Materials Science in Additive Manufacturing最新文献

Fatigue behavior of additively manufactured Ti3Al2V alloy 增材制造Ti3Al2V合金的疲劳性能

Materials Science in Additive Manufacturing Pub Date : 2023-09-27 DOI: 10.36922/msam.1705

Amit Bandyopadhyay, Sushant Ciliveri, Stefano Guariento, Nathan Zuckschwerdt, William W. Hogg

{"title":"Fatigue behavior of additively manufactured Ti3Al2V alloy","authors":"Amit Bandyopadhyay, Sushant Ciliveri, Stefano Guariento, Nathan Zuckschwerdt, William W. Hogg","doi":"10.36922/msam.1705","DOIUrl":"https://doi.org/10.36922/msam.1705","url":null,"abstract":"In this study, we measured the tensile, compression, and fatigue behavior of additively manufactured Ti3Al2V as a function of build orientation. Ti3Al2V alloy was prepared by mixing commercially pure titanium and Ti6Al4V in 1:1 wt. ratio. Laser powder bed fusion-based additive manufacturing technique was used to fabricate the samples. Tensile tests resulted in an ultimate strength of 989 &plusmn; 8 MPa for Ti3Al2V. Ti6Al4V 90&deg; orientation samples showed a compressive yield strength of 1178 &plusmn; 33 MPa and that for Ti3Al2V 90&deg; orientation samples were 968 &plusmn; 24 MPa. By varying the build orientation to account for anisotropy, Ti32 45&deg; and Ti32 0&deg; samples displayed almost similar compressive yield strength values of 1071 &plusmn; 16 and 1051 &plusmn; 18 MPa, respectively, which were higher than that of Ti32 90&deg; sample. Fatigue loading revealed an endurance limit (10 million cycles) of 250 MPa for Ti6Al4V and of 219 MPa for Ti3Al2V built at 90&deg; orientation. The effect of the build orientation was significant under fatigue loading; Ti3Al2V built at 45&deg; and 0&deg; orientations displayed endurance limits of 387.5 MPa and 512 MPa, respectively; more than two-fold increment in endurance limit was observed. In conclusion, the superior attributes of Ti3Al2V alloy over Ti6Al4V alloy, as demonstrated in this study, justify its potential in load-bearing applications, particularly for use in orthopedic devices.","PeriodicalId":473329,"journal":{"name":"Materials Science in Additive Manufacturing","volume":"101-102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135536677","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

Triply periodic minimal surfaces lattice structures: Functional graded and hybrid designs for engineering applications 三周期最小表面晶格结构:工程应用的功能分级和混合设计

Materials Science in Additive Manufacturing Pub Date : 2023-09-27 DOI: 10.36922/msam.1753

Tian Lan, Chenxi Peng, Kate Fox, Truong Do, Phuong Tran

{"title":"Triply periodic minimal surfaces lattice structures: Functional graded and hybrid designs for engineering applications","authors":"Tian Lan, Chenxi Peng, Kate Fox, Truong Do, Phuong Tran","doi":"10.36922/msam.1753","DOIUrl":"https://doi.org/10.36922/msam.1753","url":null,"abstract":"In this work, we propose the strategies for designing radial graded sheet-based gyroid lattice and the approach to hybridizing solid-network-based gyroid lattice and primitive lattice. The elastic property of triply periodic minimal surfaces (TPMS) sheet-based gyroid lattice structures was explored. We also conducted numerical analysis to investigate the effect of functionally graded sheet-based gyroid lattices on the implant application, and explored the elastic properties of the uniform gyroid lattice parametrically with different relative densities based on the representative volume element model. Analytical equations based on the Gibson-Ashby model were generated to predict the elastic properties. Compressive tests on the samples fabricated by the Stratasys J750 were conducted to validate the feasibility of applying hybridization of different types of lattices. A comparison between radial hybrid primitive-gyroid and gyroid-primitive lattices revealed that the compressive behavior of gyroid-primitive was strengthened. We also found that the gyroid-primitive lattice could achieve auxetic compressive behavior. In conclusion, the numerical analysis illustrates that the application of the functional graded gyroid lattices can relieve the stress shielding effect as well as protects the bone from damage. The hybridization of different lattices can not only strengthen the mechanical properties of TPMS structures but also create a counter-intuitive deformation response.","PeriodicalId":473329,"journal":{"name":"Materials Science in Additive Manufacturing","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135579291","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

Additive manufacturing of continuous carbon fiber-reinforced silicon carbide composite by fused filament fabrication and precursor infiltration pyrolysis 熔融长丝和前驱体渗透热解增材制造连续碳纤维增强碳化硅复合材料

Materials Science in Additive Manufacturing Pub Date : 2023-09-27 DOI: 10.36922/msam.1604

Xiang Nie, Siqi Wu, Lei Yang, Chunze Yan, Yusheng Shi

{"title":"Additive manufacturing of continuous carbon fiber-reinforced silicon carbide composite by fused filament fabrication and precursor infiltration pyrolysis","authors":"Xiang Nie, Siqi Wu, Lei Yang, Chunze Yan, Yusheng Shi","doi":"10.36922/msam.1604","DOIUrl":"https://doi.org/10.36922/msam.1604","url":null,"abstract":"Continuous fiber reinforced silicon carbide composites (Cf/SiC) are known for their advantages such as high strength, high modulus, high thermal conductivity, and low density. In this paper, we propose an integrated Cf/SiC preparation and processing process. The continuous carbon fiber-reinforced resin matrix composite green parts were processed by fused filament fabrication, and then ceramicized by precursor infiltration pyrolysis process. The processing parameters of the green parts, the performance of the green-part specimens, the phase evolution in the post treatment, and the performance of Cf/SiC samples were investigated. The infill line distance (ILD) had a huge influence on the mechanical properties of green parts and Cf/SiC. The bending strength of the green parts and the Cf/SiC specimens increased with the decrease in ILD. The maximum bending strength of 169.48 MPa and 155.83 MPa was achieved for the carbon fiber/polyethylene terephthalate glycol (Cf/PETG) and polylactic acid (Cf/PLA) green parts, respectively. The highest bending strength of 47.73 MPa of the Cf/SiC material was obtained with the Cf/PLA green parts, while the bending strength of 93.79 MPa was obtained for the Cf/SiC with Cf/PETG green parts. The increase in mechanical properties was believed to result from the pyrolyzed carbon brought by PETG and the increase of the equivalent fiber density within the single layer after a larger nozzle size was used.","PeriodicalId":473329,"journal":{"name":"Materials Science in Additive Manufacturing","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135579566","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

Modeling and experimental investigation of fiber orientation in cast and 3D-printed cementitious composites 铸造和3d打印胶凝复合材料中纤维取向的建模和实验研究

Materials Science in Additive Manufacturing Pub Date : 2023-09-22 DOI: 10.36922/msam.1603

Mingyang Li, Dong Zhang, Teck Neng Wong, Ming Jen Tan, Yiwei Weng

{"title":" Modeling and experimental investigation of fiber orientation in cast and 3D-printed cementitious composites","authors":"Mingyang Li, Dong Zhang, Teck Neng Wong, Ming Jen Tan, Yiwei Weng","doi":"10.36922/msam.1603","DOIUrl":"https://doi.org/10.36922/msam.1603","url":null,"abstract":"Fiber orientation is process-related and has significant impacts on material performance. However, existing studies only consider the impact of individual factors on the fiber orientation, either boundary impacts or flow field impacts. This work aims to study fiber orientation by considering the combined impact of these two factors. Analytical models were first constructed, which revealed that when the flow of material is negligible, fiber orientation is impacted by the boundary conditions. When the flow field is non-negligible, fiber orientation is affected by the direction of flow streamlines. Specimens were then prepared using fluorescence image processing and &mu;-computed tomography scanning for fiber orientation analysis. The results indicate that fiber orientation could be controlled by varying boundary constraints and flow fields. Mechanical results reveal that when the designed condition achieves directional-orientated fibers, the mechanical property of specimens could be enhanced with the applied stress direction being the same as the fiber orientation. This work provides a novel insight to tailor fiber-reinforced cementitious material properties by designing the boundary constraints and flow fields in the cast and printing processes.","PeriodicalId":473329,"journal":{"name":"Materials Science in Additive Manufacturing","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136098791","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

A review of advances in additive manufacturing and the integration of high-performance polymers, alloys, and their composites 增材制造和高性能聚合物、合金及其复合材料集成的进展综述

Materials Science in Additive Manufacturing Pub Date : 2023-09-19 DOI: 10.36922/msam.1587

Yanting Liu, Swee Leong Sing

引用次数: 2