Materials & Design最新文献

Dual-laser powder bed fusion using 450 nm diode area melting and 1064 nm galvo-scanning fiber laser sources

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-12-01 DOI: 10.1016/j.matdes.2024.113511

H. Caglar , A. Aydin , I.T. Gulenc , K. Groom , K. Mumtaz

{"title":"Dual-laser powder bed fusion using 450 nm diode area melting and 1064 nm galvo-scanning fiber laser sources","authors":"H. Caglar , A. Aydin , I.T. Gulenc , K. Groom , K. Mumtaz","doi":"10.1016/j.matdes.2024.113511","DOIUrl":"10.1016/j.matdes.2024.113511","url":null,"abstract":"<div><div>This study introduces an innovative dual laser powder bed fusion (PBF-LB/D) system, which combines two distinct laser processing methods to enhance control over microstructural outcomes. Unlike conventional PBF-LB systems that employ a single laser type, this dual-laser setup integrates a traversing Diode Area Melting (DAM) laser head with multiple 450 nm diode lasers (4 W each) and a traditional high-power (200 W) 1064 nm fiber-laser. This unique configuration allows for significantly different melt pool solidification rates within the same layer. For the first time, Ti6Al4V feedstock was processed using both laser types within a single sample. A specific scanning strategy defined separate laser processing regions, including an overlap where both lasers interacted to fuse the feedstock and bridge the two regions. The fiber-laser melted (FLM) regions experienced much higher cooling rates (∼10<sup>7</sup> °C/s) than the DAM regions (∼600 °C/s), resulting in acicular ά/α phases. In contrast, DAM regions exhibited larger grains, with parent β grain sizes approximately 13 times larger than those in the FLM zone. This dual laser system investigation not only demonstrates microstructural in-situ spatial tailoring but also highlights variations in the laser-induced heat-affected zone, surface roughness, and mechanical properties across different regions within the fabricated Ti6Al4V samples.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"248 ","pages":"Article 113511"},"PeriodicalIF":7.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A prediction model for the mechanical properties of SUS316 stainless steel ultrathin strip driven by multimodal data mixing

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-12-01 DOI: 10.1016/j.matdes.2024.113504

Zhenhua Wang , Pengzhan Wang , Yunfei Liu , Yuanming Liu , Tao Wang

{"title":"A prediction model for the mechanical properties of SUS316 stainless steel ultrathin strip driven by multimodal data mixing","authors":"Zhenhua Wang , Pengzhan Wang , Yunfei Liu , Yuanming Liu , Tao Wang","doi":"10.1016/j.matdes.2024.113504","DOIUrl":"10.1016/j.matdes.2024.113504","url":null,"abstract":"<div><div>Constructing a mapping relationship among material preparation process, microstructure, and mechanical properties is a challenge in material research and development. In this work, a deep learning framework for multimodal data fusion is constructed that couples a multi-layer perceptron (MLP) and a residual neural network (ResNet) to predict mechanical properties of SUS316 stainless steel ultrathin strips. Specifically, the MLP branch is used to extract the rolling process data features, and the ResNet with the addition of a convolutional block attention module (CBAM) is used to extract the microstructure features. Six models are constructed for comparison under the comprehensive consideration of factors such as unimodal network, the multimodal network and input form of image samples. The results show that the multimodal data model fused with the ResNet and MLP after adding the CBAM using both rolling process data and four types of microstructure image data as model inputs has the most accurate prediction results. The R<sup>2</sup>, MAPE, RMSE and MAE are 0.998, 0.727, 4.440 and 3.359, respectively. In addition, the proposed model is used for predicting yield strength and elongation, and the results show that the R<sup>2</sup> values of both models on the test set are greater than 0.980, fully confirming that the multimodal data model has high prediction accuracy and good generalizability.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"248 ","pages":"Article 113504"},"PeriodicalIF":7.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Functional metallic circuitries created by laser-activated selective electroless plating for 3D customized electronics

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-12-01 DOI: 10.1016/j.matdes.2024.113513

Hanqiang Zhang , Peiren Wang , Zhen Chen, Xiaoyi Chen, Mingxing Jiang, Junhui Yang, Ji Li

{"title":"Functional metallic circuitries created by laser-activated selective electroless plating for 3D customized electronics","authors":"Hanqiang Zhang , Peiren Wang , Zhen Chen, Xiaoyi Chen, Mingxing Jiang, Junhui Yang, Ji Li","doi":"10.1016/j.matdes.2024.113513","DOIUrl":"10.1016/j.matdes.2024.113513","url":null,"abstract":"<div><div>Laser-activated selective electroless plating (LASELP) is a promising complementary manufacturing process employed in hybrid additive manufacturing (HAM) technology for the fabrication of customized 3D electronics. However, to the best knowledge of the authors, most current LASELP technologies could only enable copper deposition on/within the polymer matrix, which largely limited the application scope of this technology. Accordingly, an advanced LASELP technology combining catalyst exchanging process is proposed to pattern diverse functional metals on the photopolymer to fabricate 3D electronics. Two kinds of catalyst systems are selected in this HAM technology: (1) Cu<sub>2</sub>(OH)PO<sub>4</sub>; (2) antimony tin oxide (ATO) and titania (TiO<sub>2</sub>). Silver and nickel-phosphorus (Ni-P) alloy are selected as the representatives of direct- and indirect-ELP metals, respectively. Silver could be directly plated on the laser-activated surface to deposit a dense and highly conductive layer, while for the Ni-P layer an inevitable catalyst exchange step is applied here to induce Pd<sup>0</sup> plating seeds on the laser-activated substrate. Finally, a variety of customized electronics, such as conformal circuit boards, smart structure with strain sensor, embedded structural thermometer, Internet of Things bottle cap, and gas tube integrated with 3D conformal NO<sub>2</sub> sensor are fabricated and fully verify this HAM technology.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"248 ","pages":"Article 113513"},"PeriodicalIF":7.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predicting the diffusion coefficients of rejuvenators into bitumens using molecular dynamics, machine learning, and force field atom types

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-12-01 DOI: 10.1016/j.matdes.2024.113502

Eli I. Assaf , Xueyan Liu , Peng Lin , Shisong Ren , Sandra Erkens

{"title":"Predicting the diffusion coefficients of rejuvenators into bitumens using molecular dynamics, machine learning, and force field atom types","authors":"Eli I. Assaf , Xueyan Liu , Peng Lin , Shisong Ren , Sandra Erkens","doi":"10.1016/j.matdes.2024.113502","DOIUrl":"10.1016/j.matdes.2024.113502","url":null,"abstract":"<div><div>This study explores the use of chemical descriptors derived from force field atom types to predict Fickian diffusion coefficients of rejuvenators in bitumen, utilizing machine learning models trained on data from 240 non-equilibrium molecular dynamics simulations. The simulations cover three bitumen types (NO, TO, FO), five aging degrees, and four temperatures (60 °C, 120 °C, 160 °C, 200 °C), capturing diffusion coefficients ranging from 0.0068e-10 m<sup>2</sup>/s in highly aged bitumens at 60 °C to 4.35e-10 m<sup>2</sup>/s in fresher samples at 200 °C. The MLM, built with 18 chemical descriptors for bitumen and rejuvenator sides, achieves an R<sup>2</sup> of 0.97, accurately predicting diffusion across varied conditions. This approach abstracts away from the need for repeated MD simulations, enabling diffusion predictions even for systems outside the original dataset. The manuscript presents three case studies to illustrate how the model can be used for the iterative design of rejuvenators by optimizing molecular structures based on critical chemical features, such as rejuvenator oxygen content, bitumen sulfur content, and molecular weights. It also demonstrates how the model offers a practical framework for understanding the diffusion and performance of rejuvenators by linking time-dependent factors—such as concentration, depth, and rejuvenation time—with the bulk properties of bitumen-rejuvenator systems, facilitating industrial applications.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"248 ","pages":"Article 113502"},"PeriodicalIF":7.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructure and kinetic evolutions of multi-variants lamella in γ-TiAl alloys

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-12-01 DOI: 10.1016/j.matdes.2024.113478

Zan Zhang , Jicheng Zhuo , Kunning Niu , Peng Sang , Shenglong Wang , Haiwei Zhang , Yongsheng Li

{"title":"Microstructure and kinetic evolutions of multi-variants lamella in γ-TiAl alloys","authors":"Zan Zhang , Jicheng Zhuo , Kunning Niu , Peng Sang , Shenglong Wang , Haiwei Zhang , Yongsheng Li","doi":"10.1016/j.matdes.2024.113478","DOIUrl":"10.1016/j.matdes.2024.113478","url":null,"abstract":"<div><div>The D0<sub>19</sub>-<span><math><msub><mi>α</mi><mn>2</mn></msub></math></span> / L1<sub>0</sub>-<span><math><mi>γ</mi></math></span> alternate lamellae microstructure in TiAl alloys brings the superior mechanical property, the lamellae with multi-variant <span><math><mi>γ</mi></math></span> phase are key characteristic of morphology-property causality. The nucleation, growth and coarsening of multi-variants <span><math><mi>γ</mi></math></span> are investigated in TiAl alloys by using the three-dimensional phase-field simulation, the <span><math><mi>γ</mi></math></span> morphology, lamellar spacing (LS) and the predicted yield strength of alloy are in agreement with the experiment. It is found that the <span><math><mi>γ</mi></math></span> variants can nucleate and grow up separately to form the single-variant lamella, or through the symbiotic nucleation and growth to form multi-variant lamella, the growth of <span><math><mi>γ</mi></math></span> lamella follows the terrace-ledge-kink mechanism. The growth rate along the longitudinal direction is distinctly larger than that of the thickness direction, resulting in the lamellar structure. A three-stage growth kinetics, nucleation, growth and coarsening of <span><math><mi>γ</mi></math></span> lamella in thickness is revealed. As Al content changes, the LS is enlarged with the reduced lamella number. The influence of the LS on the mechanical properties is evaluated by using the Hall-Petch relationship. The results give an insight for the formation and evolution mechanisms of multi-variant <span><math><mi>γ</mi></math></span> lamella, and discover the internal relations of lamellar morphology and mechanical properties of TiAl alloys.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"248 ","pages":"Article 113478"},"PeriodicalIF":7.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142746753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Toward predictable phase structures in high-entropy oxides: A strategy for screening multicomponent compositions

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-12-01 DOI: 10.1016/j.matdes.2024.113497

Yulin Li , Haixian Yan , Shiqi Wang , Xuliang Luo , Łukasz Kurpaska , Feng Fang , Jianqing Jiang , Hyoung Seop Kim , Wenyi Huo

{"title":"Toward predictable phase structures in high-entropy oxides: A strategy for screening multicomponent compositions","authors":"Yulin Li , Haixian Yan , Shiqi Wang , Xuliang Luo , Łukasz Kurpaska , Feng Fang , Jianqing Jiang , Hyoung Seop Kim , Wenyi Huo","doi":"10.1016/j.matdes.2024.113497","DOIUrl":"10.1016/j.matdes.2024.113497","url":null,"abstract":"<div><div>The recent surge in interest in high-entropy oxides (HEOs) as a novel class of ceramic materials can be attributed to the remarkable performance enhancements caused by both the complexity of their chemical composition and the simplicity of their structure. The extensive range of components presents challenges to the implementation of HEOs, rendering it difficult to predict the phase structure prior to the final synthesis. Herein, semi-empirical methods based on various parameters, including Δ<em>X</em>, <em>VEC</em>, Δ<em>S<sub>mix</sub></em>, Δ<em>H<sub>mix</sub></em> and <em>δ</em>, were utilized to determine the phase stability of rock salt, spinel, perovskite and fluorite structures. The combination of <em>δ</em> with Δ<em>X</em>, <em>VEC</em>, Δ<em>S<sub>mix</sub></em>, and Δ<em>H<sub>mix</sub></em>, in graphical form, is an effective indicator for determining the phase stability of rock salt, perovskite and fluorite structures. The spinel structure is stabilized outside the range of the other three structures. The phase formation rules were further verified with two newly designed and prepared HEOs via X-ray diffraction and high-resolution transmission electron microscopy. The HEOs show potential for functional applications, e.g., methyl orange degradation.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"248 ","pages":"Article 113497"},"PeriodicalIF":7.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Temperature-dependent mechanical behavior in a novel hierarchical B2-strengthened high entropy alloy: Microscopic deformation mechanism and yield strength prediction

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-12-01 DOI: 10.1016/j.matdes.2024.113488

Tuanwei Zhang , Renlong Xiong , Hui Chang , Jinxiong Hou , Dan Zhao , Zhong Wang , Zhouzhu Mao , Tianxiang Bai , Zhiming Jiao , Jianjun Wang , Zhihua Wang

{"title":"Temperature-dependent mechanical behavior in a novel hierarchical B2-strengthened high entropy alloy: Microscopic deformation mechanism and yield strength prediction","authors":"Tuanwei Zhang , Renlong Xiong , Hui Chang , Jinxiong Hou , Dan Zhao , Zhong Wang , Zhouzhu Mao , Tianxiang Bai , Zhiming Jiao , Jianjun Wang , Zhihua Wang","doi":"10.1016/j.matdes.2024.113488","DOIUrl":"10.1016/j.matdes.2024.113488","url":null,"abstract":"<div><div>Integration of twinning and hierarchical microstructure into a face-centered cubic (FCC) matrix is a novel research approach for advancing high-temperature alloys, enhancing strength without the need for costly heavy elements. Here, a three-level B2 phase was incorporated into a NiCoCrFe high-entropy alloy (HEA) matrix, offering a high strengthening effect at room temperature and a good resistance to moderate-temperature softening while preserving the low stacking fault energy of the FCC matrix. The resulting NiCoCrFeAl<sub>0.3</sub>Si<sub>0.3</sub> HEA exhibited stable yield strength, strain hardening, and deformation twinning over a broad temperature ranging from 77 to 973 K. By establishing a yield strength model based on the various strengthening mechanisms, the study highlighted the important role of the three-level B2 phase in the exceptional mechanical properties of the alloy across a wide temperature range. These findings present a promising avenue for the advancement of high-temperature structural materials.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"248 ","pages":"Article 113488"},"PeriodicalIF":7.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142746804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication of 17-4PH stainless steel by metal material extrusion: Effects of process parameters and heat treatment on physical properties

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-12-01 DOI: 10.1016/j.matdes.2024.113471

Ara Go , Euy Sik Jeon , Seung Ki Moon , Seong Je Park

{"title":"Fabrication of 17-4PH stainless steel by metal material extrusion: Effects of process parameters and heat treatment on physical properties","authors":"Ara Go , Euy Sik Jeon , Seung Ki Moon , Seong Je Park","doi":"10.1016/j.matdes.2024.113471","DOIUrl":"10.1016/j.matdes.2024.113471","url":null,"abstract":"<div><div>Metal material extrusion (MEX) has emerged as a promising technology for producing metal parts, offering advantages in cost-effectiveness and production efficiency. However, its adoption in high-performance applications is limited by insufficient understanding of process-property relationships. To address this gap and advance metal MEX technology, this study methodically analyzed the effects of various process variables. The raster angle setting of −45°/45° resulted in a structure with more dispersed pore formation and enhanced interlayer bonding, leading to higher tensile strength and elongation compared to those obtained at 0°/90°. When exploring sintering temperature effects at the optimal raster angle (−45°/45°), results revealed improved specimen densification at high temperatures, leading to enhanced microstructure and mechanical properties. Heat treatment on specimens fabricated under optimal conditions (raster angle: −45°/45°; sintering temperature: 1380 °C) further enhanced mechanical properties due to various microstructural changes, including grain refinement and formation of element-rich regions, acting in combination. Through step-by-step control of process variables, this research presents a method for tailoring the physical properties of 17-4PH stainless steel to suit different application fields. These findings expand the potential of metal MEX applications in industries requiring high-performance components and advance metal additive manufacturing technology by demonstrating precise property control.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"248 ","pages":"Article 113471"},"PeriodicalIF":7.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142746877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bio-inspired structural optimization of three-dimensional Voronoi structures using genetic algorithms: Inspirations from avian wing bones

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-12-01 DOI: 10.1016/j.matdes.2024.113501

Chien-Chih Lin, Cheng-Che Tung, Yung-Ya Chuang, Po-Yu Chen

{"title":"Bio-inspired structural optimization of three-dimensional Voronoi structures using genetic algorithms: Inspirations from avian wing bones","authors":"Chien-Chih Lin, Cheng-Che Tung, Yung-Ya Chuang, Po-Yu Chen","doi":"10.1016/j.matdes.2024.113501","DOIUrl":"10.1016/j.matdes.2024.113501","url":null,"abstract":"<div><div>Birds have evolved lightweight yet strong wing bones. Inside the wing bones, struts formed three-dimensional Voronoi structures, representing adaptations toward lightness. Inspired by this natural design, we proposed structural optimization method to optimize the mechanical properties of three-dimensional Voronoi structures using genetic algorithms(GA). The optimization process begins with the generation of three-dimensional porous Voronoi structures. Then, beam elements were extracted for finite element simulations as performance indicators. Finally, genes of structures with superior mechanical properties were retained and inherited through iterative evolution until optimal solutions were achieved. Samples were fabricated using additive manufacturing techniques, followed by compression testing to assess their mechanical properties. Experimental results showed that optimized Voronoi structures increased peak load capacity by 25.9% for Voronoi structures with eight Voronoi seeds. With regularity constraint, the peak load increased by 58.6% in lower regularity samples and the energy absorption increased by 39.3% in higher regularity ones. Normal vector projections revealed the principles behind the optimizations, and the Hausdorff distance measured structural similarity, validating the effectiveness of the genetic algorithm. Overall, we developed a novel method for optimizing 3D Voronoi structures using genetic algorithms, offering significant potential for designing porous, lightweight structures applicable across various fields.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"248 ","pages":"Article 113501"},"PeriodicalIF":7.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A simple way to make elastically-isotropic closed-cell plate-lattices: Effective properties of Ti-6Al-4V cubic+octet foam material

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-12-01 DOI: 10.1016/j.matdes.2024.113486

Liang Dong

{"title":"A simple way to make elastically-isotropic closed-cell plate-lattices: Effective properties of Ti-6Al-4V cubic+octet foam material","authors":"Liang Dong","doi":"10.1016/j.matdes.2024.113486","DOIUrl":"10.1016/j.matdes.2024.113486","url":null,"abstract":"<div><div>Architected metamaterials with optimal mechanical isotropy have been a long quest in the lightweight materials industry. Plate-lattices are likely to be the most promising candidates to fulfill this request. Nonetheless, unlocking full application potential of plate-lattices requires addressing many inherent drawbacks of existing additive manufacturing techniques. Hereby an alternative route is proposed to fabricate a particular plate-lattice, i.e., cubic+octet foam, based on snap-fit design concept. The proposed protocol allows for high-precision manufacturing, and is capable of scalable production with ease and offers great versatility in base material selection. Mechanical properties of plate-lattices created in this way are first numerically assessed, showing optimal stiffness and strength close to theoretical bounds for isotropic porous media, and a high degree of mechanical isotropy. Compression experiments are further conducted to exam the actual behavior of Ti-6Al-4V foam representatives, and compared with explicit simulations featuring fracture and interfacial-debonding processes, such that the dependency of foam’s performance on the degree of joint robustness is numerically quantified. Speaking of the uniqueness of this fabrication strategy, it allows for easy implementation of structural hierarchy and hybrid design; it also provides a simple way to utilize lab-scale advanced materials that are demanding even impractical to realize scalable production.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"248 ","pages":"Article 113486"},"PeriodicalIF":7.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0