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Статті в журналах з теми "Metals at high temperature"

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Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 29 січня 2023

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1

Gariboldi, Elisabetta, and Stefano Spigarelli. "High-Temperature Behavior of Metals." Metals 11, no. 7 (July 16, 2021): 1128. http://dx.doi.org/10.3390/met11071128.

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The design of new alloys as well as the optimization of processes involving whichever form of high-temperature deformation cannot disregard the characterization and/or modelling of the high-temperature structural response of the material [...]

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2

Lee, Kee-Ahn, Jae-Sung Oh, Young-Min Kong, and Byoung-Kee Kim. "Manufacturing And High Temperature Oxidation Properties Of Electro-Sprayed Fe-24.5% Cr-5%Al Powder Porous Metal." Archives of Metallurgy and Materials 60, no. 2 (June 1, 2015): 1169–73. http://dx.doi.org/10.1515/amm-2015-0091.

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Abstract Fe-Cr-Al based Powder porous metals were manufactured using a new electro-spray process, and the microstructures and high-temperature oxidation properties were examined. The porous materials were obtained at different sintering temperatures (1350°C, 1400°C, 1450°C, and 1500°)C and with different pore sizes (500 μm, 450 μm, and 200 μm). High-temperature oxidation experiments (TGA, Thermal Gravimetry Analysis) were conducted for 24 hours at 1000°C in a 79% N2+ 21% O2, 100 mL/min. atmosphere. The Fe-Cr-Al powder porous metals manufactured through the electro-spray process showed more-excellent oxidation resistance as sintering temperature and pore size increased. In addition, the fact that the densities and surface areas of the abovementioned powder porous metals had the largest effects on the metal’s oxidation properties could be identified.

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3

Meilikhov, E. Z. "High-temperature conduction of granular metals." Journal of Experimental and Theoretical Physics 93, no. 3 (September 2001): 625–29. http://dx.doi.org/10.1134/1.1410608.

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4

Stott, F. H. "High-temperature sliding wear of metals." Tribology International 35, no. 8 (August 2002): 489–95. http://dx.doi.org/10.1016/s0301-679x(02)00041-5.

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5

Filippov, E. S. "High-Temperature Structure Formation in Metals." Russian Physics Journal 56, no. 12 (April 2014): 1333–38. http://dx.doi.org/10.1007/s11182-014-0183-0.

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6

Maruyama, Toshio. "High Temperature Oxidation of Metals (1)." Zairyo-to-Kankyo 44, no. 6 (1995): 370. http://dx.doi.org/10.3323/jcorr1991.44.370.

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7

Maruyama, Toshio. "High Temperature Oxidation of Metals (3)." Zairyo-to-Kankyo 45, no. 8 (1996): 495–98. http://dx.doi.org/10.3323/jcorr1991.45.495.

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8

Kraftmakher, Yaakov. "High-temperature specific heat of metals." European Journal of Physics 15, no. 6 (November 1, 1994): 329–34. http://dx.doi.org/10.1088/0143-0807/15/6/010.

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9

Sunko, D. K. "High-Temperature Superconductors as Ionic Metals." Journal of Superconductivity and Novel Magnetism 33, no. 1 (October 2, 2019): 27–33. http://dx.doi.org/10.1007/s10948-019-05280-9.

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10

Schwarz, Ulrich. "High-pressure high-temperature synthesis of new covalent metals." Acta Crystallographica Section A Foundations and Advances 71, a1 (August 23, 2015): s77—s78. http://dx.doi.org/10.1107/s205327331509885x.

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11

Pottlacher, G. "High-pressure, high-temperature thermophysical measurements on liquid metals." High Pressure Research 10, no. 1-2 (May 1992): 450–53. http://dx.doi.org/10.1080/08957959208201454.

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12

Agarwala, R. P., and D. D. Pruthi. "High Temperature Diffusion Mechanism in bcc Metals." Defect and Diffusion Forum 66-69 (January 1991): 365–70. http://dx.doi.org/10.4028/www.scientific.net/ddf.66-69.365.

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13

Lin, Chia Chen, Ren Kae Shiue, and Hsiou Jeng Shy. "Joining Refractory Metals for High-Temperature Applications." Advanced Materials Research 538-541 (June 2012): 1541–44. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.1541.

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Brazing Mo/Mo and Mo/porous W using 60Mo-40Ru in weight percent braze alloy are evaluated in the experiment. Sound Mo/60Mo-40Ru/Mo joint is obtained from brazing at 1970 and 2000 °C for 600 s, respectively. The brazed joints are comprised of σ and Mo-rich phases. For Mo/60Mo-40Ru/porous W joint, sound bonding is achieved only from brazing at 2000 °C for 600 s, and similar microstructure of the joint is obtained. The 60Mo-40Ru braze alloy shows potential in bonding refractory metal(s) for high-temperature applications.

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14

Pavlovskii, V. A. "Heat Resistant Coatings on High-Temperature Metals." Protection of Metals 40, no. 4 (July 2004): 358–61. http://dx.doi.org/10.1023/b:prom.0000036957.69794.8a.

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15

Singh, Raman, and Mahesh B. Venkataraman. "High Temperature Corrosion and Oxidation of Metals." Metals 9, no. 9 (August 28, 2019): 942. http://dx.doi.org/10.3390/met9090942.

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16

H�fner, S. "Are the high temperature superconductors real metals?" Zeitschrift f�r Physik B Condensed Matter 79, no. 2 (June 1990): 167–68. http://dx.doi.org/10.1007/bf01406578.

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17

Dong, Q., G. Hultquist, G. I. Sproule, and M. J. Graham. "Platinum-catalyzed high temperature oxidation of metals." Corrosion Science 49, no. 8 (August 2007): 3348–60. http://dx.doi.org/10.1016/j.corsci.2007.03.010.

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18

Arora, Harpreet Singh, and Sundeep Mukherjee. "High temperature mechanics of nanomoulded amorphous metals." Philosophical Magazine Letters 96, no. 10 (September 12, 2016): 383–91. http://dx.doi.org/10.1080/09500839.2016.1232492.

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19

Merker, Jürgen, and M. Koch. "Metals for High Temperature Applications under Extreme Conditions – Development and Testing." Materials Science Forum 783-786 (May 2014): 1165–70. http://dx.doi.org/10.4028/www.scientific.net/msf.783-786.1165.

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Анотація:

A lot of technical processes require metallic materials which are able to withstand very high temperatures under extreme conditions. Examples are applications in glass industry, space technology and crystal growing. Application temperatures are in the range from 1100°C to 2300°C. Besides the extremely high temperature the materials are often influenced simultaneously by high mechanical loading and chemical attack. Due to their outstanding chemical stability, corrosion resistance and high mechanical strength the platinum group metals, in particular platinum, rhodium and iridium, are therefore ideal materials for high temperature use under extreme conditions. These metals are widely used in spite of their high prices. High temperature applications require high melting point metals, commonly strengthened by solid solution or oxide dispersion hardening. This paper reports e. g. on the development of oxide dispersion hardened platinum and platinum alloys manufactured by fusion technique. Furthermore the paper presents a comprehensive review of studies on platinum materials which facilitate the design of equipment used for high temperature applications under extreme conditions. Stress-rupture strength and creep behavior have been investigated in a temperature range between 1200°C and 2300°C. The results of the investigations can supply a basis to optimize materials selection for high temperature applications under extreme conditions.

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20

Jin, N. Y., F. Phillipp, and A. Seeger. "In-situ high-voltage Electron Microscopy of defect ordering under high-dose irradiation." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 4 (August 1990): 508–9. http://dx.doi.org/10.1017/s0424820100175673.

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High-dose irradiation of metals employing dpa values (= displacements per atom) substantially larger than unity may lead to ordered arrangements of defects at temperatures well below the temperature of void formation. We report on a systematic study of defect-ordering phenomena in three fcc metals with markedly different stacking-fault energies, viz. Cu, Ag, and Ni.5N-pure foils of Cu, Ag and Ni were prepared for in-situ electron microscopy in the conventional way. They were irradiated in an AEI-EM7 high-voltage electron microscope (HVEM) with lMeV electrons (e-) at various temperatures (Tirr) between 20 and 500K (Ag and Cu) or between 300 and 600K (Ni). The electron flux density and the total dose, Φ, were typically 7×l023e-m-2s-1 and 1x1027e-m-2, respectively. The development of the defect patter was investigated in the HVEM during the irradiation.In all three metals a temperature regime has been found in which visible defects are regularly arranged along <100> directions after a minimum dose of ∼1026 e-m-2 (Fig.l).

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21

Fischer, Bernd, Manuel Beschliesser, Andreas Hoffmann, and Stefan Vorberg. "Mechanical Properties of Refractory Metals at Extremely High Temperatures." Materials Science Forum 534-536 (January 2007): 1269–72. http://dx.doi.org/10.4028/www.scientific.net/msf.534-536.1269.

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Driven by the unavailibility of commercial test equipment for tensile and creep testing at temperatures up to 3000°C a measuring system has been developed and constructed at the University of Applied Sciences, Jena. These temperatures are reached with precision by heating samples directly by electric current. Contact-less strain measurements are carried out with image processing software utilizing a CCD camera system. This paper covers results of creep tests which have been conducted on TZM sheet material (thickness 2 mm) in the temperature range between 1200°C and 1600°C. It is the aim of this work to show the influence of heat-treatment conditions on creep performance in the investigated temperature range.

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22

Kostina, M. V., V. N. Skorobogatykh, T. V. Tykochinskaya, M. S. Nakhabina, V. V. Nemov, I. O. Bannykh, and A. E. Korneev. "Structure and properties of a high-temperature austenitic steel at high temperatures." Russian Metallurgy (Metally) 2010, no. 11 (November 2010): 1032–40. http://dx.doi.org/10.1134/s0036029510110078.

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23

Strogonov, Konstantin V., and Andrey A. Chaymelov. "Modeling the High-Temperature Heating of Scrap Metals." Vestnik MEI 6 (2019): 58–63. http://dx.doi.org/10.24160/1993-6982-2019-6-58-63.

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24

Murr, Lawrence E., and Shujun Li. "Electron-beam additive manufacturing of high-temperature metals." MRS Bulletin 41, no. 10 (October 2016): 752–57. http://dx.doi.org/10.1557/mrs.2016.210.

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25

Yoshinaga, Hideo. "High-Temperature Deformation Mechanisms in Metals and Alloys." Materials Transactions, JIM 34, no. 8 (1993): 635–45. http://dx.doi.org/10.2320/matertrans1989.34.635.

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26

Kiselev, A. I. "High-temperature phase transitions in rare-earth metals." Russian Metallurgy (Metally) 2010, no. 2 (February 2010): 133–36. http://dx.doi.org/10.1134/s0036029510020114.

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27

Maurice, Cl, J. H. Driver, and L. S. Tóth. "Modelling High Temperature Rolling Textures of FCC Metals." Textures and Microstructures 19, no. 4 (January 1, 1992): 211–27. http://dx.doi.org/10.1155/tsm.19.211.

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A partially relaxed constraints grain deformation model is proposed to explain the influence of temperature on the rolling textures of fcc metals. The effects of the grain plastic shear in the TD/RD plane and the role of the rate sensitivity of crystallographic slip on the evolution of the texture have been investigated by numerical simulations for a random initial texture. The rate sensitivity and the TD/RD shear are assumed to increase with temperature. The progression from the Copper {112}<111> component towards Brass {110}<112> and S {123}<634> type textures is predicted at higher values of the rate sensitivity and the TD/RD shear. These model predictions compare well with published hot rolling textures of aluminium alloys. The concept of grain shear partial relaxation has been validated by room and high temperature channel die tests on {110}<112> oriented Al crystals constrained between aluminium polycrystals.

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28

Evans, H. E. "Stress effects in high temperature oxidation of metals." International Materials Reviews 40, no. 1 (January 1995): 1–40. http://dx.doi.org/10.1179/imr.1995.40.1.1.

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29

Chou, T. C., and A. Joshi. "High temperature interfacial reactions of SiC with metals." Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 9, no. 3 (May 1991): 1525–34. http://dx.doi.org/10.1116/1.577673.

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30

Schulze, Klaus K., Hermann A. Jehn, and Gerhard Hörz. "High-Temperature Interactions off Refractory Metals with Gases." JOM 40, no. 10 (October 1988): 25–31. http://dx.doi.org/10.1007/bf03257980.

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31

Spałek, Jozef. "Introduction: Mott insulators, correlated metals, high-temperature superconductors." Journal of Solid State Chemistry 88, no. 1 (September 1990): 2–4. http://dx.doi.org/10.1016/0022-4596(90)90200-h.

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32

Chang, Y. N., and F. I. Wei. "High-temperature chlorine corrosion of metals and alloys." Journal of Materials Science 26, no. 14 (July 1991): 3693–98. http://dx.doi.org/10.1007/bf01184958.

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33

IHARA, Ikuo, and Dikky BURHAN. "Molten Metals Monitoring Using High temperature Ultrasonic Sensors." Proceedings of the Symposium on Evaluation and Diagnosis 2003.2 (2003): 97–100. http://dx.doi.org/10.1299/jsmesed.2003.2.97.

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34

Mei, J., and P. Xiao. "Joining metals to zirconia for high temperature applications." Scripta Materialia 40, no. 5 (February 1999): 587–94. http://dx.doi.org/10.1016/s1359-6462(98)00457-6.

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35

Gale, Thomas K., and Jost O. L. Wendt. "High-temperature interactions between multiple-metals and kaolinite." Combustion and Flame 131, no. 3 (November 2002): 299–307. http://dx.doi.org/10.1016/s0010-2180(02)00404-2.

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36

Gale, T. K., and J. O. L. Wendt. "High-temperature interactions between multiple-metals and kaolinite." Combustion and Flame 133, no. 3 (May 2003): 383. http://dx.doi.org/10.1016/s0010-2180(03)00004-x.

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37

Filippov, E. S. "Model of High Temperature Phase Transitions in Metals." Russian Physics Journal 58, no. 12 (April 2016): 1747–52. http://dx.doi.org/10.1007/s11182-016-0711-1.

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38

Mikrovas, A. C., and S. A. Argyropoulos. "Measurement of velocity in high-temperature liquid metals." Metallurgical and Materials Transactions B 25, no. 2 (April 1994): 313. http://dx.doi.org/10.1007/bf02665216.

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39

Geminov, V. N., and S. M. Barinov. "Prediction of high-temperature mechanical characteristics of metals." Strength of Materials 19, no. 8 (August 1987): 1059–62. http://dx.doi.org/10.1007/bf01523285.

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40

Kurishita, H., H. Yoshinaga, and H. Nakashima. "The high temperature deformation mechanism in pure metals." Acta Metallurgica 37, no. 2 (February 1989): 499–505. http://dx.doi.org/10.1016/0001-6160(89)90233-2.

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41

Varma, S. K. "Refractory metals—An exploration of high-temperature materials." JOM 62, no. 10 (October 2010): 12. http://dx.doi.org/10.1007/s11837-010-0147-y.

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42

Margolin, A. D., and V. S. Posvyanskii. "Critical conditions for high-temperature oxidation of metals." Combustion, Explosion, and Shock Waves 34, no. 4 (July 1998): 394–96. http://dx.doi.org/10.1007/bf02675605.

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43

Mikrovas, A. C., and S. A. Argyropoulos. "Measurement of velocity in high-temperature liquid metals." Metallurgical Transactions B 24, no. 6 (December 1993): 1009–22. http://dx.doi.org/10.1007/bf02660992.

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44

Zhang, Jun Zhe, Xiao Peng Wang, Bo Zhang, and Li Hong Zhang. "Experimental Study of Acoustic Performance of Porous Metals at High Temperatures." Materials Science Forum 933 (October 2018): 373–79. http://dx.doi.org/10.4028/www.scientific.net/msf.933.373.

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Based on an improved two-microphone transfer function method, a testing system for the exploration of acoustic performance of porous materials under high temperature conditions was developed with porous foam copper as one of research objects. The acoustic performances of some porous metallic materials were studied in the temperature range of 300°C to 700°C under the premise of ensuring the temperature stability that makes the measurement uncertainty be ± 6°C at high temperatures. The sound absorption coefficient and the acoustic impedance ratio of porous coppers at different ambient temperatures were acquired accordingly. And then the influence of the variation of temperature fields on the acoustic properties of porous metals was analyzed. The experimental results are in good agreement with the theoretical analysis, which proves the rationality of design of the device and provides important references and specific guidance for future study of the acoustic properties of porous metal materials.

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45

Pang, Wei Wei, Guang Cai Zhang, Ai Guo Xu, and Ping Zhang. "Dynamic Fracture of Ductile Metals at High Strain Rate." Advanced Materials Research 790 (September 2013): 65–68. http://dx.doi.org/10.4028/www.scientific.net/amr.790.65.

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Dynamic fracture of ductile metals at different strain rates and temperatures is studied via molecular dynamic simulations. The results show that both increase of temperature and decrease of strain rate reduce the yield strength, but the stress-strain curves separate prior to yield point at different temperatures. Both increase of temperature and strain rate shorten the duration of the stage of dislocation nucleation and slip. The stress-strain curves for various materials indicate that void nucleation needs not only lower yield strength but also lower fault energy. After the yield point, initially some defect clusters form along the loading direction. With the increasing of strain, small dislocation loops nucleate from some larger defect clusters, then quickly multiply and move on slip plane. When the stress exceeds a critical value, some voids nucleate in dislocation aggregation regions. The incipient void shapes are clavate and void distributions predominantly are along the perpendicular directions of tensile loading. Nucleated voids gradually grow into spherical-like shapes via emitting dislocations.

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46

White, CK. "Electrons in Transition Metals at High Temperatures." Australian Journal of Physics 46, no. 5 (1993): 707. http://dx.doi.org/10.1071/ph930707.

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At high temperatures kT may be large compared with the scale on which major changes in the electronic density of states occur near to the Fermi energy E F , particularly for the transition elements. Mott first discussed the qualitative effects of this 'smearing' of the Fermi edge on the electrical resistance and thermopower of Pt, Pd, W, etc. Later Shimizu and colleagues examined the correlations in high-temperature behaviour of different transport properties, electronic heat capacity and susceptibility. Since then improved data have become available, largely through the use of sub-second measuring techniques. Is it now possible to provide a quantitative theoretical framework?

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47

Morris, D. G., and M. A. Muñoz-Morris. "High temperature mechanical properties of iron aluminides." Revista de Metalurgia 37, no. 2 (April 30, 2001): 230–39. http://dx.doi.org/10.3989/revmetalm.2001.v37.i2.471.

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48

Önay, Bulent. "Oxidation Behavior of some Refractory Metals and Compounds." Materials Science Forum 696 (September 2011): 354–59. http://dx.doi.org/10.4028/www.scientific.net/msf.696.354.

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Анотація:

Engineering materials with better high temperature oxidation properties are needed to increase the thermodynamic efficiencies of the energy production and transportation systems. Because of their high melting temperatures, refractory metals like Nb or Mo are brought together with intermetallic compounds as two components of a new class of composite materials. To acquire a balanced high temperature mechanical and oxidation properties, these materials generally have multiphase and multicomponent structures. Borides of some transition elements are also being considered as high temperature structural materials for new aerospace vehicles. These materials are also required to have sufficient high temperature oxidation resistance in order to provide reliable and long service lives.

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49

Oh, Jae Sung, Seon Hui Lim, Sung Hwan Choi, Man Ho Park, and Kee Ahn Lee. "Effect of Pre-Oxidation on the High Temperature Oxidation Behavior of Fe-Cr-Al Powder Porous Metal." Advanced Materials Research 690-693 (May 2013): 294–97. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.294.

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This study investigated the effect of pre-oxidation on the high-temperature oxidation behavior of Fe-Cr-Al powder porous metal. Using the powder metallurgy process, Fe-Cr-Al powder porous metals with and without pre-oxidation were manufactured. 24-hour TGA tests were conducted at three different temperatures: 900°C, 1000°C, and 1100°C. The high temperature oxidation results showed that pre-oxidized powder porous metal had even higher levels of oxidation resistance compared to that of porous metal without pre-oxidation regardless of the oxidation temperature. The weight gain of pre-oxidized porous metal (0.123%) was lowest at oxidation temperature of 900°C. In contrast, the weight gain of porous metals significantly increased at 1100°C. In the porous metals 900°C and 1000°C oxidized specimen, oxides such as Al2O3and Cr2O3were mainly observed. Porous metals oxidation specimen at 1100°C also revealed the presence of Fe-based oxides in large quantities in addition to the oxides formed at lower temperature.

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50

Pieńkos, Tomasz, Stanisław Hałas, and Maciej Czarnacki. "High temperature resistivity determination of high-melting point metals and alloys." Vacuum 85, no. 4 (October 2010): 498–501. http://dx.doi.org/10.1016/j.vacuum.2010.01.020.

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