Phase composition, microstructure and microhardness of alloy In–Sn, obtained by rapid crystallization
https://doi.org/10.29235/1561-8358-2018-63-3-290-296
Abstract
The results of studying of the structure and properties of the In – 42 at.% Sn alloy in the form of foil obtained by the method of rapid solidification with a cooling rate of the melt of at least 105 K/s are presented. X-ray diffraction analysis showed that the phase composition of the alloy corresponds to the equilibrium state diagram. Foils consist of an InSn4 compound (γ-phase) and an In3Sn compound (β-phase). The grain structure of foil was studied by electron backscatter diffraction technique. It is established that the foil have a microcrystalline structure. The parameters of the microstructure are determined by the method of random linear secants: the volume fraction of the phases, average chord length of the random linear secant on the inclusions of each phase, the specific surface of the interface. Microstructure and distribution of components was also studied for both foil surfaces. The texture of both phases of the polycrystalline foils was studied by the method of inverse pole figures. It is established that the initial foils of the investigated alloy are in an unstable state. It is shown that an increase in the microhardness of the alloy during aging and annealing caused by change in the parameters of the grain structure.
About the Authors
V. G. Shepelevich
Belarusian State University
Russian Federation
Russian Federation
Vasiliy G. Shepelevich – D. Sc. (Physics and Mathe matics), Professor.
4, Nezavisimosti Ave., 220030, MinskO. V. Gusakova
International Sakharov Environmental Institute of the Belarusian State University
Russian Federation
Russian Federation
Olga V. Gusakova – Ph. D. (Physics and Mathematics), Associate Professor.
23, Dolgobrodskaya Str., 220070, MinskS. V. Husakova
Belarusian State University
Russian Federation
Russian Federation
Sofia V. Husakova – Ph. D. (Physics and Mathematics), Lead Engineer.
4, Nezavisimosti Ave., 220030, Minsk
References
1. Yeh C.-H., Chang L.-S., Straumal B. The Grain Boundary Wetting in the Sn – 25 at% In Alloys. Defect and Diffusion Forum, 2006, vol. 258–260, pp. 491–496. https://doi.org/10.4028/www.scientific.net/DDF.258-260.491
2. Andryushchenko M. Lead-free soldering. Alternative alloys. Elektronika: Nauka, tekhnologia, biznes = Electronics: Science, Technology, Business, 2004, no. 5, pp. 47–49 (in Russian).
3. Yeh Chien-Hsuan, Chang Li-Shin, Straumal B. Wetting Transition of Grain Boundaries in Tin-Rich Indium-Based Alloys and Its Influence on Electrical Properties. Materials Transactions, 2010, vol. 51, no. 9, pp. 1677–1682. https://doi.org/10.2320/matertrans.M2010159
4. Ozga P., Świątec Z., Michalec M., Onderka B., Bonarski J. Phase structure and texture of electrodeposited InSn alloys on copper Substrate. Archives of Metallurgy and Materials, 2008, vol. 53, iss. 1, pp. 307–315.
5. Vasil’yev V. A., Mitin B. S., Pashkov I. N., Serov M. M., Skuridin A. A., Lukin A. A., Yakovlev V. B. Rapid solidification of melts: theory, technology and materials. Moskow, SP Intermet Inzhiniring Publ., 1998. 400 p. (in Russian).
6. Shepelevich V. G. Rapidly-solidified low-melting alloys. Minsk, Belarusian State University, 2015. 192 p. (in Russian).
7. Pashkov I. N., Pikunov M. V., Tavolzhanskiy S. A., Pashkov A. I. Development of the processes of obtaining and using alloy solders in the dispersion state with a microcrystalline or amorphous structure. Metallurg = Metallurgist, 2010, no. 6, pp. 43–45 (in Russian).
8. Saltykov S. A. Stereometric metallography. Moskow, Metallurgiya Publ., 1976. 272 p. (in Russian).
9. Rusakov A. A. Radiography of metals. Moskow, Atomizdat Publ., 1977. 488 p. (in Russian).
10. Mirkin L. I. Umanskii Ya. S. (ed.). Handbook of X-ray diffraction analysis of polycrystals. Moskow, State Publishing House of Physical and Mathematical Literature, 1961. 863 p. (in Russian).
11. Shepelevich V. G. Structure, properties and stability of the rapidly solidified eutectic Bi – 40 wt.% Cd. Materialovedeniye, 2013, no. 10, pp. 26–30 (in Russian).
12. Shepelevich V. G. Phase composition and grain structure of the rapidly solidified eutectic alloy Sn – 32 wt.% Cd. Fiziko-khimicheskiye aspekty izucheniya klasterov, nanostruktur i nanomaterialov: mezhvuz. sb. nauch. tr. [Physico-chemical aspects of the study of clusters, nanostructures and nanomaterials: interuniversity collection of scientific papers]. Tver, Tver State University, 2013, issue 5, pp. 370–375 (in Russian).
13. Shepelevich V. G., Scherbachenko L. P. The microstructure and microhardness of rapidly solidified foils of eutectic alloy In – 47 at.% Sn. British Journal of Science. Education and Culture, 2015, vol. 111, no. 1(7), pp. 863–869.
14. Van Tszintsze, Shepelevich V.G. Structure and microhardness of the fast-solidified foil of the γ-phase of the In–Sn system. Vestnik Belorusskogo gosudarstvennogo universiteta. Ser 1. Fizika. Matematika. Informatika = Vestnik BSU. Series 1. Physics. Mathematics. Informatics, 2011, no. 1, pp. 22–24 (in Russian).
15. Van Tszintsze, Shepelevich V. G. Structure of the fast-solidified β-phase of the In–Sn system. Vestnik Belorusskogo gosudarstvennogo universiteta. Ser 1. Fizika. Matematika. Informatika = Vestnik BSU. Series 1. Physics. Mathematics. Informa tics, 2010, no. 3, pp. 27–29 (in Russian).
16. Khonikomb R. Plastic deformation of metals. Moskow, Metallurgiya Publ., 1975. 408 p. (in Russian).
17. Bokshteyn B. S., Kapetskiy C. V., Shvinderman L. S. Thermodynamics and kinetics of grain boundaries in metals. Moskow, Metallurgiya Publ., 1986. 224 p. (in Russian).
18. Grabskiy M. V. Structural superplasticity of metals. Moskow, Metallurgiya Publ., 1975. 272 p. (in Russian).
Review
Views: 768
Email this article 
