Czasopismo
2008
|
Vol. 26, nr 2
|
123-126
Tytuł artykułu
Autorzy
Wybrane pełne teksty z tego czasopisma
Warianty tytułu
Języki publikacji
Abstrakty
Purpose: The aim of this work was to investigate the changes taking place in the structure and properties of silver-mishmetal alloys caused by severe plastic deformation compared to the Ag+(7.5 wt %)Cu alloy and pure Ag materials. Design/methodology/approach: Tests were made with samples obtained by melting and casting in an induction furnace. Further plastic working included KOBO® extrusion process and drawing. The mechanical properties (at a room temperature, elevated temperature and after annealing) and microstructure were examined (by the optical, scanning and transmission electron microscopy). Findings: Structure of the extruded material was fine and homogenous. The alloys with an addition of mishmetal had high electrical conductivity, which was decreasing with an increase in the content of alloy additives. Examination of the mechanical properties has shown that these alloys exhibited (after annealing) an increased stability of properties at elevated temperatures. Practical implications: The alloy with an addition of mishmetal could be considered, after further investigations, as a material suitable for use in the production of electrical or electronic parts operating at elevated temperature or exposed to temperature changes. Originality/value: This work demonstrated that properties of the newly designed silver alloys with an addition of mishmetal exhibit temperature stability. The wire made from this material could be easily produced by the developed processing methods, without the need to use annealing operations. Due to the stable properties and excellent electrical conductivity, this alloy is suitable for use in the production of an advanced electrical or electronic equipment.
Rocznik
Tom
Strony
123-126
Opis fizyczny
Bibliogr. 15 poz., il., wykr.
Twórcy
autor
autor
- Institute of Non-Ferrous Metals, ul. Sowińskiego 5, 44-100, Gliwice, Poland, wojtekg@imn.gliwice.pl
Bibliografia
- [1] J. Stobrawa, Z. Rdzawski, Silver-perspectives-applications, Proceedings of the V Conference Noble Metals Zakopane-Koscielisko, 2004, 74-81(in Polish).
- [2] J. Stobrawa, Z. Rdzawski, Prospects of the development silver processing sector, Ores and metals 49/12 (2004) 633-636 (in Polish).
- [3] L. A. Dobrzański, Fundamentals of material science and physicall matalurgy, WNT, Gliwice-Warszawa, 2006.
- [4] W. Głuchowski, Z. Rdzawski, Stability of properties in silver lanthanum alloy, Journal of Achievements in Materials and Manufacturing Engineering 24/2 (2007) 103-106.
- [5] L. Benner, T. Suzuki, K. Meguro, S. Tanka, Precious Metals Science and Technology, IPMI, 1991.
- [6] I. Kawashimaa, H. Ohnoa, N. K. Sarkar, Effect of Pd or Au addition on age-hardening in AgMn-based alloys Dental Materials 16 (2000) 75-79.
- [7] E. Nisaratanaporn, S. Wongsriruksa, Study on the microstructure, mechanical properties, tarnish and corrosion resistance of sterling silver alloyed with manganese, Materials Science and Engineering A445-446 (2007) 663-668.
- [8] M. Banerjee, S. Datta, Effect of cold work and trace rare-earth additions on the aging behavior of Al-Cr alloys containing zirconium, Materials Characterization 44 (2000) 277-284.
- [9] S. Hong, A. Hill, Microstructural stability and mechanical response of Cu±Ag microcomposite wires, Acta Materialia 46/12 (1998) 4111-4122.
- [10] R. H. Nada, Precipitation kinetics in Ag-2wt% Cu and Ag-2wt% Cu-0.5wt% in alloys during transformation, Physica B 349 (2004) 166-173.
- [11] S. B. Youssef, Resistometric study of Ag-8 at% Cu alloy aged in the temperature range 0,4-0,65 Tm,Physica B 228 (1996) 337-341.
- [12] Hyo-Joung Seol, Doung-Hun Lee, Age-hardening and related phase transformation in an experimental Ag-Cu-Pd-Au alloy, Journal of Alloys and Compounds 407 (2006) 182-187.
- [13] J. Stobrawa, Z. Rdzawski, Deformation behavior of dispersion hardened nanocrystalline copper, Journal of Achievements in Materials and Manufacturing Engineering, 17 (2006) 153-156.
- [14] U. Grundmann, M. Gerner, Deformation behaviour of oxide-dispersion-strenghtened silver, Materials Science and Engineering A234-236 (1997) 505-508.
- [15] U. Grundmann, M. Heilmaier, L. Schultz, High temperature deformation behaviour of mechanicly alloyed microcrystaline ODS silver, Scripta Materialia 37/1 (1997) 103-109.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-article-BWAN-0002-0036