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Articoli di riviste sul tema "Metallurgy"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 31 agosto 2024

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1

Harris, J. "Engineering metallurgy: Part 1 Applied physical metallurgy". International Materials Reviews 39, n. 5 (gennaio 1994): 213–14. http://dx.doi.org/10.1179/imr.1994.39.5.213.

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2

Skoromnaya, Stella. "Supercritical metallurgy". Bulletin of the National Technical University «KhPI» Series: New solutions in modern technologies, n. 1(3) (5 aprile 2020): 35–42. http://dx.doi.org/10.20998/2413-4295.2020.03.05.

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3

Hueckel, Theodore, e Stefano Sacanna. "Colloidal metallurgy". Nature Chemistry 13, n. 6 (giugno 2021): 514–15. http://dx.doi.org/10.1038/s41557-021-00723-0.

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4

ONOUE, Toshio. "Vacuum metallurgy." SHINKU 30, n. 12 (1987): 1024–26. http://dx.doi.org/10.3131/jvsj.30.1024.

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5

Ball, Philip. "Stellar metallurgy". Nature Materials 13, n. 5 (22 aprile 2014): 431. http://dx.doi.org/10.1038/nmat3954.

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6

LABRUM, D. "POWDER METALLURGY". Journal of the American Society for Naval Engineers 62, n. 1 (18 marzo 2009): 63–98. http://dx.doi.org/10.1111/j.1559-3584.1950.tb02679.x.

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7

Haasen, Peter, e J. M. Galligan. "Physical Metallurgy". Journal of Engineering Materials and Technology 109, n. 2 (1 aprile 1987): 176. http://dx.doi.org/10.1115/1.3225960.

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8

Harris, Jack, John W. Martin e Edward A. Little. "‘Physical metallurgy’". Materials Science and Technology 13, n. 8 (agosto 1997): 705–6. http://dx.doi.org/10.1179/mst.1997.13.8.705.

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9

Eberhart, M. "Computational Metallurgy". Science 265, n. 5170 (15 luglio 1994): 332–33. http://dx.doi.org/10.1126/science.265.5170.332.

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J. Raub, Christoph. "Physical metallurgy". Journal of Alloys and Compounds 261, n. 1-2 (settembre 1997): 313. http://dx.doi.org/10.1016/s0925-8388(97)00183-7.

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RITTER, STEVE. "BEAKER METALLURGY". Chemical & Engineering News Archive 83, n. 20 (16 maggio 2005): 11. http://dx.doi.org/10.1021/cen-v083n020.p011.

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12

Heimala, Seppo. "Extraction metallurgy". International Journal of Mineral Processing 35, n. 1-2 (giugno 1992): 147–48. http://dx.doi.org/10.1016/0301-7516(92)90010-t.

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13

Sacks, Oliver. "Sports metallurgy". New Scientist 215, n. 2876 (agosto 2012): 30. http://dx.doi.org/10.1016/s0262-4079(12)62011-9.

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14

Nickels, Liz. "Crowdfunding metallurgy". Metal Powder Report 71, n. 5 (settembre 2016): 324–27. http://dx.doi.org/10.1016/j.mprp.2015.10.006.

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15

Zhang, Yanling, Guoguang Cheng e Zhonghua Zhan. "Inclusion Metallurgy". Metals 13, n. 5 (23 aprile 2023): 827. http://dx.doi.org/10.3390/met13050827.

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16

Thornber, Mike R. "Process metallurgy, vol. 8. Extractive metallurgy of vanadium". International Journal of Mineral Processing 38, n. 1-2 (maggio 1993): 153–54. http://dx.doi.org/10.1016/0301-7516(93)90071-h.

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17

ONISHI, Masami, Yoshinori WAKAMATSU e Toshitada SHIMOZAKI. "Metallurgy on Galvannealing". Tetsu-to-Hagane 80, n. 6 (1994): 446–50. http://dx.doi.org/10.2355/tetsutohagane1955.80.6_446.

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18

Rashev, Ts V., L. Ts Zhekova e P. V. Bogev. "Metallurgy under pressure". Steel in Translation 47, n. 1 (gennaio 2017): 26–31. http://dx.doi.org/10.3103/s0967091217010132.

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19

Bahrani, Zainab. "Metallurgy and Civilization". West 86th: A Journal of Decorative Arts, Design History, and Material Culture 28, n. 2 (1 settembre 2021): 191–96. http://dx.doi.org/10.1086/721198.

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20

Gallino, Isabella, e Ralf Busch. "Metallurgy Beyond Iron". Publications of the Astronomical Society of Australia 26, n. 3 (2009): iii—vii. http://dx.doi.org/10.1071/as08073.

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Abstract (sommario):
AbstractMetallurgy is one of the oldest sciences. Its history can be traced back to 6000 BCE with the discovery of Gold, and each new discovery — Copper, Silver, Lead, Tin, Iron and Mercury — marked the beginning of a new era of civilization. Currently there are 86 known metals, but until the end of the 17th century, only 12 of these were known. Steel (Fe–C alloy) was discovered in the 11th century BCE; however, it took until 1709 CE before we mastered the smelting of pig-iron by using coke instead of charcoal and started the industrial revolution. The metallurgy of nowadays is mainly about discovering better materials with superior properties to fulfil the increasing demand of the global market. Promising are the Glassy Metals or Bulk Metallic Glasses (BMGs) — discovered at first in the late 50s at the California Institute of Technology — which are several times stronger than the best industrial steels and 10-times springier. The unusual structure that lacks crystalline grains makes BMGs so promising. They have a liquid-like structure that means they melt at lower temperatures, can be moulded nearly as easily as plastics, and can be shaped into features just 10 nm across. The best BMG formers are based on Zr, Pd, Pt, Ca, Au and, recently discovered, also Fe. They have typically three to five components with large atomic size mismatch and a composition close to a deep eutectic. Packing in such liquids is very dense, with a low content of free volume, resulting in viscosities that are several orders of magnitude higher than in pure metal melts.
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21

Ball, Philip. "Cutting-edge metallurgy". Nature Materials 13, n. 8 (23 luglio 2014): 771. http://dx.doi.org/10.1038/nmat4047.

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22

Plummer, John. "Metallurgy is key". Nature Materials 15, n. 7 (22 giugno 2016): 699–700. http://dx.doi.org/10.1038/nmat4657.

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23

Greenwood, G. W. "Modern physical metallurgy". International Materials Reviews 30, n. 1 (gennaio 1985): 302. http://dx.doi.org/10.1179/imr.1985.30.1.302.

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Greenwood, G. W. "Modern physical metallurgy". British Corrosion Journal 20, n. 3 (gennaio 1985): 104. http://dx.doi.org/10.1179/000705985798272803.

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25

Peng, Zhiwei, e Jiann-Yang Hwang. "Microwave-assisted metallurgy". International Materials Reviews 60, n. 1 (22 agosto 2014): 30–63. http://dx.doi.org/10.1179/1743280414y.0000000042.

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26

Hildeman, Gregory J., e Michael J. Koczak. "Aluminum Powder Metallurgy". JOM 38, n. 8 (agosto 1986): 30–32. http://dx.doi.org/10.1007/bf03257784.

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27

Doyle, F. M. "Extraction metallurgy '85". International Journal of Mineral Processing 23, n. 1-2 (maggio 1988): 157–59. http://dx.doi.org/10.1016/0301-7516(88)90011-7.

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28

Jarvis, David John, e O. Minster. "Metallurgy in Space". Materials Science Forum 508 (marzo 2006): 1–18. http://dx.doi.org/10.4028/www.scientific.net/msf.508.1.

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Abstract (sommario):
Over the past five years, an application-oriented research strategy has been initiated by ESA to permit valuable microgravity research in a broad range of physical sciences. The main objective is to integrate ESA, national activities and industry into an overall European strategy, which will allow research to be performed aboard the International Space Station (ISS), as well as other microgravity platforms, like unmanned space capsules, sounding rockets and parabolic flights. A key area of microgravity research is centred on metallurgy in space. The principal aims of this research field are (i) to investigate various physical phenomena during solidification processes and (ii) to determine the thermophysical properties of important liquid alloys. A number of metallurgical sub-topics have been identified in the ESA research programme, including the columnar-to-equiaxed transition during solidification; metastable and non-equilibrium solidification; multiphase multicomponent alloy solidification; eutectic, peritectic, monotectic and intermetallic alloy growth; fluid flow effects on mushy zone formation; and the measurement of thermophysical properties of liquid alloys. This review paper will therefore highlight the theoretical, experimental and modelling efforts currently being undertaken in the ESA programme.
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29

Kryachek, V. M., D. A. Levina e L. I. Chernyshev. "Powder metallurgy abroad". Powder Metallurgy and Metal Ceramics 46, n. 7-8 (luglio 2007): 408–13. http://dx.doi.org/10.1007/s11106-007-0064-y.

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30

Bunk, Wolfgang G. J. "Aluminium RS metallurgy". Materials Science and Engineering: A 134 (marzo 1991): 1087–97. http://dx.doi.org/10.1016/0921-5093(91)90931-c.

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31

Warner, N. A. "Extraction metallurgy '89". Minerals Engineering 2, n. 3 (gennaio 1989): 437. http://dx.doi.org/10.1016/0892-6875(89)90015-0.

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32

Barley, R. W. "Extraction Metallurgy '89". Minerals Engineering 2, n. 4 (gennaio 1989): 569–72. http://dx.doi.org/10.1016/0892-6875(89)90091-5.

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33

CANE, B. "Metallurgy service expands". International Journal of Fatigue 11, n. 2 (marzo 1989): 135. http://dx.doi.org/10.1016/0142-1123(89)90012-1.

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34

Peng, Zhiwei, Dean Gregurek e Christine Wenzl. "Sustainability in Metallurgy". JOM 67, n. 9 (31 luglio 2015): 1931–32. http://dx.doi.org/10.1007/s11837-015-1551-0.

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35

Peng, Zhiwei, e Jesse F. White. "Field-Intensified Metallurgy". JOM 69, n. 12 (24 ottobre 2017): 2658–59. http://dx.doi.org/10.1007/s11837-017-2622-1.

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36

Skrabec, Quentin R. "Dining Metallurgy 101". AM&P Technical Articles 180, n. 7 (1 ottobre 2022): 24–26. http://dx.doi.org/10.31399/asm.amp.2022-07.p024.

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37

Yukhvid, V. I. "SHS-Metallurgy: Fundamental and Applied Research". Advanced materials and technologies, n. 4 (2016): 023–34. http://dx.doi.org/10.17277/amt.2016.04.pp.023-034.

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38

Torralba, José M., e Mónica Campos. "Toward high performance in Powder Metallurgy". Revista de Metalurgia 50, n. 2 (25 giugno 2014): e017. http://dx.doi.org/10.3989/revmetalm.017.

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39

Doncheva, Stella. "ANCIENT METALLURGY IN THE BULGARIAN LANDS". Journal Scientific and Applied Research 24, n. 1 (23 novembre 2023): 65–72. http://dx.doi.org/10.46687/jsar.v24i1.369.

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Abstract (sommario):
Ancient metallurgy is a broad concept and is associated both with mining and metalworking, and in many cases is evidence of their existence. Data on metalworking are indirect evidence of the development of mining. Metal implements, weapons, and ornaments were the most mobile material, and metal and its articles were one of the main objects of ancient barter. The development of metallurgy became one of the main drivers of economic life during different historical eras, and the territory of Bulgaria is no exception, but on the contrary, it is one of the places where this activity originated and developed for centuries.
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40

Wan, Fang, Jizu Li, Yunfei Han e Xilong Yao. "Research of the Impact of Hydrogen Metallurgy Technology on the Reduction of the Chinese Steel Industry’s Carbon Dioxide Emissions". Sustainability 16, n. 5 (22 febbraio 2024): 1814. http://dx.doi.org/10.3390/su16051814.

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Abstract (sommario):
The steel industry, which relies heavily on primary energy, is one of the industries with the highest CO2 emissions in China. It is urgent for the industry to identify ways to embark on the path to “green steel”. Hydrogen metallurgy technology uses hydrogen as a reducing agent, and its use is an important way to reduce CO2 emissions from long-term steelmaking and ensure the green and sustainable development of the steel industry. Previous research has demonstrated the feasibility and emission reduction effects of hydrogen metallurgy technology; however, further research is needed to dynamically analyze the overall impact of the large-scale development of hydrogen metallurgy technology on future CO2 emissions from the steel industry. This article selects the integrated MARKAL-EFOM system (TIMES) model as its analysis model, constructs a China steel industry hydrogen metallurgy model (TIMES-CSHM), and analyzes the resulting impact of hydrogen metallurgy technology on CO2 emissions. The results indicate that in the business-as-usual scenario (BAU scenario), applying hydrogen metallurgy technology in the period from 2020 to 2050 is expected to reduce emissions by 203 million tons, and make an average 39.85% contribution to reducing the steel industry’s CO2 emissions. In the carbon emission reduction scenario, applying hydrogen metallurgy technology in the period from 2020 to 2050 is expected to reduce emissions by 353 million tons, contributing an average of 41.32% to steel industry CO2 reduction. This study provides an assessment of how hydrogen metallurgy can reduce CO2 emissions in the steel industry, and also provides a reference for the development of hydrogen metallurgy technology.
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41

Jovanović, Milan T., Višeslava Rajković e Ivana Cvijović-Alagić. "Copper alloys with improved properties: standard ingot metallurgy vs. powder metallurgy". Metallurgical and Materials Engineering 20, n. 3 (30 settembre 2014): 207–16. http://dx.doi.org/10.5937/metmateng1403207j.

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Three copper-based alloys: two composites reinforced with Al2O3 particles and processed through powder metallurgy (P/M) route, i.e. by internal oxidation (Cu-2.5Al composite) and by mechanical alloying (Cu-4.7Al2O3 ) and Cu-0.4Cr-0.08Zr alloy produced by ingot metallurgy (vacuum melting and casting) were the object of this investigation. Light microscope and scanning electron microscope (SEM) equipped with electron X-ray spectrometer (EDS) were used for microstructural characterization. Microhardness and electrical conductivity were also measured. Compared to composite materials, Cu-0.4Cr-0.08Zr alloy possesses highest electrical conductivity in the range from 20 to 800 ℃, whereas the lowest conductivity shows composite Cu-2.5Al processed by internal oxidation. In spite to somewhat lower electrical conductivity (probably due to inadequate density), Cu-2.5Al composite exhibits thermal stability enabling its application at much higher temperatures than materials processed by mechanical alloying or by vacuum melting and casting.
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42

Hou, Ming Shan, Shi Qi Li, Rong Zhu, Run Zao Liu e Yu Gang Wang. "Experiment Research of Non-Carbon Metallurgy with Clean Energy". Advanced Materials Research 803 (settembre 2013): 355–62. http://dx.doi.org/10.4028/www.scientific.net/amr.803.355.

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Experiment research on non-carbon metallurgy was explored, which contained three parts: smelting in high temperature, electrolytic iron and hydrogen reduction. A complete set of non carbon metallurgy system should include four technical units: power generation, electric power storage, control module, metallurgy unit. Energy and high temperature over 1600°C can be offered by technology on non-carbon metallurgy, electron also can be offered for hydrogen reduction and electrolysis. Technological parameters and results of three kind experiments were analysed and discussed, the feasibility of this technology and processes were proved.
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43

Kantoríková, Elena. "Materiály práškovej metalurgie". Technológ 16, n. 1 (2024): 16–19. http://dx.doi.org/10.26552/tech.c.2024.1.1.

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Powder metallurgy is used in all branches of industrial production. the main advantage of powder metallurgy is the saving of metals (materials) and energy. the main direction of development is expected mainly in the production of tool parts. the article describes the analysis of powders and the use of materials for powder metallurgy.
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44

Zhengxian, Li, Zhao Wen, Ji Shouchang, Xu Zhong e Zhou Lian. "Research Progress and Trend of Plasma Metallurgy on Titanium Metallic Surface". MATEC Web of Conferences 321 (2020): 06007. http://dx.doi.org/10.1051/matecconf/202032106007.

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By using vacuum plasma surface metallurgy technology, Chinese scientists have carried out comprehensive research on improving the wear resistance, corrosion resistance and flame retardancy of titanium metal. In this paper, the latest research results of alloy layer formation on titanium surface by plasma metallurgy technology and the development trend of plasma metallurgy technology on titanium surface are summarized.
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45

Kim, Hyunjung, Hongbo Zhao e Sadia Ilyas. "Editorial on Special Issue “Surface Chemistry in Mineral Processing and Extractive Metallurgy”". Minerals 11, n. 1 (25 dicembre 2020): 13. http://dx.doi.org/10.3390/min11010013.

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46

Vlasova, N. V., L. M. Masyagutova, E. R. Abdrakhmanova, L. A. Rafikova e G. M. Chudnovets. "К оценке индекса накопления цитогенетических нарушений при воздействии ком-плекса неблагоприятных производственных факторов на организм металлургов". Health Risk Analysis, n. 4 (dicembre 2022): 117–23. http://dx.doi.org/10.21668/health.risk/2022.4.11.

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Metallurgy is a major economic branch in Russia with more than 4000 enterprises operating in it and seventy percent of them being city-forming ones. This study focuses on cytological assessment of the oral mucosa and secretion from the middle meatus mucosa in workers employed in metallurgy. The aim of this study was to investigate cytological laboratory indicators in workers employed in metallurgy under exposure to adverse occupational factors. A clinical and diagnostic examination of workers employed at a metallurgical plant in Bashkortostan was performed in 2019–2020; it involved cytological studies of the oral mucosa (buccal epithelium) and the middle meatus mucosa (rhinocytogram). In this study, we applied the Index of cytogenetic disorders accumulation (Iac) that allows for cellular kinetics indicators. The overall hygienic assessment of working conditions for workers employed at the analyzed metallurgic plant corresponds to the hazard category 3.2–3.3 in accordance with the criteria outlined in the Guide R (harmful, class 2 or 3). The research results revealed cytogenetic disorders of buccal epithelial cells in the workers who had contacts with adverse occupational factors. Low likelihood of cytogenetic disorders was established for 66.67 % of the workers; moderate, 9.2 %; high, 23.81 %. We assessed rhinocytograms of the workers exposed to adverse occupational factors and revealed some signs of allergic inflammation characterized with high eosinophil count. The research results confirm high significance of diagnostic procedures for developing an algorithm for screening examinations of working population as well as indicators of health disorders under exposure to adverse occupational factors (noise, heating microclimate, industrial dust, gaseous chemicals).
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47

Vlasova, N. V., L. M. Masyagutova, E. R. Abdrakhmanova, L. A. Rafikova e G. M. Chudnovets. "Assessing index of accumulated cytogenetic disorders in workers employed in metallurgy under exposure to adverse occupaitonal factors". Health Risk Analysis, n. 4 (dicembre 2022): 117–23. http://dx.doi.org/10.21668/health.risk/2022.4.11.eng.

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Abstract (sommario):
Metallurgy is a major economic branch in Russia with more than 4000 enterprises operating in it and seventy percent of them being city-forming ones. This study focuses on cytological assessment of the oral mucosa and secretion from the middle meatus mucosa in workers employed in metallurgy. The aim of this study was to investigate cytological laboratory indicators in workers employed in metallurgy under exposure to adverse occupational factors. A clinical and diagnostic examination of workers employed at a metallurgical plant in Bashkortostan was performed in 2019–2020; it involved cytological studies of the oral mucosa (buccal epithelium) and the middle meatus mucosa (rhinocytogram). In this study, we applied the Index of cytogenetic disorders accumulation (Iac) that allows for cellular kinetics indicators. The overall hygienic assessment of working conditions for workers employed at the analyzed metallurgic plant corresponds to the hazard category 3.2–3.3 in accordance with the criteria outlined in the Guide R (harmful, class 2 or 3). The research results revealed cytogenetic disorders of buccal epithelial cells in the workers who had contacts with adverse occupational factors. Low likelihood of cytogenetic disorders was established for 66.67 % of the workers; moderate, 9.2 %; high, 23.81 %. We assessed rhinocytograms of the workers exposed to adverse occupational factors and revealed some signs of allergic inflammation characterized with high eosinophil count. The research results confirm high significance of diagnostic procedures for developing an algorithm for screening examinations of working population as well as indicators of health disorders under exposure to adverse occupational factors (noise, heating microclimate, industrial dust, gaseous chemicals).
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48

Abdi, Sadjad, e H. Khorsand. "Investigation and Comparison between Wear Properties of Powder Metallurgy (P/M) and Powder Forge (P/F) Product". Defect and Diffusion Forum 283-286 (marzo 2009): 111–16. http://dx.doi.org/10.4028/www.scientific.net/ddf.283-286.111.

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Abstract (sommario):
In recent years powder metallurgy method P/M because of complicated parts production ability is used widely, but existence of porosities in this products will decrease mechanical properties in this method, but advanced powder metallurgy methods like powder forging P/F with having profits of powder metallurgy P/M because of visible reduce in porosities will decrease powder metallurgy problems. One of the mechanical properties that is effected by the porosity is wear properties ,in this research by comparison between two groups of specimen, that first group made by powder metallurgy method that had 14% amount of porosities and second group that made by powder forge method P/F that had less than 1% amount of properties and change in wear parameters in both of groups we survey wear properties and we compare wear rate and mechanism result is showing visible relation between wear properties and amount and morphology of porosities.
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49

B. Aravinth, Geetha Arumugam e R. Mayildurai. "Fabrication of High Entropy Alloy by Powder Metallurgy Process". International Research Journal on Advanced Engineering Hub (IRJAEH) 2, n. 01 (30 gennaio 2024): 27–41. http://dx.doi.org/10.47392/irjaeh.2024.0005.i1.

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Abstract (sommario):
Recently, High entropy alloys have attracted a lot of interest because of their unique properties. which include outstanding strength, remarkable corrosion resistance, and consistent thermal stability. Powder metallurgy is one of the production procedures commonly used to manufacture these alloys. Metal powders are compacted and sintered to create a cohesive material in the production process known as powder metallurgy. The capacity to produce a fine-grained microstructure and a homogeneous distribution of various elements are two benefits of this technology for the synthesis of high entropy alloys. Moreover, powder metallurgy makes it possible to precisely combine various alloying constituents, which can improve the qualities of high entropy alloys even more. Powder metallurgy allows for the manufacture of intricate shapes and dimensions, rendering it well-suited to a range of uses. With the use of powder metallurgy, high entropy alloys can be fabricated with improved mechanical properties and enhanced performance.
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50

Molotilov, B. V., e P. I. Yugov. "Metallurgy of bearing steel". Steel in Translation 38, n. 7 (luglio 2008): 565–68. http://dx.doi.org/10.3103/s0967091208070176.

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