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Enhancing the formability of FeSi6.5 steel by the anodic polarization

International Journal of Minerals,Metallurgy and Materials 2022年第11期29卷 2072-2078页

作者： Dong Zhao Feng Ye binbin Liu Haoyang Du yaakov b.unigovski Emmanuel M.Gutman Roni Shneck State Key Laboratory for Advanced Metals and Materials University of Science and Technology BeijingBeijing 100083China State Grid Jilin Electric Power Research Institute Jilin 130021China Department of Materials Engineering Ben-Gurion University of the NegevBeer-Sheva 84105Israel

The effect of anodic polarization on the plastic deformation behavior and formability of FeSi6.5 steel at room temperature was experimentally investigated through uniaxial tensile and drawing of wire specimen in sulfuric acid solution with current densities of 0-40 mA/*** formability of the FeSi6.5 steel was significantly improved after the anodic *** plastic elongation of the specimen as an anode in the electrochemical environment was 4.4%-7%,but 2.7%in the *** drawing force under the anodic polarization decreased by 12.5%-26%compared to that in deionized *** softening is mainly attributed to the relief in work hardening caused by surface atomic *** work hardening mechanism of the FeSi6.5 steel wires under anodic polarization condition was analyzed using Hollomon equation and Voce relation combined with the Kocks-Mecking *** data support the view that the surface atom dissolution facilitates dislocation ***6.5 steel wires were obtained using electrochemical cold drawing and presented a smooth surface and good ductility without crack after five-pass drawing with a total cross-section area reduction of 88%.The drawing with the assistance of anodic polarization is a promising technology for processing hard and brittle metal materials.

关键词： FeSi6.5 steel plastic deformation anodic polarization Voce equation

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Analysis of Rolling Contact bearings Test Data by the bımodal Method

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Advances in Materials Physics and Chemistry 2021年第1期11卷 1-6页

作者： yaakov Meged The Faculty of Mechanical Engineering The Technion Israel Institute of Technology Haifa Israel

Lieblein J. and Zelen A. conducted a study of the fatigue life of deep groove ball bearings. This study was based on data of 4948 bearings as obtained from 5 companies and 213 test groups. Among these data is a detailed test report #3183, lot 73, consisting of 23 failed bearings. This report states that the Weibull slope of this group is 2.23, meaning that this distribution is mono sloped. These test data were plotted by the author on a bilinear scale plane, of endurance life versus bearing number and proved to be distinctly bi sloped. This basic difference prompted a wide study resulting in several new findings and set the grounds for a new analysis method.

关键词： bimodal Fatigue Mechanism Deep Groove ball bearings Mechanical Mode Hydraulic Mode Relative Intensity Cavitation Erosion

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Comparative transcriptome analyses shed light on carotenoid production and plastid development in melon fruit

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Horticulture Research 2021年第1期8卷 1229-1241页

作者： Noam Chayut Hui Yuan Yuval Saar Yi Zheng Tianhu Sun Xuesong Zhou Anna Hermanns Elad Oren Adi Faigenboim Maixia Hui Zhangjun Fei Michael Mazourek Joseph burger yaakov Tadmor Li Li Department of Vegetable Research ARONewe Ya’ar Research CenterP.O.Box 1021Ramat Yishay 30095Israel Robert W.Holley Center for Agriculture and Health USDA-Agricultural Research ServiceCornell UniversityIthacaNY 14853USA Plant breeding and Genetics Section School of Integrative Plant ScienceCornell UniversityIthacaNY 14853USA boyce Thompson Institute IthacaNY 14853USA State Key Laboratory of Crop Genetics&Germplasm Enhancement Nanjing Agricultural UniversityNanjing 210095China Present address:John Innes Centre Norwich Research ParkNorwichUK

Carotenoids,such asβ-carotene,accumulate in chromoplasts of various fleshy fruits,awarding them with colors,aromas,and *** Orange(CmOr)gene controlsβ-carotene accumulation in melon fruit by posttranslationally enhancing carotenogenesis and repressingβ-carotene turnover in *** isomerase(CRTISO)isomerizes yellow prolycopene into red lycopene,a prerequisite for further metabolism intoβ-*** comparatively analyzed the developing fruit transcriptomes of orange-colored melon and its two isogenic EMS-induced mutants,low-β(Cmor)and yofi(Cmcrtiso).The Cmor mutation in low-βcaused a major transcriptomic change in the mature *** contrast,the Cmcrtiso mutation in yofi significantly changed the transcriptome only in early fruit developmental *** findings indicate that melon fruit transcriptome is primarily altered by changes in carotenoid metabolic flux and plastid conversion,but minimally by carotenoid composition in the ripe *** of the differentially expressed genes into functional groups revealed an association between fruit carotenoid metabolic flux with the maintenance of the photosynthetic apparatus in fruit ***,large numbers of thylakoid localized photosynthetic genes were differentially expressed in low-β.CmOR family proteins were found to physically interact with light-harvesting chlorophyll a–b binding proteins,suggesting a new role of CmOR for chloroplast maintenance in melon *** study brings more insights into the cellular and metabolic processes associated with fruit carotenoid accumulation in melon fruit and reveals a new maintenance mechanism of the photosynthetic apparatus for plastid development.

关键词： apparatus orange metabolism

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