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Artykuły w czasopismach na temat „Co-Ni-Al- Mo-Ta”

Autor: Grafiati

Data publikacji: 6 września 2023

Data aktualizacji: 31 lipca 2025

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1

Inoue, Akihisa, Bao Long Shen, and Akira Takeuchi. "Syntheses and Applications of Fe-, Co-, Ni- and Cu-Based Bulk Glassy Alloys." Materials Science Forum 539-543 (March 2007): 92–99. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.92.

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This paper reviews our recent results of the formation, fundamental properties, workability and applications of late transition metal (LTM) base bulk glassy alloys (BGAs) developed since 1995. The BGAs were obtained in Fe-(Al,Ga)-(P,C,B,Si), Fe-(Cr,Mo)-(C,B), Fe-(Zr,Hf,Nb,Ta)-B, Fe-Ln-B(Ln=lanthanide metal), Fe-B-Si-Nb and Fe-Nd-Al for Fe-based alloys, Co-(Ta,Mo)-B and Co-B-Si-Nb for Co-based alloys, Ni-Nb-(Ti,Zr)-(Co,Ni) for Ni-based alloys, and Cu-Ti-(Zr,Hf), Cu-Al-(Zr,Hf), Cu-Ti-(Zr,Hf)-(Ni,Co) and Cu-Al-(Zr,Hf)-(Ag,Pd) for Cu-based alloys. These BGAs exhibit useful properties of high mecha

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2

Park, Si-Jun, Seong-Moon Seo, Young-Soo Yoo, Hi-Won Jeong, and HeeJin Jang. "Statistical Study of the Effects of the Composition on the Oxidation Resistance of Ni-Based Superalloys." Journal of Nanomaterials 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/929546.

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The effects of alloying elements (Co, Cr, Mo, W, Al, Ti, and Ta) on the oxidation resistance of Ni-based superalloys are studied using the Response Surface Methodology (RSM). The statistical analysis showed that Al and Ta generally improve the oxidation resistance of the alloy, whereas Ti and Mo degrade the oxidation resistance. Co, Cr, and W did not alter oxidation rate significantly when examined by the mass gain averaged for all model alloys. However, it is remarkable that the degree of the effects of alloying elements varied with the concentration of other elements. Further, the effect of

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3

Hahn, Junhee, Xiao Xiao, and Dong Bok Lee. "Oxidation of Ni-Cr-Co-Al-Mo-Ti-Re-Ta-W-Ru Single Crystals at 1000 ^oC in Air." Korean Journal of Metals and Materials 58, no. 4 (2020): 234–46. http://dx.doi.org/10.3365/kjmm.2020.58.4.234.

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Three kinds of Ni-based single crystals with the compositions of 63.8Ni-7.5Cr-5.1Co-4.8Al-1.9Mo- 0.9Ti-3Re-11.8Ta-1.2W, 61.4Ni-7.4Cr-5Co-4.8Al-1.8Mo-0.9Ti-3.1Re-11.6Ta-4W, and 60.9Ni-7.5Cr-5Co-4.8Al- 2Mo-1Ti-2.9Re-10.9Ta-1.2W-3.8Ru, in wt%, were cast in a Bridgman furnace. In the cast alloys, Cr, Co, Re, Mo, W, and Ru became microsegregated in dendrites consisting of γ-Ni, while Ni, Ta, and Al microsegregated in interdendrites consisting of eutectic γ/γ . The cast alloys were oxidized at 1000 oC up to 275 h in air to study the effect of alloying elements on high-temperature oxidation. The oxid

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4

Yamanaka, Syuki, Ken-ichi Ikeda, and Seiji Miura. "Effect of Multi-Elements Substitution on the Mechanical Properties of Intermetallic Compound." MRS Advances 4, no. 25-26 (2019): 1497–502. http://dx.doi.org/10.1557/adv.2019.119.

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ABSTRACTIt is well known that various elements substitute for a certain sub-lattice of intermetallic compounds. There have been various experimental investigations of the effects of substituted elements on mechanical properties, however, there are few reports describing the effects of multi-element substitution. In the present study, L12-type compounds A3B (Ni3Al and Co3(Al,W)) were selected as model compounds because their substitution behavior is well known. It was reported that various elements such as Ni, Co, Cu, Pd and Pt occupy the A-site, whereas Al, Si, Ga, Ge, Ti, V, Nb, Ta, Mo, and W

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5

Sanin, Vitaliy V., Yury Yu Kaplansky, Maksym I. Aheiev, et al. "Structure and Properties of Heat-Resistant Alloys NiAl–Cr–Co–X (X = La, Mo, Zr, Ta, Re) and Fabrication of Powders for Additive Manufacturing." Materials 14, no. 12 (2021): 3144. http://dx.doi.org/10.3390/ma14123144.

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The NiAl–Cr–Co–X alloys were produced by centrifugal self-propagating high-temperature synthesis (SHS) casting. The effects of dopants X = La, Mo, Zr, Ta, and Re on combustion, as well as the phase composition, structure, and properties of the resulting cast alloys, have been studied. The greatest improvement in overall properties was achieved when the alloys were co-doped with 15% Mo and 1.5% Re. By forming a ductile matrix, molybdenum enhanced strength characteristics up to the values σucs = 1604 ± 80 MPa, σys = 1520 ± 80 MPa, and εpd = 0.79%, while annealing at T = 1250 ℃ and t = 180 min im

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6

Singh, Mahander Pratap, Emmanuel Femi Olu, Prafull Pandey, and Kamanio Chattopadhyay. "Thermophysical and magnetic properties of Co-Ni-Mo-Al-Ta class of tungsten free Co-based superalloys." Journal of Alloys and Compounds 879 (October 2021): 160379. http://dx.doi.org/10.1016/j.jallcom.2021.160379.

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7

Rogachev, S. A., A. S. Rogachev, and M. I. Alymov. "Estimation of the critical vitrification rate of pure metals using molecular dynamics simulation." Доклады Академии наук 486, no. 2 (2019): 168–72. http://dx.doi.org/10.31857/s0869-56524862168-172.

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A molecular dynamics simulation method was applied for estimation of critical cooling rates (vc) that required for amorphization of pure metals: Mg, Al, Ti, Fe, Co, Ni, Cu, Zr, Mo, Pd, Ag, Ta, W, Pt, Au, and Pb. The range of values vc was found to be from 7.9 × 1011 K/s for Al to 3.8 × 1013 K/s for Zr. The atomic structure obtained at different cooling rates is described. A dependence of the specific volume on temperature was investigated both during the amorphization and crystallization processes. The modelling shows, which metals have the highest temperature range of long-term stability of t

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8

Prut, V. V. "High pressure ruby scale." Izvestiya vysshikh uchebnykh zavedenii. Fizika, no. 7 (2022): 99–105. http://dx.doi.org/10.17223/00213411/65/7/99.

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A new calibration of the ruby scale is proposed, based on the Hugoniot equations and static isotherms at high pressures of a number of substances: Al, Co, Ni, Cu, Zn, Mo, Ag, Ta, W, Pt, Au. New functional dependencies have been identified P (λ). Errors arising because of errors in experimental shock and static data and the use of various functional dependences of equations of state are analyzed. The new scale is compared with all 14 published calibrations.

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9

Prüβner, K., K. B. Alexander, B. A. Pint, P. F. Tortorelli, and I. G. Wright. "Interfacial Segregation in Oxide Scales on Nicrai-Based Alloys." Microscopy and Microanalysis 3, S2 (1997): 785–86. http://dx.doi.org/10.1017/s1431927600010813.

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Previous studies addressing the segregation of reactive elements in protective oxide scales and their beneficial effect on scale adhesion have primarily concentrated on primary alumina-formers (e.g. β-NiAl + FeCrAl).In our study the oxidation behaviour of three NiCrAl alloys, which form complex scales was studied in air at 1423 K and at 1473 K, both in isothermal (100 h) and in cyclic oxidation (100 x lh). The composition (in at.-%) of these alloys is the following: General Electric alloy René N5 (64.9 Ni, 7.8 Cr, 13.9 Al, 0.1 Fe, 2.1 Ta, 0.05 Hf, 1.6 W, 1.0 Re, 0.15 Si, 7.3 Co, 0.9 Mo, 0.003

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10

Zhang, Yu, Qing Wang, Hong-Gang Dong, Chuang Dong, Hong-Yu Zhang, and Xiao-Feng Sun. "High-Temperature Structural Stabilities of Ni-Based Single-Crystal Superalloys Ni–Co–Cr–Mo–W–Al–Ti–Ta with Varying Co Contents." Acta Metallurgica Sinica (English Letters) 31, no. 2 (2017): 127–33. http://dx.doi.org/10.1007/s40195-017-0678-0.

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11

Kommel, Lembit A., and Boris B. Straumal. "Diffusion in SC Ni-Base Superalloy under Viscoplastic Deformation." Defect and Diffusion Forum 297-301 (April 2010): 1340–45. http://dx.doi.org/10.4028/www.scientific.net/ddf.297-301.1340.

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Deformation-enhanced diffusion in single-crystalline Ni-based superalloy specimens have been investigated under the conditions of hard cyclic viscoplastic tension-compression deformation. The chemical composition of phases before and after cyclic deformation was investigated by filed-emission scanning electron microscopy. At low strain amplitude values (0-0.05%; 0-0.2%; 0-0.5%) the material shows upscaled viscoelastic behavior and microstructural stability. At the increase of strain amplitude in the γ+γ’-phase (0-1%), the Ni, Re and Co content decreases, whereas Al and Mo content increases sig

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12

Liu, Dengyu, Qingqing Ding, Qian Zhou, et al. "Microstructure, Mechanical Properties and Thermal Stability of Ni-Based Single Crystal Superalloys with Low Specific Weight." Crystals 13, no. 4 (2023): 610. http://dx.doi.org/10.3390/cryst13040610.

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Ni-based single crystal (SX) superalloy with low specific weight is vital for developing aero engines with a high strength-to-weight ratio. Based on an alloy system with 3 wt.% Re but without W, namely Ni-Co-Cr-Mo-Ta-Re-Al-Ti, a specific weight below 8.4 g/cm3 has been achieved. To reveal the relationship among the composition, mechanical properties, and thermal stability of Ni-based SX superalloys, SXs with desirable microstructures are fabricated. Tensile tests revealed that the SX alloys have comparable strength to commercial second-generation SX CMSX-4 (3 wt.% Re and 6 wt.% W) and Rene′ N5

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13

Yu, Zhu Huan, and Jun Feng Qiang. "Microsegregation Behavior of Single Crystal Superalloy." Advanced Materials Research 983 (June 2014): 121–26. http://dx.doi.org/10.4028/www.scientific.net/amr.983.121.

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The major advancements in some mechanical properties of single crystal superalloys can be attributed to the carbon addition. The present study investigated the effect of carbon addition levels on the microsegregation behavior of single crystal superalloys. Quantitatative partitioning results indicated that typical single crystal superalloy segregation behavior for some elements such as W, Ni, Co, are all towards the dendrite core regions, while for elements of Al, Mo, Ta, Ti, Cr, partition towards the interdendrite regions. For all the alloys studied, the baseline alloy showed the most severe

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14

Hall, E. L., and M. R. Jackson. "Microstructural Characterization of Rapidly Solidified Carbide-Containing Ni-Base Superalloys." Proceedings, annual meeting, Electron Microscopy Society of America 43 (August 1985): 48–49. http://dx.doi.org/10.1017/s0424820100117315.

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The temperature capability of nickel-base superalloys which are used in aircraft turbines may be able to be extended if novel microstructures can be produced in these materials by rapid solidification. The primary goal of these efforts is to achieve a fine dispersion of small precipitates which are stable at high temperature in the alloys. One class of alloys which seem particularly promising are the eutectic superalloys, which solidify via a eutectic reaction in which a γ- γ’ matrix containing MC carbides is formed. For this investigation, alloys which contained either Ta, Ti, or V as the pri

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15

Nikonenko, E. L., Natalya A. Popova та N. A. Koneva. "Structure and Phase Composition of Ni-Al-Co-Mе-Based Alloy Containing Rhenium and Ruthenium". Solid State Phenomena 303 (травень 2020): 111–17. http://dx.doi.org/10.4028/www.scientific.net/ssp.303.111.

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The present study was conducted by transmission electron microscopy (TEM) in order to investigate the structure of multicomponent nickel-based alloy obtained by directional solidification and change in its phase composition at high-temperature annealing. All states of the alloy possessed monocrystalline structure with [001] orientation. The alloy under study contained other elements apart from Ni, such as: Al, Co, and also Mo, Cr, W, Ta, Re, and Ru. The alloy was investigated in three states after annealing for: 1) 118 h; 2) 372 h; 3) 1274 h at 1000°С. The basic phases that form the alloy were

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16

Huang, Zhao Hui, Yong Ning Tan, Xi Hong Zhao, Jian Ping Li, and Qiang Zhang. "High Temperature Oxidation Resistance of Two Ni(Co)CrAlYSi(Hf) Overlay Coatings." Materials Science Forum 539-543 (March 2007): 1146–52. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.1146.

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Two MCrAlY overlay coatings (NiCrAlYSi and NiCoCrAlYHf) were deposited on a DS superalloy of Ni-Al-Cr-Co-W-Mo-Ta-Hf system by vacuum arc deposition method. The two coatings show a good protection for the DS superalloy during the isothermal oxidation test at 1150 for 100 h. A continuous alumina-based scale was formed at the surfaces of the coated specimens after oxidation. Y2O3, NiO and SiO2 are also detectable in the oxide scale. For the Hf-bearing coating, some HfO2 particles exist at the interface between the coating and the substrate. But after the cyclic thermal oxidation at 1100°C, the Hf

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17

Das, Saurabh Mohan, Mahander Pratap Singh та Kamanio Chattopadhyay. "Evolution of oxides and their microstructures at 800°C in a γ-γ’ stabilised Co-Ni-Al-Mo-Ta superalloy". Corrosion Science 155 (липень 2019): 46–54. http://dx.doi.org/10.1016/j.corsci.2019.02.013.

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18

Babalola, Bukola Joseph, Mxolisi Brendon Shongwe, Nthabiseng Maledi, et al. "Effect of Nanocrystalline Nickel Powder and Co, Mo, Ta, and Al Additions on Isothermal Oxidation Behavior of Ni–17Cr Alloy." Metallography, Microstructure, and Analysis 9, no. 1 (2020): 75–85. http://dx.doi.org/10.1007/s13632-020-00614-9.

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19

Chaligava, Omari, Igor Nikolaev, Khetag Khetagurov, et al. "First Results on Moss Biomonitoring of Trace Elements in the Central Part of Georgia, Caucasus." Atmosphere 12, no. 3 (2021): 317. http://dx.doi.org/10.3390/atmos12030317.

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The moss biomonitoring technique was used for assessment of air pollution in the central part of Georgia, Caucasus, in the framework of the UNECE ICP Vegetation. A total of 35 major and trace elements were determined by two complementary analytical techniques, epithermal neutron activation analysis (Na, Mg, Al, Cl, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Se, B, Rb, Sr, Zr, Mo, Sb, I, Cs, Ba, La, Ce, Nd, Sm, Eu, Tb, Yb, Hf, Ta, W, Th, and U) and atomic absorption spectrometry (Cu, Cd, and Pb) in the moss samples collected in 2019. Principal Component Analyses was applied to show the associati

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20

Ofori, A. P., та C. J. Humphreys. "Atomic Site Occupancy of Platinum Group Metals in the γ’ (Ll2) Phase of a γ-γ’ Complex Nickel Base Superalloy Using Alchemi (Atomic Location by Channnelling Enhanced Microanalysis)". Microscopy and Microanalysis 7, S2 (2001): 346–47. http://dx.doi.org/10.1017/s143192760002780x.

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Nickel-base superalloys (NBSAs) have remarkable mechanical properties (and corrosion resistance) at elevated temperatures. Single crystal NBSAs have found major use as turbine blades in aeroengines, where there is a large world market because the turbine blades have to be replaced at regular intervals. in order to develop engines with higher efficiency, considerable efforts are being devoted to enhance the temperature capabilities of superalloys. The two phase γ-γ’ structure that is crucial to NBSA characteristics is primarily produced by the presence of Al in combination with Ni: above a crit

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21

Huang, Xiao-Wen, Anne-Aurélie Sappin, Émilie Boutroy, Georges Beaudoin, and Sheida Makvandi. "Trace Element Composition of Igneous and Hydrothermal Magnetite from Porphyry Deposits: Relationship to Deposit Subtypes and Magmatic Affinity." Economic Geology 114, no. 5 (2019): 917–52. http://dx.doi.org/10.5382/econgeo.4648.

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Abstract The trace element composition of igneous and hydrothermal magnetite from 19 well-studied porphyry Cu ± Au ± Mo, Mo, and W-Mo deposits was measured by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) and then classified by partial least squares-discriminant analysis (PLS-DA) to constrain the factors explaining the relationships between the chemical composition of magnetite and the magmatic affinity and porphyry deposit subtypes. Igneous magnetite can be discriminated by relatively high P, Ti, V, Mn, Zr, Nb, Hf, and Ta contents but low Mg, Si, Co, Ni, Ge, Sb, W, a

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22

Dobrovská, Jana, Simona Dočekalová, Věra Dobrovská, and Karel Stránský. "Effect of Cooling Rate on Structural and Chemical Microheterogeneity of IN 738LC Nickel Based Superalloy." Solid State Phenomena 138 (March 2008): 201–8. http://dx.doi.org/10.4028/www.scientific.net/ssp.138.201.

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The paper deals with the effect of cooling rate on solidification behavior of IN 738LC nickel based superalloy and on resulting structural and chemical microheterogeneity of this alloy. Samples taken from as-received state were heated with controlled ramp rates (1, 5, 10 and 20 °C min-1). Immediately after melting they were cooled with the same controlled ramp rate with the help of the laboratory experimental system SETARAM SETSYS 18TM TG/DTA/TMA. Then the microanalysis of minority phases was conducted with use of X-ray spectroscopy and microstructure of the individual samples was documented b

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23

Idczak, Rafał, Robert Konieczny, and Jan Chojcan. "Mean hyperfine fields at 57Fe in dilute iron-based alloys studied by Mössbauer spectroscopy." Nukleonika 60, no. 1 (2015): 39–42. http://dx.doi.org/10.1515/nuka-2015-0010.

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Abstract The room temperature Mössbauer spectra of 57Fe were measured for numerous dilute iron-based alloys Fe1−xDx (D = Al, Co, Cr, Mn, Mo, Ni, Os, Pt, Re, Ru, Ta, Ti, V, W, Zn), annealed at 1270 K for 2 h before the measurements. The spectra were analyzed using the Hesse–Rübartsch method in order to determine the mean hyperfine magnetic field <B> at the 57Fe nuclei as a function of concentration x of the minority component of the alloy. As the binary alloys are one-faze solid solutions of an element D in iron, a linear relationship between <B> and x is observed. The result suppor

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24

Ol’shanetskii, V. E., and A. A. Glotka. "Distribution of Elements Within Carbides of Multicomponent Alloys of the Ni – Cr – Co – Al – W – Re – Ta – Mo – Nb – C System." Metal Science and Heat Treatment 63, no. 5-6 (2021): 318–26. http://dx.doi.org/10.1007/s11041-021-00689-3.

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MIYAZAKI, Shogo, Yoshinori MURATA, and Masahiko MORINAGA. "Evaluation of Partitioning Ratios of Re Atoms in Ni-Al-Re-X (X : Cr, Mo, W, Ti, Ta, Nb, Co)Quaternary Alloys." Tetsu-to-Hagane 80, no. 2 (1994): 166–71. http://dx.doi.org/10.2355/tetsutohagane1955.80.2_166.

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ENE, ANTOANETA, MARINA V. FRONTASYEVA, INGA ZINICOVSCAIA, et al. "INAA-XRF multielemental study of soils surrounding the steel industry and contamination assessment." Romanian Reports in Physics 77, no. 2 (2025): 706. https://doi.org/10.59277/romrepphys.2025.77.706.

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Instrumental neutron activation analysis and X-ray fluorescence techniques were used for the quantification of 43 elements (Na, Mg, Al, Si, Cl, K, Ca,Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, As, Br, Rb, Sr, Zr, Mo, Sb, Cs, Ba, La, Ce, Nd, Sm,Eu, Tb, Dy, Yb, Hf, Lu, Ta, W, Au, Th, U, Cu, Pb, Sn) in soils in the immediate vicinity of the iron and steel works at Galati, SE Romania. The spatial distribution patterns and multielement contamination risk indices indicate enrichment with toxic and harmful elements of soil collected from the sites close to the slag dump, blast furnaces, steel and milling pla

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Tassiou, S., and E. Vassiliades. "GEOCHEMICAL STUDY OF THE URBAN AND SUBURBAN AREA OF NAFPLION CITY, ARGOLIDHA PREFECTURE, HELLAS." Bulletin of the Geological Society of Greece 43, no. 3 (2017): 1520. http://dx.doi.org/10.12681/bgsg.11326.

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Soil, as the primary receptor of anthropogenic urban contamination acts as a sink for a variety of toxic and other hazardous substances. It constitutes, therefore, an indicator of contamination and may be utilised geochemically to assess environmental quality of urban and suburban areas. In Nafplion, an urban and suburban area of 50 km2 , was investigated using for the first time in Hellas an integrated approach with all available geoscientific techniques to make an in-depth environmental impact assessment. One of these techniques was applied geochemistry, which mapped the geochemistry of surf

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Ciocarlan, Alexandru, Margarita Shvetsova, Inga Zinicovscaia, et al. "Mineral Composition of Fifteen Species of Asteraceae Family Growing in the Republic of Moldova Using Neutron Activation Analysis." Agronomy 14, no. 10 (2024): 2387. http://dx.doi.org/10.3390/agronomy14102387.

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Members of Asteraceae family have properties enabling their application for medical purposes. The major- and microelement content in 15 medicinal species of the Asteraceae family growing in the National Botanical Garden, Republic of Moldova was determined by instrumental neutron activation analysis. A total of 31 chemical elements, Na, Mg, Al, Cl, K, Ca, Sc, V, Cr, Mn, Fe, Co, Ni, Zn, As, Se, Br, Rb, Sr, Mo, Sb, Cs, Ba, La, Ce, Sm, Tb, Hf, Ta, Th and U, were identified in herbal samples. Potassium was found to be the most abundant major element; its content in plants ranged from 20,700 mg/kg i

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Zhu, Lilong, Changdong Wei, Haiying Qi, Liang Jiang, Zhanpeng Jin, and Ji-Cheng Zhao. "Experimental investigation of phase equilibria in the Co-rich part of the Co-Al-X (X = W, Mo, Nb, Ni, Ta) ternary systems using diffusion multiples." Journal of Alloys and Compounds 691 (January 2017): 110–18. http://dx.doi.org/10.1016/j.jallcom.2016.08.210.

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Das, Saurabh Mohan, Mahander Pratap Singh та Kamanio Chattopadhyay. "Effect of Cr addition on the evolution of protective alumina scales and the oxidation properties of a Ta stabilized γ'-strengthened Co-Ni-Al-Mo-Ta-Ti alloy". Corrosion Science 172 (серпень 2020): 108683. http://dx.doi.org/10.1016/j.corsci.2020.108683.

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Ajtic, Jelena, Darko Sarvan, Branislava Mitrovic, Ana Cuculovic, Rodoljub Cuculovic, and Marina Frontasyeva. "Elemental composition of moss and lichen species in eastern Serbia." Nuclear Technology and Radiation Protection 33, no. 3 (2018): 275–85. http://dx.doi.org/10.2298/ntrp1803275a.

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Instrumental neutron activation analysis is used to determine a content of 47 elements (Na, Mg, Al, Cl, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Ni, Co, Cu, Zn, As, Se, Br, Rb, Sr, Zr, Mo, Ag, Cd, Sb, I, Ba, Cs, La, Ce, Nd, Sm, Eu, Gd, Tb, Dy, Tm, Yb, Lu, Hf, Ta, W, Au, Hg, Th, and U) in mosses (Homolothecium sp., Hypnum cupressiforme Hedw., and Brachythecium mildeanum (Schimp.) Schimp.) and lichen (Cladonia fimbriata (L.) Fr.) collected in three locations in Eastern Serbia over years 2006-2010. Concentrations of six elements (Zr, Nd, Gd, Tm, Yb, and Lu) in mosses in Serbia are measured for the first tim

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Rakoczy, Łukasz, Bogdan Rutkowski, Małgorzata Grudzień-Rakoczy, Rafał Cygan, Wiktoria Ratuszek та Anna Zielińska-Lipiec. "Analysis of γ′ Precipitates, Carbides and Nano-Borides in Heat-Treated Ni-Based Superalloy Using SEM, STEM-EDX, and HRSTEM". Materials 13, № 19 (2020): 4452. http://dx.doi.org/10.3390/ma13194452.

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The microstructure of a René 108 Ni-based superalloy was systematically investigated by X-ray diffraction, light microscopy, energy-dispersive X-ray spectroscopy, and electron microscopy techniques. The material was investment cast in a vacuum and then solution treated (1200 °C-2h) and aged (900 °C-8h). The γ matrix is mainly strengthened by the ordered L12 γ′ phase, with the mean γ/γ′ misfit, δ, +0.6%. The typical dendritic microstructure with considerable microsegregation of the alloying elements is revealed. Dendritic regions consist of secondary and tertiary γ′ precipitates. At the interfa

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Rakoczy, Łukasz, Ondrej Milkovič, Bogdan Rutkowski та ін. "Characterization of γ′ Precipitates in Cast Ni-Based Superalloy and Their Behaviour at High-Homologous Temperatures Studied by TEM and in Situ XRD". Materials 13, № 10 (2020): 2397. http://dx.doi.org/10.3390/ma13102397.

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In situ X-ray diffraction and transmission electron microscopy has been used to investigate René 108 Ni-based superalloy after short-term annealing at high-homologous temperatures. Current work is focused on characterisation of γ′ precipitates, their volume fraction, evolution of the lattice parameter of γ and γ′ phases and misfit parameter of γ′ in the matrix. Material in the initial condition is characterised by a high-volume fraction (over 63%) of γ′ precipitates. Irregular distribution of alloying elements was observed. Matrix channels were strongly enriched in Cr, Co, W and Mo, whereas pr

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Ángel Amorós a, José, Sandra Bravo, Francisco Jesús García Navarro, et al. "Zonificación de suelos vitícolas en Villanueva de Alcardete (Toledo, La Mancha, España) utilizando elementos traza." E3S Web of Conferences 50 (2018): 01025. http://dx.doi.org/10.1051/e3sconf/20185001025.

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Se realiza un estudio de suelos en el término municipal de Villanueva de Alcardete (Toledo, España) con la finalidad de señalar zonas homogéneas para el cultivo del viñedo. Se practicaron 15 calicatas en lugares representativos y se realizaron análisis físico químicos y clasificaciones edafológicas. También se consultaron fuentes clásicas de información pero se apunta como novedosa herramienta para la zonificación la composición geoquímica de los suelos. Se determinaron para cada perfil 11 elementos mayoritarios (Al, Ca, Fe, K, Na, Mg, Mn, P, S, Si, Ti) y 27 elementos traza (As, Ba, Ce, Co, Cr

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Ishiwari, R., N. Shiomi-Tsuda, and N. Sakamoto. "Stopping powers of Be, Al, Ti, V, Fe, Co, Ni, Cu, Zn, Mo, Rh, Ag, Sn, Ta, Pt and Au For 6.5 MeV protons." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 31, no. 4 (1988): 503–17. http://dx.doi.org/10.1016/0168-583x(88)90448-x.

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Shiomi-Tsuda, N., N. Sakamoto, and R. Ishiwari. "Stopping powers of Be, Al, Ti, V, Fe, Co, Ni, Cu, Zn, Mo, Rh, Ag, Sn, Ta, Pt and Au for 13 MeV deuterons." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 93, no. 4 (1994): 391–98. http://dx.doi.org/10.1016/0168-583x(94)95624-3.

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Duliu, Octavian G., Carmen I. Cristache, Ana-Voica Bojar, et al. "The Geochemistry of 1 ky Old Euxinic Sediments of the Western Black Sea." Geosciences 9, no. 11 (2019): 455. http://dx.doi.org/10.3390/geosciences9110455.

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To get more data on the geochemistry of Black Sea euxinic sediments, a 50-cm core was collected at a depth of 600 m on a Western Black Sea Continental Platform slope. The core contained unconsolidated sediments rich in cocoolithic ooze and mud. Epithermal Neutron and Prompt Gamma Activation Analysis were used to determine the content of nine major (Na, Mg, Al, Si, K, Ca, Ti, Mn, and Fe as oxides) and 32 trace elements (Cl, Sc, V, Cr, Co, Ni, Zn, As, Se, Br, Rb, Sr, Zr, Mo, Sn, Sb, Cs, Ba, La, Ce, Nd, Sm, Eu, Gd, Tb, Dy, Yb, Hf, Ta, W, Th, and U) with a precision varying between 3 and 9%. The c

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Min, P. G., V. V. Sidorov, S. A. Budinovskiy, and V. E. Vadeyev. "Influence of sulfur on heat resistance of single crystals of heat-resistant nickel alloy of Ni–Al–Co–Re–Ta–Mo–W–Ru–Cr system." Inorganic Materials: Applied Research 8, no. 1 (2017): 90–93. http://dx.doi.org/10.1134/s2075113317010233.

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Liu, Feng, Zexin Wang, Zi Wang, et al. "High-throughput determination of interdiffusivity matrices in Ni-Al-Ti-Cr-Co-Mo-Ta-W multicomponent superalloys and their application in optimization of creep resistance." Materials Today Communications 24 (September 2020): 101018. http://dx.doi.org/10.1016/j.mtcomm.2020.101018.

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Nomoto, Sukeharu, Masahito Segawa, and Makoto Watanabe. "Non- and Quasi-Equilibrium Multi-Phase Field Methods Coupled with CALPHAD Database for Rapid-Solidification Microstructural Evolution in Laser Powder Bed Additive Manufacturing Condition." Metals 11, no. 4 (2021): 626. http://dx.doi.org/10.3390/met11040626.

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A solidification microstructure is formed under high cooling rates and temperature gradients in powder-based additive manufacturing. In this study, a non-equilibrium multi-phase field method (MPFM), based on a finite interface dissipation model, coupled with the Calculation of Phase Diagram (CALPHAD) database, was developed for a multicomponent Ni alloy. A quasi-equilibrium MPFM was also developed for comparison. Two-dimensional equiaxed microstructural evolution for the Ni (Bal.)-Al-Co-Cr-Mo-Ta-Ti-W-C alloy was performed at various cooling rates. The temperature-γ fraction profiles obtained u

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Shvetsova, M. S., I. Z. Kamanina, M. V. Frontasyeva, et al. "ACTIVE MOSS BIOMONITORING USING THE «MOSS BAG TECHNIQUE» AT THE STATE MUSEUM-RESERVE «TSARITSYNO»." Bulletin of Dubna International University for Nature, Society, and Man. Series: Natural and engineering sciences, no. 1 (42) (September 23, 2019): 68–75. http://dx.doi.org/10.37005/1818-0744-2019-1-68-75.

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Moscow is a large metropolis in which the air is affected by the constant effects of chemicals produced by industrial facilities, vehicles, residential heating and other human activities on a daily basis. The protected and park areas on the territory of Moscow have an important recreational role, therefore, air quality control in these territories should be carried out first. Active moss biomonitoring has been used as an alternative method to conventional atmospheric monitoring for more than 40 years. This type of biomonitoring is successfully applied all over the world: in China, Serbia, Mold

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Kim, Myoung-Chan, Nam-Yung Park, and Yang-Kook Sun. "Analyzing the Doping Mechanism of High-Valence Element in Ni-Rich Cathode Materials." ECS Meeting Abstracts MA2024-01, no. 1 (2024): 165. http://dx.doi.org/10.1149/ma2024-011165mtgabs.

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Layered cathode materials, LiMO2 (M=Ni, Co,Mn, or Al), with a high nickel content are promising cathode materials owing to their near-theoretical specific capacity. However, the inherent chemical and structural instabilities of Ni-rich cathodes lead to several problems, including rapid capacity fading, thermal instability, gas evolution, and safety concerns.1 Introducing additional elements into Ni-rich cathodes is an essential strategy for addressing the instability of the cathode material. Conventionally, this doping strategy considers only the incorporation of additional elements into the b

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Park, Nam-Yung, and Yang-Kook Sun. "Elucidation of the Mechanism behind High-Valence Element Doping in Ni-Rich Cathode Materials." ECS Meeting Abstracts MA2024-02, no. 5 (2024): 597. https://doi.org/10.1149/ma2024-025597mtgabs.

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Layered cathode materials, LiMO2 (M=Ni, Co,Mn, or Al), with a high nickel content are promising cathode materials owing to their near-theoretical specific capacity. However, the inherent chemical and structural instabilities of Ni-rich cathodes lead to several problems, including rapid capacity fading, thermal instability, gas evolution, and safety concerns.1 Introducing additional elements into Ni-rich cathodes is an essential strategy for addressing the instability of the cathode material. Conventionally, this doping strategy considers only the incorporation of additional elements into the b

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Кропачева, Марья Юрьевна, Юлия Сергеевна Восель, Ксения Александровна Мезина, Дмитрий Константинович Белянин, Михаил Сергеевич Мельгунов та Ирина Владимировна Макарова. "ПЕРВЫЕ ДАННЫЕ О РАСПРЕДЕЛЕНИИ ИЗОТОПОВ, МАКРО- И МИКРОЭЛЕМЕНТОВ ИЗ АТМОСФЕРНЫХ ВЫПАДЕНИЙ В ЛИШАЙНИКАХ АРКТИЧЕСКИХ ТЕРРИТОРИЙ ЗАПАДНОЙ СИБИРИ". Bulletin of the Tomsk Polytechnic University Geo Assets Engineering 333, № 9 (2022): 46–56. http://dx.doi.org/10.18799/24131830/2022/9/3683.

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Актуальность исследования обусловлена началом активного промышленного освоения арктических территорий России. Для корректной оценки техногенного воздействия необходимо знать региональные уровни геохимического фона, а также пути атмосферного переноса вещества. Лишайники широко используются в качестве биоиндикаторов не только антропогенного загрязнения, но и значимых природных процессов, к примеру, локального или глобального атмосферных переносов и биогеохимических процессов перераспределения элементов.Цель: определить содержания микро- и макроэлементов (Mg, Al, Si, P, K, Ca, Ti, V, Cr, Fe, Co,

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Kłos, Andrzej, Yulia A. Aleksiayenak, Zbigniew Ziembik, et al. "THE USE OF NEUTRON ACTIVATION ANALYSIS IN THE BIOMONITORING OF TRACE ELEMENT DEPOSITION IN THE OPOLE PROVINCE." Ecological Chemistry and Engineering S 20, no. 4 (2013): 677–87. http://dx.doi.org/10.2478/eces-2013-0046.

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Abstract The neutron activation analysis procedure was used to determine the concentration of 42 elements: Na, Mg, Al, Cl, K, Ca, Sc, V, Cr, Mn, Fe, Ni, Co, Zn, As, Se, Br, Rb, Sr, Zr, Nb, Mo, I, Ag, Cd, Sb, Ba, Cs, La, Ce, Nd, Sm, Eu, Tb, Yb, Hf, Ta, W, Au, Hg, Th, and U accumulated in mosses sampled for testing in September and October 2011 in the Opole Province (Southern Poland). Samples of different moss species were collected near the intersections of the grid lines marked on the map of the province. The distance between the points was approximately 20 km. The analysis of the results made

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ABOLLINO, ORNELLA, MAURIZIO ACETO, SANDRO BUOSO, et al. "Distribution of major, minor and trace elements in lake environments of Antarctica." Antarctic Science 16, no. 3 (2004): 277–91. http://dx.doi.org/10.1017/s0954102004002111.

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The concentrations of major, minor and trace metals were measured in water samples collected from five shallow Antarctic lakes (Carezza, Edmonson Point (No 14 and 15a), Inexpressible Island and Tarn Flat) found in Terra Nova Bay (northern Victoria Land, Antarctica) during the Italian Expeditions of 1993-2001. The total concentrations of a large suite of elements (Al, As, Ba, Ca, Cd, Ce, Co, Cr, Cs, Cu, Fe, Ga, Gd, K, La, Li, Mg, Mn, Mo, Na, Nd, Ni, Pb, Pr, Rb, Sc, Si, Sr, Ta, Ti, U, V, Y, W, Zn and Zr) were determined using spectroscopic techniques (ICP-AES, GF-AAS and ICP-MS). The results are

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Alla Kapelian, Kirill Tkachenko, and Elizaveta Varfolomeeva. "Search for Toxic Trace Elements in Rosa rugosa Thunb. By Instrumental Neutron Activation Analysis: Accumulation and Responses to Exposure." Journal of Agriculture and Crops, no. 94 (September 29, 2023): 503–13. http://dx.doi.org/10.32861/jac.94.503.513.

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Species of the genus Rosa L. are widely used in urban gardening, and they are of considerable interest as plants accumulating heavy metals in an urban environment. Literature data are ambiguous about whether these species accumulate trace and toxic elements. Its fruits are used as medicinal raw materials in folk and official medicine. The purpose of the study is to determine whether this type of wild rose accumulates toxic metals (as well as various macro- and microelements), if so, which ones and in which organs, and to what extent raw materials of the plant can be used. For the first time, m

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Zinicovscaia, Inga, Rodica Sturza, Octavian Duliu, et al. "Major and Trace Elements in Moldavian Orchard Soil and Fruits: Assessment of Anthropogenic Contamination." International Journal of Environmental Research and Public Health 17, no. 19 (2020): 7112. http://dx.doi.org/10.3390/ijerph17197112.

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The correct assessment of the presence of potentially contaminating elements in soil, as well as in fruits cultivated and harvested from the same places has major importance for both the environment and human health. To address this task, in the case of the Republic of Moldova where the fruit production has a significant contribution to the gross domestic product, the mass fractions of 37 elements (Na, Mg, Al, Ca, Si, K, Mn, Fe, Sc, Ti, V, Cr, Co, Ni, Zn, As, Br, Rb, Sr, Zr, Mo, Cd, Sb, Cs, Ba, La, Ce, Nd, Sm, Eu, Tb, Yb, Hf, Ta, W, Th, and U) were determined by instrumental neutron activation

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Zeng, Zhijie, Uzair Siddique, Miaojun Sun, et al. "The Mineral Chemistry of Magnetite and Its Constraints on Ore-Forming Mechanism in the Sandaozhuang Skarn-Type W-Mo Deposit in East Qinling, China." Minerals 13, no. 8 (2023): 1091. http://dx.doi.org/10.3390/min13081091.

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The Sandaozhuang super-large W-Mo deposit is located in the southern margin of the North China Craton, within the well-known East Qinling Mo mineralization belt, and is one of the typical skarn-type W-Mo deposits in China. Based on EMPA and LA-ICP-MS analyses, major and trace elements were presented, and the mineral chemistry of magnetite at various mineralization stages was discussed. Combining field observations, petrography, and geochemical characteristics, the magnetite at the Sandaozhuang deposit can be classified into three types, namely early-magmatic-stage high-temperature magnetite (M

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Zeyle, Lyubov' Andreyevna, Ivan Viktorovich Novikov, Elena Vasilievna Petrova, and Evgenia Sergeevna Rabcevich. "ELEMENTAL COMPOSITION OF CHAGA MUSHROOM (INONOTUS OBLIQUUS)." chemistry of plant raw material, no. 1 (March 10, 2022): 251–60. http://dx.doi.org/10.14258/jcprm.2022019738.

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Birch chaga Inonotus obliquus is used as a component of many medicines. This is due to the versatile therapeutic effect associated with the content of a large number of biologically active substances of inorganic, organometallic and organic nature, a high content of macro- and microelements both in a free state and in the form of chelate complexes. To establish the qualitative and quantitative elemental composition of birch chaga, highly sensitive physicochemical methods of analysis were used, such as atomic emission spectroscopy (AES), inductively coupled plasma mass spectrometry (ICP-MS), an

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