IOP Conference Series: Materials Science and Engineering最新文献

Synthesis and characterization of the dealloyed hierarchical structure of AlSi10Mg-Cu alloys prepared using laser-powder bed fusion 利用激光粉末床熔融技术制备的 AlSi10Mg-Cu 合金的脱合金分层结构的合成与表征

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1310/1/012036

S Sun, C F Zhang, W Y Wang, A Godfrey

引用次数: 0

Additive manufacturing to design a new material TiB2-reinforced SUS316L using TiB2-Fe composite powder 利用 TiB2-Fe 复合粉末的增材制造技术设计新型材料 TiB2 增强 SUS316L

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1310/1/012002

R. Otsuka, T. Kikuchi, T. Yamamoto, S. Katayama

引用次数: 0

Revisiting the Theory of Spinodal Strengthening: Implications for Inhomogeneous Additive and Irradiated Structural Alloys 重新审视旋压强化理论：非均质添加剂和辐照结构合金的影响

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1310/1/012032

Riccardo Civiero, Anter El-Azab

引用次数: 0

Characterization of Si particles in additively manufactured AlSi10Mg using synchrotron transmission X-ray nanotomography 利用同步辐射透射 X 射线纳米层析技术表征加成法制造的 AlSi10Mg 中的硅颗粒

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1310/1/012027

M Defer, S Dasgupta, A J Shahani, X Xiao, D Juul Jensen, Y Zhang

引用次数: 0

Microstructure of additive manufactured materials for plasma-facing components of future fusion reactors 未来聚变反应堆面向等离子体部件的增材制造材料的微观结构

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1310/1/012004

D A H Wartacz, H Becker, S Antusch, N Ordás, C Gundlach, O V Mishin, W Pantleon

{"title":"Microstructure of additive manufactured materials for plasma-facing components of future fusion reactors","authors":"D A H Wartacz, H Becker, S Antusch, N Ordás, C Gundlach, O V Mishin, W Pantleon","doi":"10.1088/1757-899x/1310/1/012004","DOIUrl":"https://doi.org/10.1088/1757-899x/1310/1/012004","url":null,"abstract":"Two metallic materials considered for the divertor in fusion reactors are manufactured by powder bed fusion through electron beam melting: tungsten as armor of plasma-facing components and an age-hardenable CuCrZr alloy as heat sink material for the divertor. Cuboids are additively manufactured from both materials, and cross sections containing the build direction are characterized by electron backscatter diffraction. A peculiar heterogeneity is observed in the microstructure of tungsten and traced to the scanning strategy. Large columnar grains along the building direction with slight outward inclination are seen on both sides of the cross section i.e. where grains are observed in viewing planes perpendicular to the printing direction. Grains appear only slightly elongated in the center; neither their entire length nor their inclination is detected when the plane of view contains the printing direction. Many incidental twin boundaries are identified in the CuCrZr alloy; their occurrence is rationalized by the presence of an almost perfect <110> fiber texture. Additionally, X-ray computed tomography confirmed the low porosity of the CuCrZr specimen.","PeriodicalId":14483,"journal":{"name":"IOP Conference Series: Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187494","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

Additive Manufacturing of 7xxx Aluminium Alloys by Laser Powder Bed Fusion 利用激光粉末床熔融技术快速成型 7xxx 铝合金

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1310/1/012019

K Zhang, S Wenner, C D Marioara, E W Hovig, Q Du, M Onsøien, K Marthinsen

{"title":"Additive Manufacturing of 7xxx Aluminium Alloys by Laser Powder Bed Fusion","authors":"K Zhang, S Wenner, C D Marioara, E W Hovig, Q Du, M Onsøien, K Marthinsen","doi":"10.1088/1757-899x/1310/1/012019","DOIUrl":"https://doi.org/10.1088/1757-899x/1310/1/012019","url":null,"abstract":"Additive manufacturing of high strength wrought grade aluminium alloys is of great industrial and academic interests, but still difficult in practice due to the tendency of crack formations in the microstructure. This work aimed at producing dense crack-free samples of AA7075-type aluminium alloys by the laser powder bed fusion (LPBF) technology, and to investigate the microstructure. It was found that LPBF of pure AA7075 powder gave micro-cracks for all tested 25 processing parameters which covered a wide range of laser power and speed. In order to avoid the cracks, different methods were tried including high preheating temperature, introducing nano-particles, and adding Si into the alloys. Introducing ZrH<sub>2</sub> nano-particles into AA7075 by mechanical blending could successfully produce crack-free samples using LPBF. Adding 5% Si into the AA7075 powder by mechanical blending could also give crack-free samples with high relative density. It was also found that the as-built samples with preheating at 250°C had hardness as-low-as 70HV. Solutionizing at 480°C with water quenching followed by artificial aging at 120°C can bring the hardness to 140HV and 120HV, for the AA7075 variants with ZrH<sub>2</sub> and with addition of Si, respectively. Detailed characterizations revealed clear influences of both preheating temperature and alloying on the microstructure. It is concluded that preheating temperature should be carefully selected for AM of high strength precipitation hardening Al alloys.","PeriodicalId":14483,"journal":{"name":"IOP Conference Series: Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187419","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

Processability of K340 Cold Work Tool Steel by Directed Energy Deposition Technique 定向能沉积技术对 K340 冷作工具钢的可加工性

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1310/1/012021

MS Kenevisi, PA Martelli, FS Gobber, D Ugues, S Biamino

引用次数: 0

Peer Review Statement 同行评审声明

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1312/1/011002

引用次数: 0

Fluid-structure interaction modeling of dry wire drawing by coupling OpenFOAM models of lubricant film and metal wire 通过耦合润滑油膜和金属线材的 OpenFOAM 模型，建立干法拉丝的流固耦合模型

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1312/1/012008

M Vervaecke, D Fauconnier, J Degroote

{"title":"Fluid-structure interaction modeling of dry wire drawing by coupling OpenFOAM models of lubricant film and metal wire","authors":"M Vervaecke, D Fauconnier, J Degroote","doi":"10.1088/1757-899x/1312/1/012008","DOIUrl":"https://doi.org/10.1088/1757-899x/1312/1/012008","url":null,"abstract":"A steady 2D axisymmetric fluid-structure interaction model of dry wire drawing is developed to numerically investigate the interaction between the thin lubricant film and the plastically deforming steel wire. To reduce the computational cost, a layering technique is implemented in the axially moving structure. Additionally, a no-slip condition, imposed on the implemented sliding fluid-structure interaction interface, captures accurately the physics during the plastic deformation of the wire. An Arbitrary-Langrangian-Eulerian cell-centred finite volume solution methodology using pimpleFoam has been adopted to model the fluid, while a Lagrangian cell-centred finite volume solution methodology in foam-Extend executes the structural calculations. Moreover, the Python-based in-house FSI coupling code CoCoNuT performs the coupling of the flow solver and the structural solver by using the quasi- Newton IQN-ILS technique. The stresses with corresponding displacements are shown on the structure side. On the fluid side, the focus is on the behaviour of the loads of the lubricant. Additionally, the evolution of the fluid film thickness and the lubricant flow field are validated in terms of Couette and Poiseuille flow. Finally, the presented multi-physical problem shows a converged solution with a good performance of the IQN-ILS solver.","PeriodicalId":14483,"journal":{"name":"IOP Conference Series: Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187307","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

Inhomogeneous deformation in melt-pool structure of Al-Fe-Cu alloy manufactured by laser powder bed fusion 激光粉末床熔融技术制造的铝铁铜合金熔池结构中的非均质变形

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1310/1/012016

Y Cheng, Y Otani, N Takata, A Suzuki, M Kobashi, M Kato

引用次数: 0