Joseph Le Cloarec , Sylvain Marinel , Claude Estournès , Cendrine Folton , Moukrane Dehmas , Charles Manière
{"title":"Sacrificial ceramics powders mix for titanium alloys complex shapes production by hybridization of SPS and 3D printing","authors":"Joseph Le Cloarec , Sylvain Marinel , Claude Estournès , Cendrine Folton , Moukrane Dehmas , Charles Manière","doi":"10.1016/j.powtec.2024.120324","DOIUrl":null,"url":null,"abstract":"<div><div>The production of complex shapes via Spark Plasma Sintering (SPS) is challenging due to intricate die configurations. The “DEFORMINT” approach combines 3D printing with SPS and sacrificial powder to fabricate fully dense shapes. Using the same powder for both the component and sacrificial part avoids distortions, but high costs of titanium alloys like Ti-6Al-4 V are limiting. This study tested a low-cost ceramic powder that mimics Ti-6Al-4 V's behavior, forming a pseudo-isostatic configuration above 1250 K. SPS experiments established a densification model and predicted distortions in a thick cone and a thin, complex turbine blade, showing good correlation with experimental results. The new sacrificial mix does not imply additional deformation and allows the fabrication of turbine blades. The only defect is a 600 μm skin effect at the contact interface.</div></div>","PeriodicalId":407,"journal":{"name":"Powder Technology","volume":"448 ","pages":"Article 120324"},"PeriodicalIF":4.5000,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Powder Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0032591024009689","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The production of complex shapes via Spark Plasma Sintering (SPS) is challenging due to intricate die configurations. The “DEFORMINT” approach combines 3D printing with SPS and sacrificial powder to fabricate fully dense shapes. Using the same powder for both the component and sacrificial part avoids distortions, but high costs of titanium alloys like Ti-6Al-4 V are limiting. This study tested a low-cost ceramic powder that mimics Ti-6Al-4 V's behavior, forming a pseudo-isostatic configuration above 1250 K. SPS experiments established a densification model and predicted distortions in a thick cone and a thin, complex turbine blade, showing good correlation with experimental results. The new sacrificial mix does not imply additional deformation and allows the fabrication of turbine blades. The only defect is a 600 μm skin effect at the contact interface.
期刊介绍：
Powder Technology is an International Journal on the Science and Technology of Wet and Dry Particulate Systems. Powder Technology publishes papers on all aspects of the formation of particles and their characterisation and on the study of systems containing particulate solids. No limitation is imposed on the size of the particles, which may range from nanometre scale, as in pigments or aerosols, to that of mined or quarried materials. The following list of topics is not intended to be comprehensive, but rather to indicate typical subjects which fall within the scope of the journal's interests:
Formation and synthesis of particles by precipitation and other methods.
Modification of particles by agglomeration, coating, comminution and attrition.
Characterisation of the size, shape, surface area, pore structure and strength of particles and agglomerates (including the origins and effects of inter particle forces).
Packing, failure, flow and permeability of assemblies of particles.
Particle-particle interactions and suspension rheology.
Handling and processing operations such as slurry flow, fluidization, pneumatic conveying.
Interactions between particles and their environment, including delivery of particulate products to the body.
Applications of particle technology in production of pharmaceuticals, chemicals, foods, pigments, structural, and functional materials and in environmental and energy related matters.
For materials-oriented contributions we are looking for articles revealing the effect of particle/powder characteristics (size, morphology and composition, in that order) on material performance or functionality and, ideally, comparison to any industrial standard.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
