Procedia Materials Science最新文献

On Fatigue Behaviour of Two Spring Steels. Part II: Mathematical Models 两种弹簧钢的疲劳性能研究。第二部分:数学模型

Procedia Materials Science Pub Date : 2016-06-13 DOI: 10.1016/J.MSPRO.2014.06.236

D. Angelova, R. Yordanova, S. Yankova

引用次数: 1

Direct Bonding of SUS304 Stainless Steel by Metal Salt Generation Bonding Technique with Formic Acid 金属盐生成法与甲酸直接键合SUS304不锈钢

Procedia Materials Science Pub Date : 2016-01-01 DOI: 10.1016/j.mspro.2016.03.017

Shinji Koyama , Tatsunori Tsuneto

引用次数: 3

Microstructure Modification of CGDS and HVOF Sprayed CoNiCrAlY Bond Coat Remelted by Electron Beam 电子束重熔CGDS和HVOF喷涂锥形粘接层的微观结构改性

Procedia Materials Science Pub Date : 2016-01-01 DOI: 10.1016/j.mspro.2016.03.016

Petra Gavendová , Jan Čížek , Jan Čupera , Makoto Hasegawa , Ivo Dlouhý

{"title":"Microstructure Modification of CGDS and HVOF Sprayed CoNiCrAlY Bond Coat Remelted by Electron Beam","authors":"Petra Gavendová , Jan Čížek , Jan Čupera , Makoto Hasegawa , Ivo Dlouhý","doi":"10.1016/j.mspro.2016.03.016","DOIUrl":"10.1016/j.mspro.2016.03.016","url":null,"abstract":"<div><p>In the present work two techniques are combined to optimize bond coat properties before thermal barrier coating (TBC) application, the cold gas dynamic spraying (CGDS) and electron beam remelting (EB). Results of the work focused on comparison of high velocity oxygen fuel (HVOF) and CGDS CoNiCrAlY bond coats are firstly presented. Than the effect of the electron beam remelting of the CoNiCrAlY coating manufactured by HVOF and CGDS deposition techniques is deeply investigated. The CoNiCrAlY bond coat to Inconel substrate interface displayed locations with very poor bonding, in larger extent for the states prepared by HVOF comparing to CGDS. The bond coats prepared by both ways being EB remelted are typically removal of the defects on the substrate to bond coat interface. The microstructure of the bond coat after this treatment is formed by Inconel fine grain layer being followed by the surface layer consisting of elongated dendritic microstructure. An increased porosity has been observed in interdendritical space in larger extent for CGDS samples.</p></div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"12 ","pages":"Pages 89-94"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2016.03.016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84802959","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: 15

Cyclic Bending Deformation and Fracture of Al and Al-1.0mass%Mg Alloy Al及Al-1.0质量%Mg合金的循环弯曲变形与断裂

Procedia Materials Science Pub Date : 2016-01-01 DOI: 10.1016/j.mspro.2016.03.008

Hayato Ikeya , Hiroshi Fukutomi

引用次数: 2

Antibacterial Kaolinite Based Nanocomposites 抗菌高岭石基纳米复合材料

Procedia Materials Science Pub Date : 2016-01-01 DOI: 10.1016/j.mspro.2016.03.022

Sylva Holešová , Marianna Hundáková , Erich Pazdziora

引用次数: 19

The Evaluation of Actual Material Properties of Low Alloy CrMoV Steel from the Results of Small Punch Tests 从小冲孔试验结果评价低合金CrMoV钢的实际材料性能

Procedia Materials Science Pub Date : 2016-01-01 DOI: 10.1016/j.mspro.2016.03.001

Karel Matocha , Ladislav Kander , Ondřej Dorazil , Kaishu Guan , Yifen Xu

引用次数: 5

Diffusion of Hydrogen in the TRIP 800 Steel TRIP 800钢中氢的扩散

Procedia Materials Science Pub Date : 2016-01-01 DOI: 10.1016/j.mspro.2016.03.012

Jaroslav Sojka , Petra Váňová , Vlastimil Vodárek , Maria Sozańska

{"title":"Diffusion of Hydrogen in the TRIP 800 Steel","authors":"Jaroslav Sojka , Petra Váňová , Vlastimil Vodárek , Maria Sozańska","doi":"10.1016/j.mspro.2016.03.012","DOIUrl":"10.1016/j.mspro.2016.03.012","url":null,"abstract":"<div><p>The presented paper is devoted to the study of hydrogen diffusion characteristics in the C-Mn-Si TRIP 800 steel. The steel was tested in three different states: in as-received state after hot and cold rolling and subsequent heat treatment; and furthermore after 5% and 10% tensile deformation. Hydrogen diffusion characteristics were studied by means of electrochemical permeation method. Two build up transients corresponding to lower and higher charging current densities as well as a decay transient were recorded during experiment. The lowest values of hydrogen diffusion coefficient (from 1.10<sup>-7</sup> to 3.5.10<sup>-7</sup> cm<sup>2</sup>.s<sup>-1</sup>) were observed during the first build up transient; the value of 3.5.10<sup>-7</sup> cm<sup>2</sup>.s<sup>-1</sup> corresponded to 10% tensile deformation. During the 2<sup>nd</sup> build up transient corresponding to the higher charging current density, hydrogen diffusion coefficients increased markedly reflecting thus the fact that hydrogen trapping was less pronounced. For decay transients hydrogen diffusion coefficients were situated between values obtained for the 1<sup>st</sup> and 2<sup>nd</sup> build up transients. In all studied states, rather high sub-surface hydrogen concentration was observed during the 1<sup>st</sup> build up transient rising to 12.6ppm of hydrogen in as-received state. The obtained results are explained taking into account steel microstructure and hydrogen trapping.</p></div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"12 ","pages":"Pages 66-71"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2016.03.012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76737444","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: 6

Magneto-Plasmonic Properties of Au/Fe/Au Planar Nanostructures: Theory and Experiments Au/Fe/Au平面纳米结构的磁等离子体特性:理论与实验

Procedia Materials Science Pub Date : 2016-01-01 DOI: 10.1016/j.mspro.2016.03.024

Jaroslav Vlček , Michal Lesňák , Petr Otipka , Jaroslav Sobota

引用次数: 4

Decreasing Thermal Stresses in Steam Generator Collector Weld's Area Using External Cooling 采用外冷法降低蒸汽发生器集热器焊缝区域的热应力

Procedia Materials Science Pub Date : 2016-01-01 DOI: 10.1016/j.mspro.2016.03.003

Roman Krautschneider, Lukas Joch

{"title":"Decreasing Thermal Stresses in Steam Generator Collector Weld's Area Using External Cooling","authors":"Roman Krautschneider, Lukas Joch","doi":"10.1016/j.mspro.2016.03.003","DOIUrl":"10.1016/j.mspro.2016.03.003","url":null,"abstract":"<div><p>Numerous WWER-440 steam generators showed a very serious problem of cracking in weld joints which are connecting primary collectors to the steam generator's vessel. As a cause of this cracking was determined stress corrosion cracking mechanism. The weld is connecting austenitic steel collector to the carbon steel vessel, so it is a dissimilar metal weld. There are two approaches how to lower the possibility of stress corrosion cracking in the weld. First one is to improve the secondary water chemistry in the weld's surrounding to stop the corrosion and second one is to decrease presented stresses in weld's area. It is better to combine both approaches. This paper deals with the second approach of possibilities to decrease presented stresses. Inspired by Russian study of external cooling on WWER-1000 steam generators, it was an attempt to adapt the external cooling idea on the WWER-440 steam generators and their problem of weld cracking. It was shown that by using the external cooling it is possible not just lower the presented tensile stresses but to change the tensile stresses into compressive stresses. This will of course result in significant reduction of stress corrosion cracking possibility in the steam generator primary collector weld's area.</p></div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"12 ","pages":"Pages 12-17"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2016.03.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90119840","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: 3

Characterization of Reactor Pressure Vessel Steel by ABI Testing 用ABI试验表征反应堆压力容器钢

Procedia Materials Science Pub Date : 2016-01-01 DOI: 10.1016/j.mspro.2016.03.002

Petr Haušild , Jan Siegl , Aleš Materna , Miloš Kytka , Radim Kopřiva

引用次数: 3