International Thermal Spray Conference最新文献_第4页

Development of a Wear-Resistant Self-Fluxing Thermal Spray Coating by Solid Lubricant Incorporation 含固体润滑剂的耐磨自熔热喷涂涂层的研制

International Thermal Spray Conference Pub Date : 2023-05-22 DOI: 10.31399/asm.cp.itsc2023p0724

B. Preuß, Thomas Lindner, T. Lampke, W. Wietheger

{"title":"Development of a Wear-Resistant Self-Fluxing Thermal Spray Coating by Solid Lubricant Incorporation","authors":"B. Preuß, Thomas Lindner, T. Lampke, W. Wietheger","doi":"10.31399/asm.cp.itsc2023p0724","DOIUrl":"https://doi.org/10.31399/asm.cp.itsc2023p0724","url":null,"abstract":"\u0000 Self-fluxing alloys are an established thermal spray system in case of superimposed tribological and corrosive loads. A dense coating with high bonding strength can be formed by fusing. Such coating system represent the state of the art in valve technology. Diamond-like carbon (DLC) top coatings are used for friction-reduction. As an alternative approach, this study focuses on the possibility of incorporating solid lubricants in self-fluxing alloy coatings. This allows for higher local stress and failure tolerance as well as a reduced process chain. Molybdenum disulfide (MoS2) was studied as solid lubricant in the self-fluxing alloy NiCrBSiFe. In this preliminary study, the optimization of the MoS2 content with up to 10.0 wt% was performed in spark plasma sintered (SPS) bulk materials. The wear behavior under oscillating wear conditions was investigated. Besides the decrease in coefficient of friction (COF), the wear resistance was increased by incorporating MoS2. Furthermore, the distribution of the solid lubricants within the SPS bulk material and the influence of the production route were analyzed.","PeriodicalId":114755,"journal":{"name":"International Thermal Spray Conference","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124222272","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

Tribological Assessment of Cold Sprayed Aluminum-Quasicrystal Composite Coatings 冷喷涂铝-准晶复合涂层摩擦学性能评价

International Thermal Spray Conference Pub Date : 2023-05-22 DOI: 10.31399/asm.cp.itsc2023p0200

Ramezan Jafari, M. Vippola, H. Koivuluoto, J. Cizek, F. Lukáč, L. Cvrček, Matěj Buřil, J. Walter, J. Kiilakoski, M. Honkanen, M. Vippola

引用次数: 0

Additive Manufacturing of Multi-Material Assembly 多材料装配的增材制造

International Thermal Spray Conference Pub Date : 2023-05-22 DOI: 10.31399/asm.cp.itsc2023p0161

Amela Kusuran, G. Darut, L. Vitu, M. Planche, D. Mercs

引用次数: 0

Towards a General Cold Spray Additive Manufacturing Framework for Fabricating Complex Structural Components 面向复杂结构件制造的通用冷喷涂增材制造框架

International Thermal Spray Conference Pub Date : 2023-05-22 DOI: 10.31399/asm.cp.itsc2023p0155

Wenbo Li, Hongjian Wu, Zhoukun Shi, H. Liao, S. Costil, S. Deng

{"title":"Towards a General Cold Spray Additive Manufacturing Framework for Fabricating Complex Structural Components","authors":"Wenbo Li, Hongjian Wu, Zhoukun Shi, H. Liao, S. Costil, S. Deng","doi":"10.31399/asm.cp.itsc2023p0155","DOIUrl":"https://doi.org/10.31399/asm.cp.itsc2023p0155","url":null,"abstract":"\u0000 As an emerging additive manufacturing method, cold spray additive manufacturing (CSAM) has attracted more and more researchers’ attention due to its unique advantages. However, only a few researchers have studied the fabrication of complex structural components. Therefore, it is important to develop a general CSAM framework that is suitable for the fabrication of different shapes of workpieces. In particular, the choice for the optimal kinematic spraying parameters, the prediction of deposit evolution and the planning of spraying trajectory are the most basic and crucial. Different sub-modules are integrated in the proposed framework to solve these problems. In detail, the modeling methodology is used to obtain the optimal kinematic spraying parameters and to predict the deposit evolution in the simulation. Based on the feasible parameters, the trajectory planification methodology is used to generate the spraying trajectory for the workpiece being manufactured, especially the workpiece with complex structure. Finally, the simulation and experimental results of a fabrication for a workpiece with complex structure provide the developed system is reliable and effective. The framework developed in this paper can considered as a general tool for additive manufacturing of with complex structural workpieces in the CSAM.","PeriodicalId":114755,"journal":{"name":"International Thermal Spray Conference","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127781225","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

Application of Machine Learning for Optimization of HVOF Process Parameters 机器学习在HVOF工艺参数优化中的应用

International Thermal Spray Conference Pub Date : 2023-05-22 DOI: 10.31399/asm.cp.itsc2023p0038

D. Gerner, F. Azarmi, Martin McDonnell, Uchechi Okeke

{"title":"Application of Machine Learning for Optimization of HVOF Process Parameters","authors":"D. Gerner, F. Azarmi, Martin McDonnell, Uchechi Okeke","doi":"10.31399/asm.cp.itsc2023p0038","DOIUrl":"https://doi.org/10.31399/asm.cp.itsc2023p0038","url":null,"abstract":"\u0000 A variety of process parameters affect the properties of the deposited coatings in the High Velocity Oxygen Fuel (HVOF) spraying process. In fact, the quality of coatings can be improved without changing feedstock or deposition technology by the application of optimized spraying process parameters. In this study, a large set of data “Big Data” is used to create a variety of machine learning models for prediction of porosity content and hardness values of HVOF deposited coatings. A set of process parameters was selected as validation run and actual HVOF coating was deposited using those parameters. The porosity level and hardness were measured and compared to those predicted by models. The models differ based on the number of neurons utilized in each layer for the calculations. A model with six neurons could predict closest porosity level and the one with three was the best in prediction of hardness. The final model could be obtained by running data through both models. Through this study, a robust machine learning model for the optimization of HVOF process parameters will be developed that could be used for other coatings and thermal spraying techniques.","PeriodicalId":114755,"journal":{"name":"International Thermal Spray Conference","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125166701","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

Cold Spray Nickel-Coated Aluminum Composite Powder Part I—Study on Microstructure of Coatings 冷喷涂镀镍铝复合粉末——镀层微观组织的研究

International Thermal Spray Conference Pub Date : 2023-05-22 DOI: 10.31399/asm.cp.itsc2023p0509

Xiaoliang Lu, Z. Zheng, K. Yuan, K. Du

引用次数: 0

Forming Behaviour of Additively Manufactured Al/Ti Material Compounds Produced by Cold Spraying 冷喷涂增材制造Al/Ti复合材料的成形行为

International Thermal Spray Conference Pub Date : 2023-05-22 DOI: 10.31399/asm.cp.itsc2023p0258

R. Drehmann, M. Graf, T. Lampke, P. Colditz, B. Awiszus, A. List, F. Gärtner

{"title":"Forming Behaviour of Additively Manufactured Al/Ti Material Compounds Produced by Cold Spraying","authors":"R. Drehmann, M. Graf, T. Lampke, P. Colditz, B. Awiszus, A. List, F. Gärtner","doi":"10.31399/asm.cp.itsc2023p0258","DOIUrl":"https://doi.org/10.31399/asm.cp.itsc2023p0258","url":null,"abstract":"\u0000 Cold spraying has great potential for additive manufacturing, especially of oxidation-sensitive metals, because the material is not melted and significantly higher deposition rates can be achieved than with conventional additive manufacturing processes such as selective laser melting or direct metal deposition. Titanium is regarded as a high-performance engineering material due to its unique combination of properties, including good corrosion resistance, biocompatibility and high strength at comparatively low density. However, due to its high price, it appears reasonable for many applications to use material compounds in which titanium is only used on the surface of the workpiece, while less expensive materials such as aluminum are used for the remaining volume. In the present work, cold sprayed pure titanium coatings were deposited on Al substrates and then formed to defined 3-dimensional final contours by die forging and rotary swaging. Different porosities were selectively set in order to evaluate their influence on the coating adhesion and cohesion in the forming process. Pre-consolidation of the coatings and the use of Al/Ti interlayers proved to be promising strategies.","PeriodicalId":114755,"journal":{"name":"International Thermal Spray Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122073030","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

Property Characterization of Al1050 Bulk Cold Spray Deposits and Numerical Study of Thermomechanical Effects during the Additive Growth Al1050大块冷喷涂层的性能表征及添加剂生长过程中热力学效应的数值研究

International Thermal Spray Conference Pub Date : 2023-05-22 DOI: 10.31399/asm.cp.itsc2023p0167

M. Sokore, S. Deng, H. Liao, R. Raoelison, Shuohong Gao

引用次数: 0

Investigating the Effect of Solid Lubricants Addition on Friction and Wear Behaviour of Thermally Sprayed Coatings 研究固体润滑剂添加量对热喷涂涂层摩擦磨损性能的影响

International Thermal Spray Conference Pub Date : 2023-05-22 DOI: 10.31399/asm.cp.itsc2023p0392

J. Patrikalos, P., D. Skaltsas, C. Papadopoulos, Ch. I. S, D. Skaltsas, C. Sarafoglou

引用次数: 0

Methods for 3D Volume Building in Cold Spray Additive Manufacturing 冷喷涂增材制造中三维体积构建方法

International Thermal Spray Conference Pub Date : 2023-05-22 DOI: 10.31399/asm.cp.itsc2023p0193

Hongjian Wu, A. List, F. Gärtner, T. Klassen, S. Deng

{"title":"Methods for 3D Volume Building in Cold Spray Additive Manufacturing","authors":"Hongjian Wu, A. List, F. Gärtner, T. Klassen, S. Deng","doi":"10.31399/asm.cp.itsc2023p0193","DOIUrl":"https://doi.org/10.31399/asm.cp.itsc2023p0193","url":null,"abstract":"\u0000 Cold spraying (CS) has proved as an attractive and rapidly developing solid-state material deposition process that allows for fast formation of high quality, large 3D volume objects. Low risks of undesirable heat effects lead to increased interest in CS-based rapidly additive manufacturing (AM). However, by continuous powder spraying and high-pressure gas operation, cold spray additive manufacturing (CSAM) in terms of shape building is rather sensitive to operating parameters and imposes high requirements on the control of process conditions and locally needed kinematics. Every step of the manufacturing process therefore needs to be well conceived and planned, especially with regard to the toolpath planning and implementation. This is not only essential to meet basic performance requirements, but also needed to realize the desired accuracy. In order to tackle above needs, the present study presents a new toolpath planning method for 3D volume build-up to improve manufacturing accuracy and flexibility by cold spray additive manufacturing. Applied benchmarking tests prove acceptable shape accuracy and demonstrate that the current method can enhance the capabilities of CSAM for nearnet shape construction. This implies that careful planning and manufacturing strategies should enable to overcome the challenges associated with CSAM.","PeriodicalId":114755,"journal":{"name":"International Thermal Spray Conference","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131868515","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: 1