Results 101 to 110 of about 895 (232)
Teshugang, 2007 The compound,size,amount and distrbution of non-metallic inclusion in grade A hull plate steel (0. 16C,0.21Si,0.50Mn,0.011P,0.027S)produced by 30 t LD converter -ladle argon stiring- 150 mm×1050 mm slab concasting ...
尚德礼, 张洪哲, 吕春风
doaj
Threshold Currents of Vacuum Arcs With Tungsten and Copper Cathodes
High Voltage, EarlyView.ABSTRACT This paper presents the results of an experimental study aimed at determining the threshold current for triggering a vacuum arc discharge, the probability of arc ignition and the average arc operation time depending on the current for tungsten and copper electrodes.
P. S. Mikhailov +4 more
wiley +1 more source
Optimization on Remelting Process of 1.1 t ESR Ingot of Blade Steel 1Cr12Ni2Mo2VN
Teshugang, 2015 The production flowsheet of electrode of blade steel 1Cr12Ni2Mo2VN (/% : 0.10C, 0.24Si, 0.81 Mn, 0.013P, 0. 002S, 11.75Cr, 2.63Ni, 1.70Mo, 0.32V, 0.033N) is 30 t EAF-VOD-LF-2.67 t ingot casting-annealing- Φ250 mm bloom forging process.
严清忠 +8 more
doaj
Analyse and research of nonmetallic inclusion for steel 100Cr6
Metalurgija, 2008 Steel 100Cr6 belongs to a group of hardened steels, which are applicable for production of rolling elements and rings. In this paper, the research results of presence the non-metallic inclusions and there chemical composition are presented for the steel produced in vacuum and open induction electric furnace and there influence on the standard proper ...
openaire +1 more source
Network Structure and the Efficiency Gains from Mergers: Evidence from U.S. Freight Railroads
The RAND Journal of Economics, EarlyView.ABSTRACT The trade‐off between market power and efficiency gains is central to antitrust analyses of mergers, but empirical evidence quantifying efficiencies remains limited. Using transaction‐level data from U.S. freight railroads (1985–2005), this article quantifies merger‐induced cost efficiencies, driven mainly by eliminating inter‐railroad ...
Yanyou Chen
wiley +1 more source
Identification of Nonmetallic Inclusion in Steel
Tetsu-to-Hagane, 1971 Minoru SASAKI, Isamu TAGUCHI
openaire +2 more sources
Archaeometry, EarlyView.ABSTRACT Twelve metal artifacts from recent excavations at the Sasanian archaeological site of Jahāngir in western Iran have been analyzed. These items include both decorative and utilitarian artifacts. The samples were examined using micro‐X‐ray fluorescence (μ‐XRF), scanning electron microscopy with energy‐dispersive X‐ray spectroscopy (SEM‐EDS), and
Omid Oudbashi +2 more
wiley +1 more source
Does attachment removal damage enamel? Influence of adhesive, resin, and bur on surface integrity
European Journal of Oral Sciences, EarlyView.Abstract To evaluate the combination of composites, adhesive systems, and burs considering artificial accelerated aging (AAA), influence enamel roughness and morphology after attachment removal. One hundred ninety‐two bovine enamel specimens were divided according to composite type (Transbond XT, flowable, bulk‐fill flowable), adhesive system (Single ...
Marilia Daniela Busnardo Canadas +2 more
wiley +1 more source
Effect of Beam Oscillation on Microstructure and Mechanical Properties of Electron Beam Welded EN25 Steel. [PDF]
Materials (Basel), 2023 Singh V, Srirangam P, Roy GG.
europepmc +1 more source
Engineered surface strategies to manage dental implant‐related infections
Periodontology 2000, EarlyView.Abstract When exposed to the oral environment, dental implants, like natural surfaces, become substrates for microbial adhesion and accumulation, often leading to implant‐related infections—one of the main causes of implant failure. These failures impose significant costs on patients, clinicians, and healthcare systems.
João Gabriel S. Souza +7 more
wiley +1 more source