热喷涂技术 Pub Date : 2021-06-15 DOI: 10.31399/ASM.CP.ITSC2021P0561

G. Garcin, F. Delloro, M. Jeandin, J. Hochepied, C. Grente, E. Bidault, S. Boutet, M. Jousset, E. Bonay, G. Rivaud, A. Denoirjean, J. Abry, G. Bouvard, T. Malhomme, V. Fridrici

{"title":"Development of Metal-Ceramic-Lubricant Composite Coatings Obtained by Cold Spray for Tribological Applications in the Automotive Industry","authors":"G. Garcin, F. Delloro, M. Jeandin, J. Hochepied, C. Grente, E. Bidault, S. Boutet, M. Jousset, E. Bonay, G. Rivaud, A. Denoirjean, J. Abry, G. Bouvard, T. Malhomme, V. Fridrici","doi":"10.31399/ASM.CP.ITSC2021P0561","DOIUrl":"https://doi.org/10.31399/ASM.CP.ITSC2021P0561","url":null,"abstract":"\u0000 One of the main levers to reduce CO2 emissions in cars and trucks is mass and friction reduction, which is often achieved through the use of special coatings. The aim of the present work was to develop metal-ceramic-lubricant composite coatings with the best combination of wear, seizure, fatigue, and thermal resistance. Metal-based coatings incorporating hard particles and solid lubricants were cold sprayed onto steel substrates and the relationship between coating microstructure and tribology was studied. To meet the demanding tribological requirements of heavily loaded engines, the interfaces between the different components were optimized by selecting appropriate feedstock powders and assessing a wide range of process parameters. Alumina-reinforced bronze composite coatings were made from powders with different morphologies. Aggregated ceramic powders were found to be more beneficial in terms of wear than massive powders, and graphite was found to be effective for reducing seizure.","PeriodicalId":70745,"journal":{"name":"热喷涂技术","volume":"83 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83731938","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

Adhesion Strength Improvement by Laser Surface Texturing of Metallic Repair Coatings Deposited by Cold Spraying 激光表面织构提高冷喷涂金属修复涂层的附着力

热喷涂技术 Pub Date : 2021-06-15 DOI: 10.31399/asm.cp.itsc2021p0241

R. Kromer, R. Raoelison, Y. Danlos, C. Verdy, S. Costil, H. Liao

{"title":"Adhesion Strength Improvement by Laser Surface Texturing of Metallic Repair Coatings Deposited by Cold Spraying","authors":"R. Kromer, R. Raoelison, Y. Danlos, C. Verdy, S. Costil, H. Liao","doi":"10.31399/asm.cp.itsc2021p0241","DOIUrl":"https://doi.org/10.31399/asm.cp.itsc2021p0241","url":null,"abstract":"\u0000 Cold spray process was chosen as a good candidate for dimensional restoration and protection of components. Commercially pure aluminum; aluminum-alloy or titanium were recommended for different applications. This paper investigates laser surface texturing association to enhance durability of sprayed coatings. Laser is easy automated; localized and reliable process. It was applied for prior-surface treatment. Textured surfaces were produced and compared to conventional treatments; such as grit-blasting; in terms of deposition efficiency and adhesion bond strength. Patterns promoted direct particle embedment. Particle-substrate interface exhibited significant temperature rate and strain in cavities. Intimate contacts and particle compressive states were assumed responsible for improvement. The particle deformation and bonding behaviors were evaluated and discussed for the different configurations. Thus; window of deposition was increased with laser surface texturing. Anchoring mechanisms increased two fold the adhesion strength compared to conventional pre-treatments. In one case; the interface was stronger than the coating cohesive strength.","PeriodicalId":70745,"journal":{"name":"热喷涂技术","volume":"91 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90661710","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

The Cavitation Resistance of WC-10Co4Cr and WC-20CrC-7Ni HVAF Coatings WC-10Co4Cr和WC-20CrC-7Ni HVAF涂层的抗空化性能

热喷涂技术 Pub Date : 2021-06-15 DOI: 10.31399/asm.cp.itsc2021p0722

S. Korobov, N. V. Lezhnin, A. Makarov, H. Alwan, V. I. Shumyakov, N. Soboleva, M. Antonov, M. S. Deviatiarov

引用次数: 1

Electrical Properties of Half Heusler Coatings Depending on Spray Process 喷涂工艺对半赫斯勒涂料电性能的影响

热喷涂技术 Pub Date : 2021-06-15 DOI: 10.31399/ASM.CP.ITSC2021P0422

G. Darut, Axel Portebois, L. Vitu, M. Planche, H. Liao, Shantanu Misra, C. Candolfi, B. Lenoir

引用次数: 0

Strain Gradient Plasticity Modeling to Evaluate Material Plastic Deformation Behavior During Cold Gas Dynamic Spray Process 基于应变梯度塑性建模的冷气体动态喷涂过程中材料塑性变形行为评估

热喷涂技术 Pub Date : 2021-06-15 DOI: 10.31399/asm.cp.itsc2021p0256

D. Dzhurinskiy, S. Dautov, P. Shornikov, I. Akhatov

{"title":"Strain Gradient Plasticity Modeling to Evaluate Material Plastic Deformation Behavior During Cold Gas Dynamic Spray Process","authors":"D. Dzhurinskiy, S. Dautov, P. Shornikov, I. Akhatov","doi":"10.31399/asm.cp.itsc2021p0256","DOIUrl":"https://doi.org/10.31399/asm.cp.itsc2021p0256","url":null,"abstract":"\u0000 Severe plastic deformation (SPD) is the main feature of the Cold Spray (CS) process; which might result in producing metal grain refinement under extensive hydrostatic pressure and high strain rate loading conditions. In this study; an anisotropic strain gradient plasticity model (SGP) is presented to predict materials behavior in CS process. The enhanced dislocation densities produced throughout particle deformation affect coating material properties and modify their thermodynamic characteristics and kinetic of resistance to plastic deformations. This study also demonstrates that the SGP model can describe the experimentally observed trends and account for homogenization of the accumulated strains under dynamic recrystallization conditions. The evolution of statistically stored dislocation density through the characteristic material length scale parameter is in good agreement with experimental results and data reported by other research groups. The proposed SGP modeling is suggested as an express method to evaluate the advanced coating and additively manufactured materials; and powder feedstock used in thermal spray and 3D manufacturing applications.","PeriodicalId":70745,"journal":{"name":"热喷涂技术","volume":"78 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81947451","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

Hybrid Plasma Spraying —Discovering the Effects of Deposition Parameters 混合等离子喷涂——发现沉积参数的影响

热喷涂技术 Pub Date : 2021-06-15 DOI: 10.31399/asm.cp.itsc2021p0493

T. Tesar, R. Mušálek, J. Medricky, J. Cizek, F. Lukáč, T. Chráska, J. Dudik

引用次数: 0

Novel Strategy for Developing Bulk-Like Dense Metallic Coatings by Plasma Spraying 等离子喷涂制备块状致密金属涂层的新策略

热喷涂技术 Pub Date : 2021-06-15 DOI: 10.31399/ASM.CP.ITSC2021P0410

Chang-jiu Li, Xin-Yuan Dong, Li Zhang, Yong Zhu, Zhengdao Zhou, Xiao-Tao Luo, Cheng-Xin Li

引用次数: 0

Effect of Heat Treatment on Residual Stress of Cold Sprayed Nickel-Base Superalloys 热处理对冷喷涂镍基高温合金残余应力的影响

热喷涂技术 Pub Date : 2021-06-15 DOI: 10.31399/asm.cp.itsc2021p0197

Deepika Shrestha, F. Azarmi, X. Tangpong

{"title":"Effect of Heat Treatment on Residual Stress of Cold Sprayed Nickel-Base Superalloys","authors":"Deepika Shrestha, F. Azarmi, X. Tangpong","doi":"10.31399/asm.cp.itsc2021p0197","DOIUrl":"https://doi.org/10.31399/asm.cp.itsc2021p0197","url":null,"abstract":"\u0000 Residual stress can be developed in most thermally sprayed coatings due to the momentum of molten particles during impact; and heat transfer during solidification of the splats. Another reason for residual stress built-up in thermally sprayed coatings is due to splat curl-up during solidification and the differences in thermal expansion coefficients between the coating and the substrate. However; in the cold spraying process; it is believed that the main reason for residual stress formation is plastic deformation during impact and flattening of solid particles. Residual stresses can drastically influence coating quality and reduce its service time. In this study; residual stress is measured for two well-known nickel based super alloys (Inconel 625 and Inconel 718) deposited on 7074 aluminum alloy substrates by the cold spraying technique. Residual stress in Inconel 625 was found to be highly tensile on the surface and compressive on the subsurfaces. After heat treatment the residual stress was relieved and was compressive in nature. Whereas for Inconel 718; residual stress was compressive on the surface and tensile on the subsurfaces in the as-sprayed condition. After heat treatment; the residual stress was compressive with increased magnitude. The heat treatment at 800°C made the residual stress more compressive. The porosities of both Inconel 625 and Inconel 718 were reduced after heat treatment.","PeriodicalId":70745,"journal":{"name":"热喷涂技术","volume":"121 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73581876","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

Tribological and Corrosion Behavior of HVOF Sprayed Cr3C2-NiCr with Nickel Cladded Graphite and Hexagonal Boron Nitride 包镍石墨和六方氮化硼HVOF喷涂Cr3C2-NiCr的摩擦学和腐蚀行为

热喷涂技术 Pub Date : 2021-06-15 DOI: 10.31399/ASM.CP.ITSC2021P0732

M. Oechsner, T. Engler, H. Scheerer, Y. Joung, K. Bobzin, W. Wietheger, M. Knoch, M. Schulz

引用次数: 1

Laser Assisted Cold Spray for Improved Adhesion of Soft Materials to Hard Substrates—Case Study for Copper Coatings on Steel 激光辅助冷喷涂提高软材料与硬基板的附着力——以铜涂层在钢上的应用为例

热喷涂技术 Pub Date : 2021-06-15 DOI: 10.31399/asm.cp.itsc2021p0596

J. Legoux, B. Guerreiro, D. Poirier, J. Giallonardo

{"title":"Laser Assisted Cold Spray for Improved Adhesion of Soft Materials to Hard Substrates—Case Study for Copper Coatings on Steel","authors":"J. Legoux, B. Guerreiro, D. Poirier, J. Giallonardo","doi":"10.31399/asm.cp.itsc2021p0596","DOIUrl":"https://doi.org/10.31399/asm.cp.itsc2021p0596","url":null,"abstract":"\u0000 In cold spray, high adhesion of soft materials on hard substrates is commonly achieved by using helium as the propelling gas. This is the case of copper coatings on steel where adhesion may reach values as high as 60 to 80 MPa (glue failure), however, helium is a limited, expensive natural resource, and the use of more abundant nitrogen gas is preferred in an industrial setting. Unfortunately, when using nitrogen gas, little to no adhesion is obtained. In order to eliminate the use of helium gas we studied how laser assisted cold spray could lead to an improvement in adhesion of nitrogen sprayed copper coatings. In this work, several laser parameters (e.g., power and spot size) and process parameters (traverse speed, relative position laser spot vs. gas jet) were varied at a coupon level. Upon optimization, an equivalent adhesion to the coatings prepared with helium was obtained. Furthermore, the cross section of the coatings showed that the copper particles penetrated the steel, similar to what is observed when using helium gas. Optimization of these parameters for application to large diameter (~559 mm) cylinders was also performed. A discussion on the mechanisms which contribute to achieving high adhesion considering the use of helium versus laser assistance is provided.","PeriodicalId":70745,"journal":{"name":"热喷涂技术","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78259334","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

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