Influence features of alloying elements on structure and phase transformation in solder alloy of Cu−Mn−Fe−Ni−Si system
Keywords:
solder, alloying element, phase transformations, the differentially-thermal analysis, extrusionAbstract
Purpose. In connection with development of branches of mechanical engineering, aircraft building and rocket production the soldering of stainless steels and heat resisting alloys gains special value. Improvement of the soldering process goes by the way of working out of new solders and fluxes, reduction of precious metals content, such as silver, and also researching of optimum environments and soldering methods. The most perspective for this purpose by results of fatigue tests of joints are solders on the copper-manganese base. Methodology. In this work researching of phase structure of Cu−Mn alloys with a different variation of the alloying elements Fe, Ni, Si content has been carried out by methods of metallography, DTA and SEM analyses as well cast (original) alloys as after extrusion; also ranges of phase transformation have been defined. Findings. Investigations of influence of alloying elements on properties and characteristics of solder from Сu-Мn alloy are resulted in this research. It is revealed that for decreasing of the solder melting temperature it is necessary to increase the content of manganese and silicon to 30 and 3 % respectively at the iron content within 1,5…3 %. More iron content does not raise strength of soldered product considerably, but thus can reduce fluidity of the solder. By results of the differentially thermal analysis, temperatures for extrusion process of the solder alloy are defined. Rolling does not lead to the phase composition change of initial alloys. Practical value. The result of the done work can be used for determination of an optimum content of solder material, which satisfies to technological requirements of the soldering process.
References
ПЕРЕЛІК ВИКОРИСТАНИХ ДЖЕРЕЛ
Пашков И. Н. Особенности пайки порошковым припоем системы медь − марганец − никель / И. Н. Пашков, С. П. Герасимов, А. И. Пашков // Сварочное производство. – 2008. – № 10. – С. 37–41.
Максимова С. В. Структура и свойства сплавов системы Сu–Мn, легированных железом : монография / С. В. Максимова // Материалы и технология пайки. – Киев : ИЭС, 1991. – 81 с.
Meyers M. A. Observations on the ferromagnetic --phase of the Cu–Mn–Sn system / M. A. Meyers, C. O. Rund, C. S. Barrett // Crystallography. − 1973. – Vol. 6. – № 1. – P. 39.
Туркин В. Д. Исследование сплавов системы медь − марганец − кремний / В. Д. Туркин, Д. К. Кушкикова // Сб. науч. тр. Науч.-техн. общества цвет. металлургии. − Москва : Ин-т цветных металлов и золота, 1958. − № 29. − С. 18−25.
Гольдшмидт Х. Дж. Сплавы внедрения. / Х. Дж. Гольдшмидт // Под ред. Н. Т.Чеботарева. − Москва : Мир, 1971. − С. 56−58.
Промышленные цветные металлы и сплавы : монография / [А. П. Смирягин, Н. А. Смирягина, А. В. Белова]. – Москва : Металлургия, 1974. – 48 с.
Носенко В. К. Дослідження фазових перетворень в екструдованих припійних сплавах на основі міді / В. К. Носенко, Г. П. Брехаря, Т. Ю. Ніколаєва // Металознавство та обробка металів. – 2015. – № 2. – С. 10–15.
REFERENCES
Pashkov I.N., Gerasimov S.P. and Pashkov A.I. Osobennosti pajki poroshkovym pripoem sistemy med'−marganec−nikel' [Properties brazing solder powder system copper−manganese−nickel]. Svarochnoe proizvodstvo. [Welding production]. 2008, no. 10, pp. 37−41. (in Russian).
Maksimova S.V. Struktura i svojstva splavov sistemy Cu-Mn, legirovannyh zhelezom [Structure and properties of the alloys Cu−Mn system alloy iron]. Materialy i tehnologiya pajki [Materials and soldering technology]. Kiev: IES, 1991, p. 81. (in Russian).
Meyers M.A., Rund C.O. and Barrett C.S. Observations on the ferromagnetic --phase of the Cu–Mn–Sn system. Crystallography. 1973, vol. 6, no. 1, p. 39.
Turkin V.D. and Kushkikova D.K. Issledovanie splavov sistemy med'-marganec-kremnij [Investigation of alloys of copper, manganese, silicon].Coll. scientific. tr. scientific and engineering Society color metallurgy. Moscow: Institute of Nonferrous Metals and Gold Publ., 1958, no. 29, pp. 18−25. (in Russian).
Goldschmidt H.J. Splavy vnedreniya [Interstitial alloys]. Ed. by Chebotareva N.T. Moscow: Mir Publ., 1971, pp. 56−58. (in Russian).
Smiryagin A.P., Smiryagina N.A. and Belova A.V. Promyshlennye cvetnye metally i splavy [Industrial non-ferrous metals and alloys] Moscow: Metallurgy Publ., 1974, 48 p. (in Russian).
Nosenko V.K., Breharya G.P. and Nikolaeva T.Yu. Doslіdzhennya fazovih peretvoren' v ekstrudovanih pripajnih splavah na osnovі mіdі [Investigation of phase transformations in soldered alloys based on copper]. Metaloznavstvo ta obrobka metalіv [Metallurgy and metal processing]. 2015, no. 2, pp. 10−15. (in Ukrainian).
Downloads
Published
Issue
Section
License
Authors that are published in this journal agree to follow the conditions:
Authors reserve the right to the authorship of his work and cede the right to the journal of first publication of this work on conditions of the license under the Creative Commons Attribution License, which allows others to distribute it freely with the obligatory reference to the author of the original work and the first publication of the work in this journal.
