Journal of Material Sciences & Engineering最新文献_第3页

Study on the Mechanical Characterization of Composite Materials forAutomotive Wheel Application 汽车车轮用复合材料力学性能研究

Journal of Material Sciences & Engineering Pub Date : 2019-01-01 DOI: 10.37421/JME.2019.8.548

Eneyw Gardie, Negash Alemu

{"title":"Study on the Mechanical Characterization of Composite Materials forAutomotive Wheel Application","authors":"Eneyw Gardie, Negash Alemu","doi":"10.37421/JME.2019.8.548","DOIUrl":"https://doi.org/10.37421/JME.2019.8.548","url":null,"abstract":"Nowadays the development of using fiber-reinforced polymer composites in the field of aviation, defense, automotive, and marine industry is growing due to their lower density as compared with conventional materials. In the automotive industry, the requirements of reduction of weight and fuel consumption have become an essential study without losing any mechanical strength. Fiber-reinforced polymer composite materials are an alternative automotive wheel materials having outstanding mechanical properties via lower density, high fatigue resistance, flexibility of design, stability of dimension, better resistance of corrosion, the resistance of high temperature, high mechanical strength and light in weight, etc. To determine the mechanical properties of fiber-reinforced carbon epoxy composite material using quasi-isotropic orientation having [45/0/0/0/0/-45/90/90/90/90/-45/0/0/0/0/45]s stacking sequences with a total number of 32 plies was prepared and mechanical characterization was performed. To quantify this analysis tensile and compression tests were performed by fabricating the samples through hand layup as per ASTM standards. From the result, fiberreinforced carbon epoxy composite material has excellent tensile strength in the longitudinal direction and moderate compressive strength in the transversal direction.","PeriodicalId":16326,"journal":{"name":"Journal of Material Sciences & Engineering","volume":"47 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86010369","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: 2

Microstructural and Mechanical Properties of Spark Plasma Sintering of Ni22Cr11Al Powders Synthesized by Mechanical Alloying for Thermal Barrier Coating 热障涂层用机械合金化Ni22Cr11Al粉末的火花等离子烧结组织和力学性能

Journal of Material Sciences & Engineering Pub Date : 2018-09-29 DOI: 10.4172/2169-0022.1000485

F. Omoniyi, P. Olubambi, R. Sadiku

{"title":"Microstructural and Mechanical Properties of Spark Plasma Sintering of Ni22Cr11Al Powders Synthesized by Mechanical Alloying for Thermal Barrier Coating","authors":"F. Omoniyi, P. Olubambi, R. Sadiku","doi":"10.4172/2169-0022.1000485","DOIUrl":"https://doi.org/10.4172/2169-0022.1000485","url":null,"abstract":"Thermal barrier coatings (TBCs) systems are used to protect hot sections of industrial gas turbine blades against high temperature corrosion and oxidation. Currently, MCrAlY powders up to 100 μm in diameter are used in the production of thermal barrier coatings by industrial gas turbine component manufacturers. It has been found that nanocrystalline MCrAlY layer provide better oxidation behaviour than currently used microstructure MCrAlY layer at elevated temperature. In the present study, nanocrystalline NI22Cr11Al composites was synthesized using high energy planetary ball milling for different periods of time, and the dense NI22Cr11Al alloy was fabricated by using spark plasma sintering process at different temperatures ranging from 1000°C to 1200°C. The resultant powder particles, bulk and dense samples were characterised using scanning electron microscope (SEM), X-ray diffraction analysis (XRD) and Micro Vickers hardness test. The results indicated that mechanical milling process produce morphology changes, particle size increase, crystallite size decrease down to nanometric level (40 nm) and formation of Nano dispersions in the process. *Corresponding author: Omoniyi FIS, College of Science, Engineering and Food Science, University College Cork Ireland, Tel: +353899801944; E-mail: folorunsoomoniyi@gmail.com Received September 07, 2018; Accepted September 19, 2018; Published September 29, 2018 Citation: Omoniyi FIS, Olubambi PA, Sadiku RE (2018) Microstructural and Mechanical Properties of Spark Plasma Sintering of Ni22Cr11Al Powders Synthesized by Mechanical Alloying for Thermal Barrier Coating. J Material Sci Eng 7: 485. doi: 10.4172/2169-0022.1000485 Copyright: © 2018 Omoniyi FIS, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.","PeriodicalId":16326,"journal":{"name":"Journal of Material Sciences & Engineering","volume":"18 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2018-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87645195","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

The Effect of Protective Coatings using L-5A Type toward Corrosion Rate on Mild Steel Grade a Material (Case Study in Indonesia Warship) L-5A型防护涂层对低碳钢a级材料腐蚀速率的影响(以印尼军舰为例)

Journal of Material Sciences & Engineering Pub Date : 2018-08-08 DOI: 10.4172/2169-0022.1000470

Arif Ma, B. Agung, Suharyo Os, P. Pratisna

引用次数: 2

Unlocking the Potential in Aluminum can Revolutionize the World 释放铝的潜力可以彻底改变世界

Journal of Material Sciences & Engineering Pub Date : 2018-07-30 DOI: 10.4172/2169-0022.1000468

J. Moré, Steve Lyon

引用次数: 0

Analysis of Strengthening Mechanisms in Nano-ODS Steel Depending on Preparation Route 纳米ods钢不同制备工艺的强化机理分析

Journal of Material Sciences & Engineering Pub Date : 2018-06-27 DOI: 10.4172/2169-0022.1000474

Alessandra Fava, R. Montanari, M. Richetta, C. Testani, A. Varone

{"title":"Analysis of Strengthening Mechanisms in Nano-ODS Steel Depending on Preparation Route","authors":"Alessandra Fava, R. Montanari, M. Richetta, C. Testani, A. Varone","doi":"10.4172/2169-0022.1000474","DOIUrl":"https://doi.org/10.4172/2169-0022.1000474","url":null,"abstract":"Oxide dispersion strengthened (ODS) steels are promising materials for high temperature applications, in particular in fission and fusion nuclear reactors. In comparison to common reduced activation ferritic/martensitic steels they exhibit better resistance to neutron irradiation and creep owing to an uniform dispersion of nano-oxides particles (~5 nm) and a very fine grain structure (~500 nm). \u0000ODS steels are commonly prepared by high-energy mechanical alloying (HEMA) of a mixture of steel powder and Y2O3 particles followed by a consolidation stage consisting of hot extrusion (HE) or hot isostatic pressing (HIP). The samples are then submitted to annealing around 1100°C for 1-2 hours. Recently, the present authors proposed a novel method based on low-energy mechanical alloying (LEMA). \u0000In general ODS microstructure is quite complex and several mechanisms contribute to the mechanical strengthening with different effects depending on the temperature. The present work analyses the role played by each single mechanism at increasing temperature by considering the specific microstructural features. \u0000ODS steels prepared through different routes and process parameters display different grain size distribution and homogeneity of particles dispersion, factors which strongly affect the mechanical properties. \u0000Yield stress values measured in tensile tests performed at increasing temperature up to 700°C, either taken from literature or achieved by authors, have been examined and the following strengthening mechanisms have been considered to fit the experimental data: (i) solid solution; (ii) Bailey-Hirsch; (iii) Hall-Petch; (iv) Orowan; (v) Coble creep and (vi) Arzt-Rősler-Wilkinson. The analyses evidence advantages and drawbacks of different preparation routes and suggest some criteria for further improving the mechanical properties of these materials.","PeriodicalId":16326,"journal":{"name":"Journal of Material Sciences & Engineering","volume":"103 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2018-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77510393","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: 6

Modern Wound Dressing Using Polymers/Biopolymers 使用聚合物/生物聚合物的现代伤口敷料

Journal of Material Sciences & Engineering Pub Date : 2018-06-04 DOI: 10.4172/2169-0022.1000454

Michelle Xiao Liu, Guomei Jia

引用次数: 15

Thickness Dependent Surface Topography, Magnetic Properties and Magnetic Domain Structure of Amorphous FeTaC Thin Films 非晶FeTaC薄膜的厚度依赖性表面形貌、磁性能和磁畴结构

Journal of Material Sciences & Engineering Pub Date : 2018-06-02 DOI: 10.4172/2169-0022.1000455

C. Das, J. Das, Thiruvengadam Vijayabaskaran, S. Bedanta, A. Talapatra, J. Mohanty, P. Alagarsamy

{"title":"Thickness Dependent Surface Topography, Magnetic Properties and Magnetic Domain Structure of Amorphous FeTaC Thin Films","authors":"C. Das, J. Das, Thiruvengadam Vijayabaskaran, S. Bedanta, A. Talapatra, J. Mohanty, P. Alagarsamy","doi":"10.4172/2169-0022.1000455","DOIUrl":"https://doi.org/10.4172/2169-0022.1000455","url":null,"abstract":"We report systematic investigation of thickness dependent surface topography, magnetic properties and magnetic domain structures of amorphous Fe80Ta8C12 (x nm) films with x=5–100 nm. All the as-deposited films fabricated directly on thermally oxidized Si substrate at ambient temperature using magnetron sputtering technique exhibit amorphous structure. The structural studies reveal that island-like structure in ultra-thin films transforms into continuous one with increasing x>10. In addition, the average surface roughness increases with increasing x, but without any systematic dependency on x. Room temperature magnetic properties illustrate that the paramagnetic nature observed for films with x 97%), low coercivity (HC 3.5 kA/m) and HS (>40 kA/m) and reduced MR/MS (<45%). The magnetic domain studies not only reveal that the domains change from in-plane magnetization to dense stripe domain pattern with increasing x due to enhancement of effective magnetic anisotropy caused by stress quenched in during deposition, but also confirm that films with 12<x<40 exhibit in-plane magnetization with uniaxial anisotropy. High temperature thermomagnetization reveal a clear magnetic phase transition from ferromagnetic to paramagnetic state at relatively higher temperature of about 530 K. The observed results are elucidated on the basis of enhanced effective magnetic anisotropy, change in the magnetic domain structure and magnetic disorder with increasing FeTaC film thickness.","PeriodicalId":16326,"journal":{"name":"Journal of Material Sciences & Engineering","volume":"140 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2018-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88442214","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: 2

In situ Formation of Metal Nanoparticles through Electron Beam Irradiation: Modeling Real Materials from First-Principles Calculations 电子束辐照下金属纳米颗粒的原位形成:从第一性原理计算模拟真实材料

Journal of Material Sciences & Engineering Pub Date : 2018-06-01 DOI: 10.4172/2169-0022.1000461

J. Andrés, E. Longo, A. F. Gouveia, L. Gracia, M. C. Oliveira, J. Costa

{"title":"In situ Formation of Metal Nanoparticles through Electron Beam Irradiation: Modeling Real Materials from First-Principles Calculations","authors":"J. Andrés, E. Longo, A. F. Gouveia, L. Gracia, M. C. Oliveira, J. Costa","doi":"10.4172/2169-0022.1000461","DOIUrl":"https://doi.org/10.4172/2169-0022.1000461","url":null,"abstract":"Advances in electron-matter studies, based on the irradiation of the electron beam in the transmission electron microscopy or field emission-scanning electron microscope on materials represents a preferred external physical and chemical tool for in situ remote command of the functional attributes of nanomaterials associated to its unique advantages of high spatial and temporal resolution and digital controllability. This makes the field of electron beam irradiation an emerging topic open for many researchers right now. Electron-material interactions envisage the formation, growth and coalescence of metal nanoparticles induced by electron beam irradiations and motivated by this discovery, in this Review, we provide an account of the recent advancements and theoretical developments to describe this phenomena and their applications. A theoretical framework is developed to determine the physical principles involved in the mechanism for the formation of metal nanoparticles on different materials by electron beam irradiation under the guidance of first-principles calculations at density functional level. New research directions are emerging in materials science to reach many applications by providing a deeper insight in the properties and phenomena in complex material systems. We conclude our work by briefly outlining the challenges that need to be addressed and the opportunities that can be tapped into. We hope that the review of the flourishing and vibrant topic with myriad possibilities would shine light on exploring the future directions of this research field by encouraging and opening the windows to meaningful multidisciplinary cooperation of researchers from different backgrounds and scientists from the fields such as chemistry, physics, engineering, biology, nanotechnology and materials science.","PeriodicalId":16326,"journal":{"name":"Journal of Material Sciences & Engineering","volume":"22 1","pages":"1-13"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75406508","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: 14

Poly( m -xylylene adipamide)-based Copolyamides: Effect of the Chemical Structure on Oxygen Permeation Properties 聚(m -二甲苯己二酰胺)基共聚物:化学结构对氧渗透性能的影响

Journal of Material Sciences & Engineering Pub Date : 2018-05-27 DOI: 10.4172/2169-0022.1000452

M. Vannini, Paola Marchese, A. Celli, C. Lorenzetti

引用次数: 0

Mechanistic Insight into the Carbon Dots: Protonation induced Photoluminescence 机制洞察碳点:质子化诱导的光致发光

Journal of Material Sciences & Engineering Pub Date : 2018-05-10 DOI: 10.4172/2169-0022.1000448

K. Syamantak, Navneet Cv, G. Prashant, J. Sanjhal, G. Souvik, C. K. Nandi

引用次数: 6