Czasopismo
2007
|
Vol. 25, nr 2
|
17-23
Tytuł artykułu
Autorzy
Wybrane pełne teksty z tego czasopisma
Warianty tytułu
Języki publikacji
Abstrakty
Purpose: Leaded brasses are most commonly used Cu alloys, especially for home fixture. High toxicity of lead to human caused tendency to eliminate this additions from these alloys. In this work a discussion of solutions to this problem is shown and possibilities of leaded brasses replacement with multi-component non-leaded brasses. Design/methodology/approach: In this work general properties of multi - component brasses are investigated (mechanical, technological and operating properties) as well as its structure and their correlation with chemical composition. Some interactions of additions are shown with physical and mathematical model of its influence on properties. Findings: It was found that in a complex of additions (closed system) the interactions can be described by physical model and mathematical equations showing properties in function of chemical composition can be used to optimize chemical composition for engineering alloys with known properties. Research limitations/implications: However introducing new elements to the system (chemical composition) will disturb the created models (physical and mathematical). It must be said that for investigated alloys optimal properties can be ensured using presented models. Practical implications: Presented approach enables optimization of alloy properties for particular application. Properties can be introduced to the mathematical model which with use of optimization methods will return needed chemical composition. Originality/value: Alloys engineered with use of presented approach have properties close to leaded brass with low increase in total production costs.
Rocznik
Tom
Strony
17-23
Opis fizyczny
Bibliogr. 23 poz., fot., rys.
Twórcy
autor
autor
- Division of Foundry, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Towarowa 7, 44-100 Gliwice, Poland, marcin.kondracki@polsl.pl
Bibliografia
- [1] M. Kondracki, J. Gawroński, J. Szajnar, The alloy additions influence on technological properties of fixture brasses, Proceedings of the 12th Scientific International Conference "Achievements in Mechanical and Materials Engineering" AMME'2003, Gliwice - Zakopane, 2003, 485-490.
- [2] A. Janus, B. Ankudowicz, Possibility of lead elimination from CuZn39Pb2 brass, Solidification of Metal and Alloys, 43 (2000) 291-298 (in Polish).
- [3] J. Pacałowski, M. Tałach-Dumańska, A. Spodaryk, Multicomponent nonleaded brass with good machinability and wear resistance, Solidification of Metal and Alloys 24 (1995) 89-94 (in Polish).
- [4] M. Kondracki, J. Gawroński, J. Szajnar, Role of the intermetallic phases in technological process of fixture brasses, Journal of Materials Processing Technology 162-163 (2005) 332-335.
- [5] M. Kondracki, J. Gawroński, J. Szajnar, Forecasting of cast CuZn alloy structure based on TDA method, Proceedings of The International Conference on Nonferrous Metal Casting Science - Technology, Wysowa, 2005, 53-58 (in Polish).
- [6] S. Kuyucak, M. Sahoo, A review of the machinability of copper-base alloys, Canadian Metallurgical Quarterly 35/1 (1996) 1-15.
- [7] M. Kondracki, J. Gawroński, J. Szajnar, G. Dyrbuś, Technological properties of non - leaded fixture brasses, Archives of Foundry 9 (2003) 287-292 (in Polish).
- [8] M. Kondracki, J. Gawroński, J. Szajnar, Identification of some structural components in cast CuZn alloys, Archives of Foundry 15 (2005) 204-209 (in Polish).
- [9] M. Kondracki, J. Gawroński, J. Szajnar, Hard inclusions in fixture brasses, Proceedings of the 13th Scientific International Conference "Achievements in Mechanical and Materials Engineering" AMME'2005, Wisła, 2005, 319-322.
- [10] M. Kondracki, J. Gawroński, J. Szajnar, Intermetallic phases influence on solidification process of fixture brasses, Proceedings of the 13th Scientific International Conference "Achievements in Mechanical and Materials Engineering" AMME'2005, Wisła, 2005, 323-326.
- [11] M. Sadayappan, J.P. Thomson, M. Sahoo, Grain refinement of permanent mold cast copper base alloys, Proceedings of the World Foundry Congress, Istambul, 2002 1401-1411.
- [12] M. Kondracki, J. Szajnar, Improvement of modification process of some copper alloys, Slevarenstvi 9 (2004) 364-366.
- [13] T. Umeda et. al, Development of lead free copper alloy castings, mechanical properties, castability and machinability, Proceedings of the World Foundry Congress, Istambul, 2002, 1431-1342.
- [14] L.A. Dobrzański, W. Kasprzak, J.H. Sokolowski, R. Maniara, M. Krupiński, Application of the derivation analysis for assessment of the ACAlSi7Cu alloy crystallization process cooled with different cooling rate, Proceedings of the 13th Scientific International Conference "Achievements in Mechanical and Materials Engineering" AMME'2005, Wisła, 2005,147-150.
- [15] E. Majchrzak. J. Mendakiewicz, A. Piasecka - Belkhayat, Algorithm of mould thermal parameters identification in the system casting - mould - environment, Proceedings of the 13th Scientific International Conference "Achievements in Mechanical and Materials Engineering" AMME'2005, Wisła, 2005, 411-414.
- [16] M. Kondracki, J. Gawroński, J. Szajnar, Chemical composition influence on machinability of non - leaded brasses, Archives of Foundry 18 (2006) 267-272 (in Polish).
- [17] M. Kondracki, J. Gawroński, J. Szajnar, R. Grzelczak, K. Podsiadło, Investigation on crystallization process of fixture leaded brasses with use of TDA method, Archives of Foundry 4 (2002) 128-134 (in Polish).
- [18] M. Miernik, Metals machinability. Investigation and forecasting methods, Publishing House of the Wrocław University of Technology, Wrocław, 2000 (in Polish).
- [19] P.K. Rohatagi et all, Cast composites with Cu matrix and graphite particles, Proceedings of the 2nd Conference on Cu Alloys, Wrocław - Szklarska Poręba, 1996,183-190 (in Polish).
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-article-BOS5-0021-0054