Material Design & Processing Communications最新文献_第6页

Simulation of the behavior of lattice structured impact absorbers manufactured by additive manufacturing 用增材制造制造的晶格结构减震器的性能模拟

Material Design & Processing Communications Pub Date : 2021-05-13 DOI: 10.1002/mdp2.248

Vinícius Veloso

引用次数: 2

The evolution from surface- to bubble dynamics-dominant growth mechanisms of synchronized bubble-templated microporous copper 同步气泡模板微孔铜从表面动力学到气泡动力学的演化——显性生长机制

Material Design & Processing Communications Pub Date : 2021-05-08 DOI: 10.1002/mdp2.229

Cheng-Hui Lin, Yoonjin Won

{"title":"The evolution from surface- to bubble dynamics-dominant growth mechanisms of synchronized bubble-templated microporous copper","authors":"Cheng-Hui Lin, Yoonjin Won","doi":"10.1002/mdp2.229","DOIUrl":"10.1002/mdp2.229","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Three-dimensional porous structures have been widely utilized in numerous applications as porous structures can offer the unique combination of thermal and structural properties. While various porous structures can be fabricated through templated-electrodeposition methods by employing sacrificial structures, an approach using bubbles as sacrificial templates is suggested to provide quasi-random porous structures in a rapid and synchronized fashion.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>Despite their advantages, it has been challenging to engineer the morphological details because of the intrinsic nature of dynamic and ever-changing bubbles. In this paper, we study the growth mechanisms of bubble-templated porous copper depending on the combination of surface profiles and deposition time.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We reveal the evolution from surface- to bubble dynamics-governing growth mechanisms by quantifying quasi-random characteristics of biporous copper through their electron microscopic images and spectral density functions.</p>\u0000 </section>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"3 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/mdp2.229","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87370318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

As-built surface quality and fatigue resistance of Inconel 718 obtained by additive manufacturing 增材制造法获得Inconel 718的成品表面质量和抗疲劳性能

Material Design & Processing Communications Pub Date : 2021-05-07 DOI: 10.1002/mdp2.228

Federico Uriati, Gianni Nicoletto, Adrian H. A. Lutey

{"title":"As-built surface quality and fatigue resistance of Inconel 718 obtained by additive manufacturing","authors":"Federico Uriati, Gianni Nicoletto, Adrian H. A. Lutey","doi":"10.1002/mdp2.228","DOIUrl":"10.1002/mdp2.228","url":null,"abstract":"<p>It has been recognized that parts produced by additive manufacturing with surfaces in the “as-built” state exhibit reduced fatigue properties. On the other hand, post-process surface finishing is expensive and often unfeasible due to the complexity of parts. Therefore, surface quality parameters must be considered when designing as-built parts for structural applications. This work investigates the as-built surface topography of Inconel 718 samples manufactured via laser powder bed fusion (L-PBF) with three different production systems (SLM 280HL, EOS M290, and RENISHAW AM250) and discusses their respective experimental fatigue behavior. The aim of the investigation is to identify a link between the fatigue response of L-PBF IN718 alloy without post fabrication finishing and the surface morphology; a preliminary comparison among the main surface roughness parameters and the fatigue strength is reported and further investigations are planned to find a univocal correlation. Samples with a mean height (S<sub>a</sub>) of approximately 20 μm exhibit lower fatigue strength than those with S<sub>a</sub> of approximately 5 μm. Skewness (S<sub>sk</sub>) and kurtosis (S<sub>ku</sub>) are instead found to be discriminating parameters when comparing surfaces with relatively low surface roughness (S<sub>a</sub> 5 μm), with higher values of Ssk and Sku associated with inferior fatigue performance.</p>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"3 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/mdp2.228","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88340566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Design and optimization of 3D fast printed cellular structures 3D快速打印细胞结构的设计与优化

Material Design & Processing Communications Pub Date : 2021-04-26 DOI: 10.1002/mdp2.227

Luca Collini, Chiara Ursini, Ajeet Kumar

引用次数: 9

Synthesis and characterization of Ca(1−x)SmxF(2+x) (0 ≤ x ≤ 0.15) solid electrolytes for fluoride-ion batteries 氟离子电池用固体电解质Ca(1−x)SmxF(2+x)(0≤x≤0.15)的合成与表征

Material Design & Processing Communications Pub Date : 2021-04-20 DOI: 10.1002/mdp2.226

Palanivel Molaiyan, Raiker Witter

引用次数: 3

Photopolymerized additive manufacturing materials: Modeling of the printing process, mechanical behavior, and sensitivity analysis 光聚合增材制造材料:打印过程建模、机械行为和灵敏度分析

Material Design & Processing Communications Pub Date : 2021-04-14 DOI: 10.1002/mdp2.225

Mattia Pancrazio Cosma, Roberto Brighenti

{"title":"Photopolymerized additive manufacturing materials: Modeling of the printing process, mechanical behavior, and sensitivity analysis","authors":"Mattia Pancrazio Cosma, Roberto Brighenti","doi":"10.1002/mdp2.225","DOIUrl":"10.1002/mdp2.225","url":null,"abstract":"<p>The physical–chemical processes involved in light-induced polymerization (photopolymerization) are widely exploited in additive manufacturing (AM) technologies such as Stereolithography and Digital Light Processing. The influence of the AM process parameters on the physical properties of manufactured components has been often investigated through empirical methods based on the trial and error approach, that is, by collecting and interpreting a large amount of experimental data. However, when desired physical properties are required, accurate modeling of the liquid–solid conversion is necessary. In this work, in order to determine the properties of the resulting material according to the adopted process setup, we present a multi-physics approach to model the physical–chemical transformation taking place in photopolymerization. The role played on the final mechanical properties by the laser light intensity and by its moving speed is considered. Further, the influence of the uncertainty of the process parameters is investigated through a sensitivity analysis. The proposed approach is suitable for investigating the reliability of additively manufactured components as well as for their design according to an optimum printing strategy. From the perspective of making innovative functional materials, the proposed multi-physics model allows tuning the printing process in order to get the desired distribution of mechanical properties.</p>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"3 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/mdp2.225","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91273474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Hot deformation and dynamic recrystallization behavior of a powder metallurgy Ti-45Al-6Nb-0.3W alloy 粉末冶金Ti-45Al-6Nb-0.3W合金热变形及动态再结晶行为

Material Design & Processing Communications Pub Date : 2021-04-09 DOI: 10.1002/mdp2.224

Dongye Yang, Na Liu, Xu Gu, Pan Ma, Guoqing Zhang, Jianfei Sun

引用次数: 1

Damage analysis of Ti6Al4V lattice structures manufactured by electron beam melting process subjected to bending load 电子束熔化法制备Ti6Al4V晶格结构在弯曲载荷作用下的损伤分析

Material Design & Processing Communications Pub Date : 2021-04-09 DOI: 10.1002/mdp2.223

Costanzo Bellini, Rosario Borrelli, Vittorio Di Cocco, Stefania Franchitti, Francesco Iacoviello, Luca Sorrentino

引用次数: 10

A non-crimp fabric mechanical characterization for the production of aerospace components 航空航天部件生产用无卷曲织物的机械特性

Material Design & Processing Communications Pub Date : 2021-03-20 DOI: 10.1002/mdp2.222

Marcello A. Lepore, Luca Ferrante, Luigi Sanguigno, Angelo R. Maligno

引用次数: 1

Short review of nonplanar fused deposition modeling printing 非平面熔融沉积造型印刷技术综述

Material Design & Processing Communications Pub Date : 2021-03-19 DOI: 10.1002/mdp2.221

Georg Aarnes Nisja, Anni Cao, Chao Gao

引用次数: 11