Procedia Materials Science最新文献_第5页

Refining of AZ91 Magnesium Alloy Obtained in Machining Chips Recycling 加工切屑回收中获得AZ91镁合金的精炼

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/J.MSPRO.2015.04.149

Roberto Lucci, R. L. Padilla, Santiago Cantero, Raúl Bariles, C. Oldani

引用次数: 12

Wear Characteristics of Hardfacing Alloys: State-of-the-art 堆焊合金的磨损特性:最先进的

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.06.002

B. Venkatesh, K. Sriker, V.S.V. Prabhakar

引用次数: 72

Rhombohedral Graphite Phase in Nodules from Ductile Cast Iron 球墨铸铁球墨球中的菱形石墨相

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/J.MSPRO.2015.04.153

A. Roviglione, J. Hermida

引用次数: 12

Influence of Metalworking Defect in Knee Cruciate Ligament Screws as a Possible Origin of Infections. 膝关节十字韧带螺钉金属加工缺陷对感染的影响。

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.05.029

Mario Spector , Guillermo García-Effron , Leandro E. Peretti

引用次数: 0

Cellulose Cork/phenolic Aerogel Nanocomposites as a Lightweight Thermal Insulator 纤维素软木/酚醛气凝胶纳米复合材料作为轻质隔热材料

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.11.026

H.R. Hadizadeh Raeisi, M. Razzaghi, A.R. Bahramian, M. Razzaghi Kashani

引用次数: 5

Microstructure and High Temperature Oxidation Behaviour of Zr-Doped Aluminide Coatings Fabricated on Nickel-based Super Alloy 镍基超级合金上zr掺杂铝化物涂层的显微组织和高温氧化行为

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.11.011

I. Khakpour, R. Soltani, M. Heydarzadeh Sohi

引用次数: 17

Microstructural and Mechanical Properties of Nano/Ultra-fine Structured 7075 Aluminum Alloy by Accumulative Roll-Bonding Process 累积滚接工艺制备纳米/超细组织7075铝合金的显微组织和力学性能

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.11.020

H. Alvandi, K. Farmanesh

{"title":"Microstructural and Mechanical Properties of Nano/Ultra-fine Structured 7075 Aluminum Alloy by Accumulative Roll-Bonding Process","authors":"H. Alvandi, K. Farmanesh","doi":"10.1016/j.mspro.2015.11.020","DOIUrl":"10.1016/j.mspro.2015.11.020","url":null,"abstract":"<div><p>In this paper, microstructure and mechanical properties of Nano/ultra-fine structured 7075 Aluminum alloy were investigated by accumulative roll bonding process at room temperature. After the accumulative roll bonding, the tensile yield strength, ultimate strength and microhardness of the Nano/ultra-fine structured 7075 Aluminum alloy were 216%, 114%, and 122% higher than those of the coarse-grained samples, respectively, while elongation to failure was lower than the primary sample. The elongation to failure decrease value is high after the first pass while after subsequent passes, it remains almost constant. Evolution of microstructure of the samples was investigated by transmission electron microscopy (TEM) and field emission scanning electron microscope (FESEM). In addition, phase analysis after ARB were performed using X-ray diffraction analysis. The micro scale tensile fracture morphology of the Al 7075 alloy at different ARB strains were investigated by using FESEM. According to TEM micrographs, the ARB processed materials after six passes were homogeneously filled with the ultra-fine grains, meaning that grain sizes were about 130nm. XRD, FESEM and TEM results show that MgZn2 precipitates were broken, and small spherical particles were formed during ARB, which is distributed uniformly throughout the material. Uniform distribution of these fine particles restricted grain growth, resulting in the formation of ultra-fine grains. Fracture morphologies of samples after ARB show that the average dimple size gradually decreases with increasing number of ARB passes, which lead to fracture type changes from ductile to brittle.</p></div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"11 ","pages":"Pages 17-23"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2015.11.020","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81731798","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: 39

Area Efficient Hybrid Parallel Prefix Adders 区域高效混合并行前缀加法器

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.06.069

N. Poornima , V. S. Kanchana Bhaaskaran

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引用次数: 16

Studies on Acoustic Activity of Red Palm Weevil the Deadly Pest on Coconut Crops 椰子作物致命害虫红棕榈象甲的声活性研究

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.06.081

Betty Martin , S. Maflin Shaby , M.S. Godwin Premi

引用次数: 7

Calculating the Bulk Modulus of Iron and Steel Using Equilibrium Molecular Dynamics Simulation 用平衡分子动力学模拟计算钢铁的体积模量

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.11.005

A. Rajabpour, L. Seidabadi, M. Soltanpour

引用次数: 18