.3 GPa和20 GPa,比......
Characterization of NbSi2–Al2O3 nanocomposite coatings prepared with plasma spraying mechanically alloyed powdersZohreh Yazdani,Fathallah Karimzadeh,Mohammad-Hasan Abbasi,Abbas AminiDepartment...–4Vsubstrates. The powders were agglomerated to obtain suitable particle sizes for spraying. The agglomerated powders were then plasma-sprayed using atmospheric plasma spraying. The structural transformations......
Field Application of Automated Power Arc Spraying System on Steel Bridge Deck SUN Zhi1,PANG Xu-nan1,YI Chun-long1,SUO Shuang-fu2 (1.China University of Mining & Technology, Beijing 100084, China... for bridge engineers for many years. An automated power arc spraying system was first designed and field applied to coating the deck of Wuhan Junshan Yangtze River Bridge in high efficiency. This steel bridge......
Microstructure and Anticorrosion Property of AT13 Coatings Made by Combination of Nanoparticles Doping and Plasma Spraying Technique LUO Ping-ya1,LI Chun-fu1,HE Tao-e2,ZHANG Ying2,WANG Bin2,DAI... of steel 45# by air plasma spraying technique with the prefabricating powders. The microstructures of the AT13 prefabricating powders and the resulting coatings were investigated by SEM and EDS......
Deposition behavior of multi-particle impact in cold spraying processXiang-lin Zhou, Xiang-kun Wu, Hui-hua Guo, Jian-guo Wang, and Ji-shan Zhang State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China摘 要:In the practical cold-spraying process, a number of particles impact onto......
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Synthesis of nanocrystalline NiCrC alloy feedstock powders for thermal spraying by cryogenic ball millingKai Tao1) ,Xiang-lin Zhou1) ,Hua Cui2) ,Han-bin Chen1) ,Yong-bing Li1) ,and Ji-shan Zhang1) 1... and Technology Beijing,Beijing 100083,China摘 要:Nanocrystalline NiCrC alloy powders with a qualified particle size distribution for thermal spraying were synthesized......