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Artículos de revistas sobre el tema "Diffusion in metals and alloys"

Autor: Grafiati

Publicado: 28 de mayo de 2022

Última modificación: 29 de mayo de 2022

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1

Mehrer, Helmut. "Diffusion in Quasi-Crystalline Alloys." Diffusion Foundations 9 (October 2016): 42–57. http://dx.doi.org/10.4028/www.scientific.net/df.9.42.

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In this Chapter, we review knowledge about diffusion in quasi-crystalline alloys (quasicrystals). In Section 1 we first remind the reader of some major aspects of the quasi-crystalline state and in Section 2 we introduce phase diagrams with quasi-crystalline phases, for which detailed diffusion studies are available. We mention in Section 3 the more common experimental methods for diffusion studies. The diffusive motion of atoms in quasi-crystalline alloys can be studied by the same techniques used for crystalline metallic alloys and intermetallics – measurements of radiotracer diffusion and d

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2

Würschum, R. "Diffusion in nanocrystalline metals and alloys." Revue de Métallurgie 96, no. 12 (1999): 1547–54. http://dx.doi.org/10.1051/metal/199996121547.

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3

Naundorf, Volkmar. "DIFFUSION IN METALS AND ALLOYS UNDER IRRADIATION." International Journal of Modern Physics B 06, no. 18 (1992): 2925–86. http://dx.doi.org/10.1142/s0217979292002310.

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Experimental investigations of the diffusion in crystalline metals and alloys under irradiation are reviewed emphasizing those experiments, in which atom transport was directly observed. Three types of results will be considered: (i) radiation-enhanced self- and impurity diffusion, (ii) segregation of components in homogeneous alloys, and (iii) the behaviour of thermodynamically (meta-) stable precipitates under the simultaneous action of radiation-enhanced diffusion and atomic mixing. The analysis of the experiments will be based on well known defect kinetics, using as fundamental parameters

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4

Gapontsev, Aleksei V., and Vladimir V. Kondrat'ev. "Hydrogen diffusion in disordered metals and alloys." Physics-Uspekhi 46, no. 10 (2003): 1077–98. http://dx.doi.org/10.1070/pu2003v046n10abeh001660.

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5

Gapontsev, Aleksei V., and Vladimir V. Kondrat'ev. "Hydrogen diffusion in disordered metals and alloys." Uspekhi Fizicheskih Nauk 173, no. 10 (2003): 1107. http://dx.doi.org/10.3367/ufnr.0173.200310c.1107.

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6

Xu, W., B. Zhang, X. Y. Li, and K. Lu. "Suppressing atomic diffusion with the Schwarz crystal structure in supersaturated Al–Mg alloys." Science 373, no. 6555 (2021): 683–87. http://dx.doi.org/10.1126/science.abh0700.

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High atomic diffusivity in metals enables substantial tuneability of their structure and properties by tailoring the diffusional processes, but this causes their customized properties to be unstable at elevated temperatures. Eliminating diffusive interfaces by fabricating single crystals or heavily alloying helps to address this issue but does not inhibit atomic diffusion at high homologous temperatures. We discovered that the Schwarz crystal structure was effective at suppressing atomic diffusion in a supersaturated aluminum–magnesium alloy with extremely fine grains. By forming these stable

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7

Koirala, R. P., I. Koirala, and D. Adhikari. "Energetics of mixing and transport phenomena in Cd-X (X=Pb, Sn) melts." BIBECHANA 15 (December 19, 2017): 113–20. http://dx.doi.org/10.3126/bibechana.v15i0.18751.

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We report a quasi-chemical study of the thermodynamic and transport properties of mixing of liquid Cd-Pb and Cd-Sn alloys at 773K. The interaction energy in the alloys is found to be positive which suggests homo-coordination of atoms in the alloys. The viscosities of the alloys at 773K computed from two different approaches exhibit non-linear concentration dependence with the results for Cd-Sn alloy being in very good agreement and satisfactory agreement for Cd-Pb alloy. In lower concentrations of Cd-component, Cd-Pb alloy has larger viscosity and on the other side of concentration, Cd-Sn allo

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8

Khalikov, Albert R., Evgeny A. Sharapov, Vener A. Valitov, Elvina V. Galieva, Elena A. Korznikova, and Sergey V. Dmitriev. "Simulation of Diffusion Bonding of Different Heat Resistant Nickel-Base Alloys." Computation 8, no. 4 (2020): 102. http://dx.doi.org/10.3390/computation8040102.

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Currently, an important fundamental problem of practical importance is the production of high-quality solid-phase compounds of various metals. This paper presents a theoretical model that allows one to study the diffusion process in nickel-base refractory alloys. As an example, a two-dimensional model of ternary alloy is considered to model diffusion bonding of the alloys with different compositions. The main idea is to divide the alloy components into three groups: (i) the base element Ni, (ii) the intermetallic forming elements Al and Ti and (iii) the alloying elements. This approach allows

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9

Kolobov, Yu R., Galina P. Grabovetskaya, K. Ivanov, M. A. Ivanov, and Evgeny V. Naydenkin. "Diffusion and Plasticity of Submicrocrystalline Metals and Alloys." Solid State Phenomena 94 (June 2003): 35–40. http://dx.doi.org/10.4028/www.scientific.net/ssp.94.35.

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10

Smirnov, E. A., and A. A. Shmakov. "Radiation Enhancement of Diffusion in Metals and Alloys." Defect and Diffusion Forum 194-199 (April 2001): 1451–56. http://dx.doi.org/10.4028/www.scientific.net/ddf.194-199.1451.

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11

Sharma, S. K., S. Banerjee, Kuldeep, and Animesh K. Jain. "Some correlations for diffusion in amorphous alloys." Journal of Materials Research 4, no. 3 (1989): 603–6. http://dx.doi.org/10.1557/jmr.1989.0603.

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Diffusion of several impurity atoms (Cu, Al, Au, and Sb) has been studied in Zr61Ni39 and Fe82B18 amorphous alloys. A definite correlation between the diffusion coefficient (D) and the atomic size of the diffusant is seen for the metal-metal (M–M) alloy, while it is not clear for the metal-metalloid (M–Me) alloy. Based on the present data, as well as other published data in binary amorphous alloys, empirical correlations have been found between (i) the activation energy (Q) and the energy required to form a hole of the size of the diffusing atom in the host alloy, and (ii) the pre-exponential

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12

Nazarov, Andrei V., Alexander Mikheev, Irina Valikova, and Alexander Zaluzhnyi. "Diffusion under a Stress in Metals and Interstitial Alloys." Solid State Phenomena 172-174 (June 2011): 1156–63. http://dx.doi.org/10.4028/www.scientific.net/ssp.172-174.1156.

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Elastic fields, generating by precipitates, cracks, dislocations and other defects of the structure, influence the diffusion processes. It leads to the alteration of the phase transformation kinetic, segregation formation and changes of the alloy properties. However, understanding the effects of strain on diffusion in solids is now limited. One of the chief aims of our approach is to obtain the general equations for the diffusion fluxes under strain that give the possibility of using these equations at low temperatures, as in this case, the strain influence on the diffusion fluxes is manifeste

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13

Gärtner, Daniel, Lisa Belkacemi, Vladimir A. Esin, et al. "Techniques of Tracer Diffusion Measurements in Metals, Alloys and Compounds." Diffusion Foundations 29 (April 2021): 31–73. http://dx.doi.org/10.4028/www.scientific.net/df.29.31.

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Tracer diffusion is one of most reliable techniques for providing basic kinetic data in solids. In the present review, selected direct methods, in particular the radiotracer measurements as a superior technique due to its high sensitivity, Secondary-Ion-Mass-Spectroscopy (SIMS) profiling, X-Ray Diffraction measurements and Rutherford Backscattering Spectrometry are presented and discussed. Special attention is put on the radiotracer technique describing the currently used sectioning techniques in detail with a focus on the experimental applications and complications. The relevant experimental

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14

Herzig, Christian, and U. Köhler. "Anomalous Self-Diffusion in BCC IVB Metals and Alloys." Materials Science Forum 15-18 (January 1987): 301–22. http://dx.doi.org/10.4028/www.scientific.net/msf.15-18.301.

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15

Würschum, R., S. Herth, and U. Brossmann. "Diffusion in Nanocrystalline Metals and Alloys—A Status Report." Advanced Engineering Materials 5, no. 5 (2003): 365–72. http://dx.doi.org/10.1002/adem.200310079.

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16

Haga, Toshio, and Rumi Nishikiori. "Production of Clad Metals Using the Melts-Kiss Method." Key Engineering Materials 783 (October 2018): 103–8. http://dx.doi.org/10.4028/www.scientific.net/kem.783.103.

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The melts-kiss method is proposed for producing clad metals made of aluminum alloys via casting. In this method, a molten metal is solidified by another molten metal. AA1050 and A383 alloys were used in experiments. The interface between the two aluminum alloys was clear. The width of the diffusion area of Si was very narrow. The two aluminum alloys were strongly bonded. The melts-kiss method can be adapted for semi-continuous casters to cast clad plates.

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17

Thirunavukarasu, Gopinath, Sukumar Kundu, and Subrata Chatterjee. "Metallurgists’ Insights on Diffusion-Assisted Dissimilar-Joints of Light- and Heavy-Alloys." Defect and Diffusion Forum 380 (November 2017): 12–28. http://dx.doi.org/10.4028/www.scientific.net/ddf.380.12.

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In metallurgy and materials engineering, a number of phase transformation in solids like precipitation, oxidation, creep, annealing, homogenization, etc. are brought about by the process of diffusion. Many industrial manufacturing processes utilize solid-state diffusion principle, to name a few: 1. Rotating or sliding parts of steel have a hard outside case for wear resistance and a tough inner core for fracture resistance by gas carburizing procedure; 2. Integrated circuits were produced by diffusing impurity into silicon wafers; and 3. Joints between similar and dissimilar metals, alloys, an

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18

Grandini, Carlos Roberto, Emerson Haruiti Kamimura, José Roberto Severino Martins, Hugo Ricardo Zschommler Sandim, and Odila Florêncio. "Diffusion of Nitrogen in Ti-13V-11Cr-3Al Alloys." Defect and Diffusion Forum 283-286 (March 2009): 38–44. http://dx.doi.org/10.4028/www.scientific.net/ddf.283-286.38.

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Metals with a bcc crystalline structure such as Ti-13V-11Cr-3Al alloys have their physical properties significantly changed through the addition of interstitial elements such as oxygen and nitrogen. These metals can dissolve substantial amounts of interstitial elements forming solid solutions. Mechanical spectroscopy measurements constitute a powerful tool for studying interactions of these interstitial elements with other elements that make up the alloy. From these measurements, it is possible to obtain information regarding diffusion, interstitial concentration, interaction between interstit

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19

Malomuzh, N. P., and V. N. Makhlaichuk. "Theory of Self-Diffusion in Liquid Metals." Russian Metallurgy (Metally) 2019, no. 8 (2019): 750–57. http://dx.doi.org/10.1134/s0036029519080111.

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20

Lee, Ho Sung, Jong Hoon Yoon, and Yeong Moo Yi. "Solid State Diffusion Bonding of Titanium Alloys." Solid State Phenomena 124-126 (June 2007): 1429–32. http://dx.doi.org/10.4028/www.scientific.net/ssp.124-126.1429.

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Solid State diffusion bonding is obtained by applying heat, well below the melting temperature of the metals, a static pressure which does not cause a macroscopic plastic deformation in the material, and a time required to form a metallurgical bond with atomic diffusion process. This process is used for aluminum alloys, high strength steels and titanium alloys in the aerospace industry to produce complex and inaccessible joints without localized distortion. Ability to diffusion bond titanium alloys is strongly needed to promote the use of superplastic forming technology. In the present work, t

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21

Poletaev, G. M., I. V. Zorya, R. Yu Rakitin, and M. D. Starostenkov. "Effect of light elements impurity atoms on grain boundary diffusion in FCC metals: a molecular dynamics simulation." Izvestiya. Ferrous Metallurgy 62, no. 12 (2020): 930–35. http://dx.doi.org/10.17073/0368-0797-2019-12-930-935.

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Effect of carbon and oxygen impurity atoms on diffusion along the tilt grain boundaries with <100> and <111> misorientation axis in metals with FCC lattice was studied by mean of molecular dynamics method. Ni, Ag, and Al were considered as metals. Interactions of metal atoms with each other were described by many-particle Clery-Rosato potentials constructed within the framework of tight binding model. To describe interactions of atoms of light elements impurities with metal atoms and atoms of impurities with each other, Morse pair potentials were used. According to obtained results

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22

Zhang, Yan, DeShui Yu, JianPing Zhou, and DaQian Sun. "A review of dissimilar welding for titanium alloys with light alloys." Metallurgical Research & Technology 118, no. 2 (2021): 213. http://dx.doi.org/10.1051/metal/2021011.

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Titanium (Ti) alloys are widely used in industrial manufacturing, medical treatment, vehicles, and other fields. When welded with other alloys, due to great differences in physical and chemical properties of these materials, cracks easily appear in the joint, and obtaining stable welded joints is difficult. Results show that brittle intermetallic compounds (IMCs) formed in the welding process could reduce the plasticity of the joint. This review aimed to provide a comprehensive overview of the recent progress in welding and joining of Ti alloy and light alloys and to introduce current research

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23

Wipf, H. "Solubility and Diffusion of Hydrogen in Pure Metals and Alloys." Physica Scripta T94, no. 1 (2001): 43. http://dx.doi.org/10.1238/physica.topical.094a00043.

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24

Mehrer, H. "Diffusion in Solid Metals and Alloys, Group III, Vol. 26." International Journal of Materials Research 84, no. 6 (1993): 380. http://dx.doi.org/10.1515/ijmr-1993-840603.

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25

Wang, Fuyue, Xiangjie Wang, Qiang Yan, and Jianzhong Cui. "Corrosion Behavior of TC4 Titanium Alloys in Al–Li Alloy Melt." Metals 11, no. 5 (2021): 794. http://dx.doi.org/10.3390/met11050794.

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The influences of Li content on the corrosion behavior of TC4 (Ti6Al4V) titanium alloy were explored when the TC4 titanium alloy was immersed in Al–Li alloy melt containing 0%, 1%, and 2% lithium at 680 °C, 700 °C, and 720 °C for 0.5 h, 1 h, and 2 h. The structure and growth law of the diffusion reaction layer at solid–liquid interface were studied, and the growth kinetic equation of the diffusion reaction layer was established. In addition, Ti content in Al–Li alloy melt was determined and its dissolution rate was calculated. The results showed that with the increase of lithium content in the

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26

Nikgolov, M. B., and E. S. Karakozov. "Diffusion bonding dissimilar titanium alloys." Welding International 4, no. 11 (1990): 883–86. http://dx.doi.org/10.1080/09507119009452201.

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27

Mikheev, A. A. "Diffusion bonding of magnetic alloys." Welding International 18, no. 11 (2004): 895–98. http://dx.doi.org/10.1533/wint.2004.3383.

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28

Nogueira, Renata Abdallah, and Carlos Roberto Grandini. "Oxygen Diffusion in Ti-20Mo Alloys, Used as Biomaterial, Measured by Mechanical Spectroscopy." Defect and Diffusion Forum 326-328 (April 2012): 702–7. http://dx.doi.org/10.4028/www.scientific.net/ddf.326-328.702.

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Titanium alloys are favorable implant materials for orthopedic applications, due to their desirable properties such as good corrosion resistance, low elasticity modulus, and excellent biocompatibility. The research on titanium alloys is concentrated in the β type, as the Ti-20Mo alloys and the addition of interstitial elements in these metals cause changes in their mechanical properties. The mechanical spectroscopy measurements have been frequently used in order to verify the behavior of these interstitials atoms in metallic alloys. This paper presents the study of oxygen diffusion in Ti-20Mo

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29

Beke, Dezső L., and Gábor Erdélyi. "On the Self - and Impurity Diffusion in High Entropy Alloys." Diffusion Foundations 17 (July 2018): 105–14. http://dx.doi.org/10.4028/www.scientific.net/df.17.105.

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General trends in self- and impurity diffusion data are analyzed in high entropy alloys. Our analysis is based on the similarity of inter-atomic potentials in metals, which is in fact equivalent to a three-parameter description of the system (the mass, m, the lattice spacing, a, and the melting point, Tm, are only used). This leads to the so-called law of corresponding states in metals, manifested in many empirical rules (e.g. compensation laws or the proportionality between the self-diffusion activation energy and the melting point) if one uses dimensionless/reduced variables (like the homolo

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30

Telejko, I., H. Adrian, and B. Guzik. "High Temperature Brittleness of Cast Alloys / Kruchosc Wysokotemperaturowa Stopów Odlewniczych." Archives of Metallurgy and Materials 58, no. 1 (2013): 83–87. http://dx.doi.org/10.2478/v10172-012-0155-8.

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Over-all mechanical properties of alloys are extremely low at the last stage of solidification where alloy exists at brittle temperature range (BTR). When the solidification process is completed a sudden and marked change in strength and ductility of metal is observed. It means that as long as liquid phase is present, metal will fail in a brittle manner. There are known different theories of brittleness of alloys in existence of liquid phase. The idea involved by authors of the paper is as follows: three major factors caused by presence of liquid may be taken into account: - decreasing the ene

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31

Grandini, Carlos Roberto, Luciano Henrique de Almeida, and Durval Rodrigues Júnior. "Oxygen Diffusion in an Nb-Ta Alloy Measured by Mechanical Spectroscopy." Defect and Diffusion Forum 312-315 (April 2011): 1228–32. http://dx.doi.org/10.4028/www.scientific.net/ddf.312-315.1228.

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When metals that present bcc crystalline structure receive the addition of interstitial atoms as oxygen, nitrogen, hydrogen and carbon, they undergo significant changes in their physical properties because they are able to dissolve great amounts of those interstitial elements, and thus form solid solutions. Niobium and most of its alloys possess a bcc crystalline structure and, because Brazil is the largest world exporter of this metal, it is fundamental to understand the interaction mechanisms between interstitial elements and niobium or its alloys. In this study, mechanical spectroscopy (int

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32

Grandini, Carlos Roberto, Odila Florêncio, and Walter José Botta Filho. "Diffusion of Interstitial Solutes in Nb-46wt% Ti Alloys Measured by Mechanical Spectroscopy." Defect and Diffusion Forum 326-328 (April 2012): 708–12. http://dx.doi.org/10.4028/www.scientific.net/ddf.326-328.708.

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The mechanical properties of metals with a body-centered cubic (bcc) structure, such as Nb, Ta, V, and their alloys, are modified with the introduction of interstitial impurities, such as O, N, C, or H. These metals can dissolve great amounts of O and N, for example, to form solid solutions. The interstitial solute atoms (ISA) in metals with a bcc structure occupy octahedral sites and cause local distortion with tetragonal symmetry. So ISA in these metals forms an elastic dipole that can align along one of the three cubic axis of the crystal. In the present paper, the torsion pendulum techniqu

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33

Zhuravlev, Vladimir I., Yuliya N. Zhirkova, and Boris A. Khorishko. "EXPERIMENTAL AND MODEL EVALUATION OF DIFFUSION COEFFICIENTS OF BARIUM IN LIQUID GALLIUM AND LEAD." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 63, no. 7 (2020): 20–25. http://dx.doi.org/10.6060/ivkkt.20206307.6074.

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Gallium and lead are used as liquid cathodes to produce alloys of alkaline earth metals, including barium. Data on the diffusion coefficients of barium (DBa) in liquid metals obtained by anodic chronopotentiometry are very limited. In this paper, an experimental evaluation of DBa in liquid gallium and lead was carried out by a combined method. It is based on the joint processing of the measurement data of the cathode chronopotentiometry in the coordinates E–ln√τ and the equations of the isotherms of the potentials of the alloys of the E–lnXBa obtained under the same conditions. Measurements we

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34

Savitskii, Arnold P. "Diffusion Interaction between Two Metals, One of Which is in Liquid State." Materials Science Forum 575-578 (April 2008): 1477–82. http://dx.doi.org/10.4028/www.scientific.net/msf.575-578.1477.

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Processes of diffusion interaction between solid and liquid phases take place in such phenomena as wetting, spreading, dissolution, contact melting, liquid metal corrosion, changes of mechanical properties of metals and alloys being in contact with melts, etc. The knowledge of the mechanism and regularities of this interaction is necessary for development of such technologies, as sintering, self-propagating high temperature synthesis, impregnation, casting, welding, soldering, liquid metal cladding, etc. However, in despite of the fact that the problem of diffusion interaction between solid an

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35

Mehlhorn, H. "Diffusion bonding of diamonds to metals." Welding International 3, no. 3 (1989): 262–64. http://dx.doi.org/10.1080/09507118909451159.

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36

Wittke, K., and A. Demmler. "Gas shielded diffusion welding of metals." Welding International 4, no. 5 (1990): 413–15. http://dx.doi.org/10.1080/09507119009447752.

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37

Ye, Xinglong, Holger Geßwein, Di Wang, Askar Kilmametov, Horst Hahn, and Robert Kruk. "Dealloying-induced phase transformation in Fe–Rh alloys." Applied Physics Letters 120, no. 14 (2022): 141904. http://dx.doi.org/10.1063/5.0088048.

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Nanoporous metals produced by dealloying have aroused enormous interest due to exotic mechanical and physico-chemical properties that are usually inaccessible in their bulk form. Interestingly, when binary solid-solution alloys, such as Ag–Au alloys, are dealloyed, the resulting nanoporous metals usually inherit the crystal structure of their parent alloys. In this Letter, we examined the evolution of the crystal structure during the dealloying of Fe–Rh alloys that show single-phase solubility over a large range of compositions. In situ x-ray diffraction shows that the crystallographic structu

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38

You, Hyeonjeong, Taehyun Lee, Minjung Kang, and Cheolhee Kim. "Process Review on Dissimilar Metal Joining of Steel and Ti Alloys." Journal of Welding and Joining 39, no. 6 (2021): 666–76. http://dx.doi.org/10.5781/jwj.2021.39.6.12.

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Titanium alloys have high specific strength and excellent high-temperature properties. However, Ti alloys have limited weldability with other metals due to the formation of brittle intermetallic compounds. Moreover, when steel is a counterpart of dissimilar metal joining, the soundness of weld is hardly achieved due to weld defects. Numerous studies have been conducted to achieve joint strength by minimizing the effects of Fe-Ti intermetallic compounds. In most studies, pure titanium or Ti-6Al-4V alloy were selected as the Ti base metal, whereas stainless steel, low carbon steel, or alloy stee

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39

Shields, Joe, Carlota Ruiz de Galarreta, Jacopo Bertolotti, and C. David Wright. "Enhanced Performance and Diffusion Robustness of Phase-Change Metasurfaces via a Hybrid Dielectric/Plasmonic Approach." Nanomaterials 11, no. 2 (2021): 525. http://dx.doi.org/10.3390/nano11020525.

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Materials of which the refractive indices can be thermally tuned or switched, such as in chalcogenide phase-change alloys, offer a promising path towards the development of active optical metasurfaces for the control of the amplitude, phase, and polarization of light. However, for phase-change metasurfaces to be able to provide viable technology for active light control, in situ electrical switching via resistive heaters integral to or embedded in the metasurface itself is highly desirable. In this context, good electrical conductors (metals) with high melting points (i.e., significantly above

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40

Herzig, Christian. "Soft Phonons and Diffusion Systematics in BCC Transition Metals and Alloys." Defect and Diffusion Forum 95-98 (January 1993): 203–20. http://dx.doi.org/10.4028/www.scientific.net/ddf.95-98.203.

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41

Bokstein, Boris, and Alexey Rodin. "Grain Boundary Diffusion and Grain Boundary Segregation in Metals and Alloys." Diffusion Foundations 1 (April 2014): 99–122. http://dx.doi.org/10.4028/www.scientific.net/df.1.99.

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In the present article the authors make an attempt to survey briefly the main landmarks of the GBD, to set off the most interesting results of the last years, to underline some gaps between expected and observed experimental data and to direct possible ways of their explanation.

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42

Itami, Toshio. "Diffusion and Two Liquid Phase Separation in Liquid Metals and Alloys." Materia Japan 33, no. 8 (1994): 1007–10. http://dx.doi.org/10.2320/materia.33.1007.

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43

Dudarev, E. F., G. P. Pochivalova, Yu R. Kolobov, E. V. Naydenkin, and O. A. Kashin. "Diffusion-controlled true grain-boundary sliding in nanostructured metals and alloys." Materials Science and Engineering: A 503, no. 1-2 (2009): 58–61. http://dx.doi.org/10.1016/j.msea.2008.02.057.

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44

Abdullaev, R. N., R. A. Khairulin, and S. V. Stankus. "Mutual diffusion in liquid alloys of heavy alkali metals with bismuth." Journal of Physics: Conference Series 1382 (November 2019): 012173. http://dx.doi.org/10.1088/1742-6596/1382/1/012173.

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45

Winiowski, A. "Application of diffusion brazing to the bonding of metals and alloys." Welding International 13, no. 11 (1999): 870–74. http://dx.doi.org/10.1080/09507119909452064.

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Winiowski, A., and D. Majewski. "Brazing of Titanium with Aluminium Alloys." Archives of Metallurgy and Materials 62, no. 2 (2017): 763–70. http://dx.doi.org/10.1515/amm-2017-0114.

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Abstract This study presents results of vacuum diffusion brazing of Grade 2 titanium with 6082 (AlMg1Si0.6Cu0.3) aluminium alloy using B-Ag72Cu-780 (Ag72Cu28) grade silver brazing metal as an interlayer. Brazed joints underwent shear tests, light-microscopy-based metallographic examinations and structural examinations using scanning electron microscopy (SEM) and X-ray energy dispersive spectrometry (EDS). The highest quality and shear strength of 20 MPa was characteristic of joints brazed at 530°C with a 30-minute hold. The structural examinations revealed that in diffusion zone near the bound

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47

Fukai, Yuh. "Hydrogen-Induced Enhancement of Atomic Diffusion in Metals." Defect and Diffusion Forum 297-301 (April 2010): 132–41. http://dx.doi.org/10.4028/www.scientific.net/ddf.297-301.132.

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Atomic diffusion in metals is invariably enhanced by dissolution of hydrogen, in some cases by many orders of magnitude. This is a consequence of the formation of superabundant vacancies (SAVs), one of the general properties of M-H systems. Some examples of H-induced enhancement of interdiffusion in alloys and a detailed investigation of self-diffusion in Nb hydride, NbHx, are described, together with accelerated atomic migration observed in electrodeposited metals, also a consequence of SAV formation in the electrodeposition process.

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48

Donald, Ian W., Brian L. Metcalfe, Lee A. Gerrard, and Shirley K. Fong. "Diffusion of Metallic Species and their Influence on Interfacial Reactions in Glass-Ceramic-to-Metal Seals." Advances in Science and Technology 45 (October 2006): 1520–25. http://dx.doi.org/10.4028/www.scientific.net/ast.45.1520.

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This is a preliminary investigation aimed at assessing the influence of individual metallic elements on the sealing characteristics of glass-ceramic-to-metal seals in order to aid in the analysis of interfacial reactions in more complex practical alloy systems. In the present study, a lithium zinc silicate (LZS) glass nucleated with P2O5 has been sealed to high purity Fe, Ni and Cr metals and the resultant diffusion into the glass of each metal monitored as a function of sealing temperature and time. The initial data obtained are compared with similar data noted for multi-component alloys.

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49

Lyakhovich, L. S., B. S. Kukharev, V. V. Kazak, and N. G. Kukhareva. "Diffusion zinc-plating of aluminum alloys." Metal Science and Heat Treatment 27, no. 6 (1985): 468–71. http://dx.doi.org/10.1007/bf00693293.

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Robson, J. D. "Deformation Enhanced Diffusion in Aluminium Alloys." Metallurgical and Materials Transactions A 51, no. 10 (2020): 5401–13. http://dx.doi.org/10.1007/s11661-020-05960-5.

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Abstract Deformation introduces defects such as dislocations and excess vacancies that can strongly influence diffusion rates in aluminium alloys. This is of great importance in understanding the effect of deformation on processes such as precipitation hardening, which can be accelerated by orders of magnitude by the defects introduced. In this work, a simple and widely used classical model has been employed to explore the effect of process variables on diffusion enhancement due to deformation-induced excess vacancies and dislocations. It is demonstrated that in aluminium alloys, the strain ra

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