Material Design & Processing Communications最新文献_第3页

Gear Tooth Root Bending Strength Estimation under the Assumption of Fatigue Limit Existence 疲劳极限存在假设下齿轮齿根弯曲强度估算

Material Design & Processing Communications Pub Date : 2022-06-01 DOI: 10.1155/2022/5056057

Luca Bonaiti, Carlo Gorla

引用次数: 0

Maximum Inclusion Size Evaluation and Fatigue Strength Analysis of 40Cr Structural Steel 40Cr结构钢最大夹杂物尺寸评定及疲劳强度分析

Material Design & Processing Communications Pub Date : 2022-04-30 DOI: 10.1155/2022/4566471

Yingxin Zhao, Aiguo Zhao

引用次数: 0

Reduced Coefficient of Friction of Laser Surface Hardened AISI 4130 Steel Substrates 激光表面硬化AISI 4130钢基体摩擦系数的降低

Material Design & Processing Communications Pub Date : 2022-03-17 DOI: 10.1155/2022/7541853

Matheus Rodrigues Furlani, Sheila Medeiros de Carvalho, Rafael Humberto Mota de Siqueira, Milton Sergio Fernandes de Lima

{"title":"Reduced Coefficient of Friction of Laser Surface Hardened AISI 4130 Steel Substrates","authors":"Matheus Rodrigues Furlani, Sheila Medeiros de Carvalho, Rafael Humberto Mota de Siqueira, Milton Sergio Fernandes de Lima","doi":"10.1155/2022/7541853","DOIUrl":"10.1155/2022/7541853","url":null,"abstract":"<div>\u0000 AISI 4130 steels have been used in several engineering applications, although presenting limited hardenability in conventional heat treatments. This contribution is aimed at determining the final hardness and reciprocating wear coefficient of friction (COF) after a given laser surface treatment (LST) with or without a carbon coating (C). The results indicated that the bare (B, without coating) condition produced a deeper case depth as a result of the carbon-rich plasma shielding. The observed microstructural features in the cases B and C showed martensite transformation and cementite formation; the latter is entirely in the C condition. Simple calculations using Rosenthal’s formalism indicate a high cooling rate, estimated as 32 ′280°C/s 40 μm below the irradiated surface and a heat-affected zone bounded by the austenite locus. The hardness near to the surface was higher in case C than in case B, but the overall final hardness is more pronounced when the surface is bare (B) due to plasma shielding. On the other hand, the final COF was very low in the C case (0.1) compared to the B condition (0.6).\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2022 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2022/7541853","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84049024","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

Cerium Bromide Single-Crystal X-Ray Detection and Spectral Compatibility Assessment with Various Optical Sensors 溴化铈单晶x射线检测及与各种光学传感器的光谱相容性评估

Material Design & Processing Communications Pub Date : 2022-03-16 DOI: 10.1155/2022/7008940

Dionysios Linardatos, Konstantinos Velissarakos, Ioannis Valais, George Fountos, Nektarios Kalyvas, Christos Michail

{"title":"Cerium Bromide Single-Crystal X-Ray Detection and Spectral Compatibility Assessment with Various Optical Sensors","authors":"Dionysios Linardatos, Konstantinos Velissarakos, Ioannis Valais, George Fountos, Nektarios Kalyvas, Christos Michail","doi":"10.1155/2022/7008940","DOIUrl":"10.1155/2022/7008940","url":null,"abstract":"<div>\u0000 Scintillators with high light yield (LY) values are of interest for medical imaging applications, in harsh environments, nondestructive testing (NDT), etc. CeBr3 has a LY of 60000 photons per MeV, a value much higher than other efficient materials, such as Lu3Al5O12:Ce (25000 photons/MeV); thus, its X-ray detection properties would be of interest to be examined for medical imaging applications. The X-ray detection and absorption properties of a single crystal CeBr3 sample along with the compatibility of its produced light with various optoelectronic sensors were examined. In this study, the quantum detection (QDE) and the energy absorption efficiency (EAE) of CeBr3 were calculated. The findings were compared with data for 10 × 10 × 10 mm3 Lu3Al5O12:Ce and CaF2:Eu single crystals. The measured optical spectrum produced by CeBr3 was well correlated with the spectral response of commercial optical sensors, yielding spectral matching higher than 93% for various photocathodes, e.g., GaAs (94%), E-S20 (95%), and bialkali and multialkali (95-97%), as well as with flat panel position-sensitive photomultipliers (95-99%). The energy absorption properties of CeBr3 were found higher than those of Lu3Al5O12:Ce and CaF2:Eu for X-ray tube voltages greater than 100 kVp. The quantum detection efficiency was 100% across the examined energy range. Even though CeBr3 is hygroscopic and has a mediocre 5.1 g/cm3 density, the QDE, EAE, and spectral correlation results are promising for medical imaging applications.\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2022 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2022/7008940","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81408412","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

On the Effect of the Stress Ratio on Fatigue Properties of Ti-6Al-4V Produced by Laser Powder Bed Fusion 应力比对激光粉末床熔合Ti-6Al-4V疲劳性能的影响

Material Design & Processing Communications Pub Date : 2022-02-14 DOI: 10.1155/2022/3530603

A. Cutolo, C. Elangeswaran, B. Van Hooreweder

{"title":"On the Effect of the Stress Ratio on Fatigue Properties of Ti-6Al-4V Produced by Laser Powder Bed Fusion","authors":"A. Cutolo, C. Elangeswaran, B. Van Hooreweder","doi":"10.1155/2022/3530603","DOIUrl":"10.1155/2022/3530603","url":null,"abstract":"<div>\u0000 Fatigue life estimation of Ti-6Al-4V parts produced by additive manufacturing (AM) technologies has received increasing interest during the last decade. Recent studies focused mostly on the fatigue performance of Ti-6Al-4V considering a fixed stress ratio (R), usually 0.1 or −1. However, in order to properly design structural components subjected to variable loads, the effect of different stress ratios on the fatigue performance has to be carefully investigated. This research studies the stress ratio influence on the fatigue properties of Ti-6Al-4V specimens produced by laser powder bed fusion (L-PBF). Miniaturized Ti-6Al-4V samples were tested with the step procedure for different R values. A constant life Haigh's diagram (2 · 106 cycles) was generated for L-PBF Ti-6Al-4V in as-built, electro-polished, and machined surface condition. The results present for the first time the relations between alternating and mean stresses for L-PBF Ti-6Al-4V with a fine α + β microstructure when different surface posttreatments are used to enhance the coupons’ final surface quality.\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2022 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2022/3530603","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89866925","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

Numerical Modelling of Fibre Metal Laminate Flexural Behaviour 金属纤维层压板弯曲性能的数值模拟

Material Design & Processing Communications Pub Date : 2022-02-12 DOI: 10.1155/2022/3401406

Costanzo Bellini, Vittorio Di Cocco, Francesco Iacoviello, Larisa Patricia Mocanu

{"title":"Numerical Modelling of Fibre Metal Laminate Flexural Behaviour","authors":"Costanzo Bellini, Vittorio Di Cocco, Francesco Iacoviello, Larisa Patricia Mocanu","doi":"10.1155/2022/3401406","DOIUrl":"10.1155/2022/3401406","url":null,"abstract":"<div>\u0000 The employment of hybrid materials is frequently a solution for applications demanding high structural performances. FMLs (Fibre Metal Laminates) represent a group of hybrid materials, composed of metal sheets and composite material layers, and they exhibit good mechanical properties due to the presence of both types of material. The aim of this article is to introduce an FEM numerical model suitable for the prediction of the flexural behaviour of aluminium sheets/carbon fibre composite FMLs. Particular attention was paid to the simulation of the interface between the metal and the composite material. Therefore, the model for the three-point bending loading of two types of specimens was prepared: a specimen type presented a structural adhesive at the interface, while the other one was bonded by using the resin of the composite material. Experimental tests were carried out to validate the numerical model, and both the obtained load-displacement curves and the failure characteristics were compared with the results of numerical simulation. The appropriateness of the proposed model was witnessed by the correspondence between experimental and numerical results.\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2022 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2022/3401406","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78004693","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

Variation of Poisson’s Ratio with Axial Strain for Three-Dimensional Reentrant Auxetic Structures 三维可重入型结构泊松比随轴向应变的变化

Material Design & Processing Communications Pub Date : 2022-01-31 DOI: 10.1155/2022/2623601

Dan Andrei Şerban

引用次数: 0

Failure energy and stiffness of titanium lattice specimens produced by electron beam melting process 电子束熔炼钛晶格试样的破坏能和刚度

Material Design & Processing Communications Pub Date : 2021-11-08 DOI: 10.1002/mdp2.268

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

引用次数: 9

The effects of layers orientation on impact energy evaluation of FDM printed specimens 层向对FDM打印试件冲击能评价的影响

Material Design & Processing Communications Pub Date : 2021-10-13 DOI: 10.1002/mdp2.267

Iulian-Ionut Ailinei, Sergiu Valentin Galatanu, Liviu Marsavina

引用次数: 4

A hybrid multiple-criteria decision-making approach for selecting optimal automotive brake friction composite 汽车制动摩擦复合材料优选的混合多准则决策方法

Material Design & Processing Communications Pub Date : 2021-08-26 DOI: 10.1002/mdp2.266

Tej Singh

{"title":"A hybrid multiple-criteria decision-making approach for selecting optimal automotive brake friction composite","authors":"Tej Singh","doi":"10.1002/mdp2.266","DOIUrl":"10.1002/mdp2.266","url":null,"abstract":"In this research article, a hybrid multiple-criteria decision-making approach was implemented to select the optimal brake friction formulation according to several conflicting performance-defining criteria. Friction material formulations based on different abrasives (magnesium oxide, iron oxide, zinc oxide, aluminum oxide, titanium dioxide, zirconium dioxide, and silicon dioxide) were designed, fabricated, and tested for various tribological properties. The inclusions of aluminum oxide proved best from performance and fade coefficient of friction, friction stability, friction fluctuations, and friction variability point of view but confirmed worst in terms of wear and disc temperature rise. The lowest wear and lowest rise in disc temperature were exhibited by zinc oxide added composite. The highest recovery coefficient of friction was displayed by silicon dioxide added composite. Since no single composite alternative could merely satisfy all the desired attributes. To find the optimum composite option for automotive braking application, hybrid analytic hierarchy process (AHP)–criteria importance through intercriteria correlation (CRITIC)–technique for order of preference by similarity to ideal solution (TOPSIS) was used to make the final decision. The results show that the formulation with titanium dioxide as abrasive exhibits the optimal properties.","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"3 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/mdp2.266","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78885175","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: 18