热喷涂技术最新文献_第8页

Next Generation Axial III Torch 下一代轴向III型火炬

热喷涂技术 Pub Date : 2021-05-27 DOI: 10.31399/asm.cp.itsc2021p0527

A. Kamble

引用次数: 0

Microstructure Development of an Electroplating Coated Nickel-Base SC Superalloy in Oxidation Processes—Simulation Results 电镀镍基SC高温合金在氧化过程中的组织发展-模拟结果

热喷涂技术 Pub Date : 2021-05-27 DOI: 10.31399/asm.cp.itsc2021p0101

K. Yuan, Z. Zheng

引用次数: 0

The Influence of the Substrate Topography on the Plasma Jet Flow and Particle Deposition as a Determining Factor of Thermal Barrier Coatings Build-Up Mechanisms in Plasma Spraying 基底形貌对等离子体射流和颗粒沉积的影响是等离子喷涂中热障涂层形成机制的决定因素

热喷涂技术 Pub Date : 2021-05-27 DOI: 10.31399/asm.cp.itsc2021p0542

T. Kiełczawa, P. Sokołowski, A. Małachowska

引用次数: 2

The Influence of Diamond Addition to Ni-Al Powder on Oxidation Behavior of Ni-Al During Plasma Spraying for High Performance Oxide-Free Ni-Al Intermetallic Coating Ni-Al粉末中添加金刚石对等离子喷涂高性能无氧化物Ni-Al金属间化合物涂层Ni-Al氧化行为的影响

热喷涂技术 Pub Date : 2021-05-27 DOI: 10.31399/asm.cp.itsc2021p0447

Li Zhang, Di Wang, Xian-jin Liao, Xiao-Tao Luo, Chang-jiu Li

{"title":"The Influence of Diamond Addition to Ni-Al Powder on Oxidation Behavior of Ni-Al During Plasma Spraying for High Performance Oxide-Free Ni-Al Intermetallic Coating","authors":"Li Zhang, Di Wang, Xian-jin Liao, Xiao-Tao Luo, Chang-jiu Li","doi":"10.31399/asm.cp.itsc2021p0447","DOIUrl":"https://doi.org/10.31399/asm.cp.itsc2021p0447","url":null,"abstract":"\u0000 Ni-Al intermetallics have excellent corrosion and oxidation resistance, but their use in thermal spraying has been limited due to issues with in-flight oxidation. In this study, a novel approach is proposed to remove oxide from Ni-Al droplets in-flight by adding a deoxidizer (diamond) to the feedstock powder. A mixture of nickel, aluminum, and diamond powders was mechanically alloyed using a combination of cryogenic and planetary ball milling. The resulting Ni/Al/diamond composite powder was then plasma sprayed via the APS process, forming Ni-Al coatings on Inconel 738 substrates. Phase composition, microstructure, porosity, and microhardness of the coatings were characterized by X-ray diffraction, scanning electron microscopy, image analysis, and hardness testing, respectively. Oxygen content measurements showed that the coatings contained significantly less oxygen than coatings made from ordinary Ni/Al powders. In-flight particle temperatures were also measured and found to be higher than 2300 °C. The low oxygen content in the coatings is attributed to the in-situ deoxidizing effect of ultrahigh temperature droplets which are also oxide-free.","PeriodicalId":70745,"journal":{"name":"热喷涂技术","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84481454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Fabrication of Cavitation Erosion Resistant Bronze Coatings by Thermal and Kinetic Spraying for Maritime Applications 船舶用热喷涂和动力喷涂制备抗空泡侵蚀青铜涂层

热喷涂技术 Pub Date : 2021-05-27 DOI: 10.31399/asm.cp.itsc2021p0553

M. Hauer, F. Gärtner, S. Krebs, T. Klassen, M. Watanabe, S. Kuroda, W. Krömmer, K. Henkel

{"title":"Fabrication of Cavitation Erosion Resistant Bronze Coatings by Thermal and Kinetic Spraying for Maritime Applications","authors":"M. Hauer, F. Gärtner, S. Krebs, T. Klassen, M. Watanabe, S. Kuroda, W. Krömmer, K. Henkel","doi":"10.31399/asm.cp.itsc2021p0553","DOIUrl":"https://doi.org/10.31399/asm.cp.itsc2021p0553","url":null,"abstract":"The present study compares needed prerequisites for the application of cavitation resistant bronzes by applying different coating techniques, such as cold spraying, HVOF spraying, warm spraying and arc spraying. By optimization to optimum cavitation resistance, the deposited coatings can increase the service life of ship rudders significantly and even serve as repair processes for ship propellers. The given overview aims to support the selection of processes when specifying the target properties to be set with regard to cavitation protection. By using high-pressure warm spraying and cold spraying, properties similar to those of cast nickel aluminum bronze were achieved, however at relatively high costs. In contrast, coatings produced by using HVOF and arc spraying have erosion rates that are only about four respectively three times higher as compared to cast nickel aluminum bronze, while far outperforming bulk shipbuilding steel. Hence, their properties should be sufficient for acceptable service life or docking intervals for ship rudder applications. Propeller repair might demand for better coating properties as obtained by cold spraying. With respect to costs, HVOF and arc spraying in summary might represent a good compromise to reach coating properties needed in application.","PeriodicalId":70745,"journal":{"name":"热喷涂技术","volume":"1065 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90117531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical and Fatigue Properties of Tungsten Heavy Alloy Prepared by RF-Plasma 射频等离子体制备钨重合金的力学和疲劳性能

热喷涂技术 Pub Date : 2021-05-27 DOI: 10.31399/asm.cp.itsc2021p0115

O. Kovárík, J. Čech, J. Cizek, Jakub Klecka, M. Hajíček

{"title":"Mechanical and Fatigue Properties of Tungsten Heavy Alloy Prepared by RF-Plasma","authors":"O. Kovárík, J. Čech, J. Cizek, Jakub Klecka, M. Hajíček","doi":"10.31399/asm.cp.itsc2021p0115","DOIUrl":"https://doi.org/10.31399/asm.cp.itsc2021p0115","url":null,"abstract":"\u0000 Tungsten heavy alloy (WHA) of W-Ni composition was deposited from a blend of standard thermal spray powders using radio frequency inductively coupled plasma torch (RF-ICP) in a protective atmosphere. The deposit (RF WHA) contained a fully developed WHA structure; i.e.; spherical W particles embedded in a Ni-rich matrix. The bending tensile strength Rm; bending yield strength Rp;0.2; and elastic modulus of the deposit were compared with two W-Ni-Co references fabricated by powder metallurgy (PM WHA) via sintered and quenched (PMSQ); and forged and annealed (PM-FA). While the RF deposit properties are comparable with the PM-SQ reference; the PMFA exhibited higher mechanical properties. The deposit showed very limited ductility A < 3%. The fatigue crack growth rate in the deposit measured in bending (R < -1) was comparable to the PM-SQ reference material in the near-threshold region whereas the forged PM-FA had significantly better fatigue performance. In the near-threshold fatigue regime; the crack growth took place in the Ni-rich matrix. In the Paris regime; the similar fracture mode was observed; with the exception of PM-SQ; where the tungsten particles fracture contributed significantly. The static failure was exclusively trans-particle in RF WHA; while both PM WHAs failed by a mix of ductile matrix failure and trans-particle cleavage fracture. The fracture toughness of the deposit was significantly lower than the references. These early results indicate that RF-plasma spray is a suitable and efficient manufacturing method for production of WHA materials; however with limited mechanical properties in some aspects.","PeriodicalId":70745,"journal":{"name":"热喷涂技术","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91091299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Thermal Spraying of FeMnCrSi Alloys: An Overview FeMnCrSi合金热喷涂技术综述

热喷涂技术 Pub Date : 2021-05-27 DOI: 10.31399/asm.cp.itsc2021p0431

R. Váz, A. Pukasiewicz, I. Siqueira, G. B. Sucharski, A. Chicoski, Romildo Tristante

引用次数: 0

Influence of Fuel/Oxygen Ratio on Coating Properties and Cavitation Resistance of WC and Cr3C2 Cermet Coatings Deposited by HVOF 燃料氧比对HVOF沉积WC和Cr3C2金属陶瓷涂层性能和抗空化性能的影响

热喷涂技术 Pub Date : 2021-05-27 DOI: 10.31399/ASM.CP.ITSC2021P0716

A. Becker, K. Bertoul, A. Pukasiewicz, I. Siqueira, André Chicoski, F. Caliari, R. Váz, M. D. Sousa

引用次数: 0

Low Temperature Soldering of Laser Structured and Metal Coated Fiber Reinforced Plastics 激光结构和金属涂层纤维增强塑料的低温焊接

热喷涂技术 Pub Date : 2021-05-27 DOI: 10.31399/asm.cp.itsc2021p0569

K. Gustke, D. Kupke, R. Drehmann, T. Lampke, J. Gebauer, U. Klotzbach, A. Lasagni

引用次数: 0

Durability of Lubricated Icephobic Coatings under Multiple Icing/Deicing Cycles 多次结冰/除冰循环下润滑疏冰涂层的耐久性

热喷涂技术 Pub Date : 2021-05-26 DOI: 10.31399/ASM.CP.ITSC2021P0473

Valentina Donadei, H. Koivuluoto, E. Sarlin, P. Vuoristo

{"title":"Durability of Lubricated Icephobic Coatings under Multiple Icing/Deicing Cycles","authors":"Valentina Donadei, H. Koivuluoto, E. Sarlin, P. Vuoristo","doi":"10.31399/ASM.CP.ITSC2021P0473","DOIUrl":"https://doi.org/10.31399/ASM.CP.ITSC2021P0473","url":null,"abstract":"\u0000 In subzero conditions, atmospheric ice naturally accretes on surfaces in outdoor environments. This accretion can compromise the operational performance of several industrial applications, such as wind turbines, power lines, aviation, and maritime transport. To effectively prevent icing problems, the development of durable icephobic coating solutions is strongly needed. Here, the durability of lubricated icephobic coatings was studied under repeated icing/deicing cycles. Lubricated coatings were produced in one-step by flame spraying with hybrid feedstock injection. The coating icephobicity was investigated by accreting ice from supercooled microdroplets using an icing wind tunnel. The ice adhesion strength was evaluated by a centrifugal ice adhesion tester. The icing performance was investigated over four icing/deicing cycles. Surface properties of coatings, such as morphology, topography, chemical composition and wettability, were analyzed before and after the cycles. The results showed an increase in ice adhesion over the cycles, while a stable icephobic behaviour was retained for one selected coating. Moreover, consecutive ice detachment caused a surface roughness increase. This promotes the formation of mechanical interlocking with ice, thus justifying the increased ice adhesion. Finally, the coating hydrophobicity mainly decreased as a consequence of the damaged surface topography. In summary, lubricated coatings retained a good icephobic level after the cycles, thus demonstrating their potential for icephobic applications.","PeriodicalId":70745,"journal":{"name":"热喷涂技术","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72710724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2