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Ductility minimum temperature phenomenon in as cast CuNi25 alloy

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Purpose: The aim of this paper was to present DMT phenomenon in CuNi25 alloy and describe behavior of as cast alloy during high temperature tensile tests for different strain rates. Design/methodology/approach: Numerous techniques were used to characterize properties of material: high temperature tensile tests, light microscope, scanning electron microscopy (SEM), transmission electron microscopy (TEM). Linear and point analysis of concentration executed with the help of X-ray microanalysis. Findings: It was determine from the experimental studies the course of elongation and reduction of area curves for different strain rates. Their was analyze morphology of material in the range of 300-650°C. Research limitations/implications: Further studies should be undertaken in order to correlate effects, processes and mechanism existing and superimpose in material in range of Ductility Minimum Temperature phenomenon and what should help us understand high temperature properties of mentioned material. Practical implications: Knowledge about material properties during high temperature deformation leads to selection appropriate production parameters. Misapplication of parameters leads to multiplication of costs and often destruction of material during production or operating. Correct selection of technical and economical parameters of material production give us supremacy in economic and technological competition. Originality/value: Investigations of this as cast CuNi25 alloy complete ours knowledge about mechanical properties and help us to develop correct parameters for more effective technologies for material production.
Rocznik
Strony
193--196
Opis fizyczny
Bibliogr. 18 poz., rys., tab., wykr.
Twórcy
  • Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland
autor
  • Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland
  • Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland
Bibliografia
  • [1] R. Nowosielski, Ductility minimum temperature in selected mono-phase, binary brasses, Journal of Materials Processing Technology 109 (2001) 142–153.
  • [2] W. Ozgowicz, The relation between hot ductility and intergranular fracture in CuSn6P alloy in elevated temperature, Proceedings of the 10th Int. Science Conference on AMME’05, Gliwice, 2005, p. 503-508.
  • [3] Z. Mohamed, Hot ductility behavior of vanadium containing steels, Mater. Sci. Eng. (2001), p. 255-260.
  • [4] D.W Livesey, C.M. Sellars, Hot- deformation characteristics and extrusion of copper-nickel alloys, MT/1020, The Metals Society. (1983), p. 149.
  • [5] H.J. Frost and M.F. Ashby, Deformation – Mechanism Maps, Pergamon Press, 1989.
  • [6] R. Nowosielski, P. Sakiewicz, P. Gramatyka, The effect of ductility minimum temperature in CuNi25 alloy, Journal of Materials Processing Technology 162–163 (2005) 379-384.
  • [7] R. Nowosielski, P. Sakiewicz, P. Gramatyka, The effectof ductilityminimum temperature in CuNi25 alloy, Proceedings of the 13th Int. Science Conference on AMME’05, Gliwice, (2005), 487-492.
  • [8] Tadao, Watanabe, Sadahiro, Tsurekawa,Structure-dependent grain boundary deformation and fracture at high temperatures, Materials Science and Engineering A 387–389 (2004) 447–455.
  • [9] W. Brückner, V. Weihnacht, Abnormal grain growth in {111} textured Cu thin films, Journal of Applied Physics V85, N 7, 1 April 1999.
  • [10] T. Watanabe, S. Tsurekawa, Materials Science and Engineering A 387-389 (2004) 447–455
  • [11] B. Druyanov, I. Roman,A continuum model for grain junctions in polycrystalline aggregate, Mechanics of Materials 30 (1998) 31-40.
  • [12] R. Krishnamurthy, D.J. Srolovitz, Stress distributions in growing polycrystalline oxide films, Acta Materialia 52 (2004) 3761–3780.
  • [13] J.H. Zhu, C.T. Liu, Intermediate-temperature mechanical properties of Ni–Si alloys: oxygen embrittlement and its remedies, Intermetallics 10 (2002) 309-316.
  • [14] F. Inoko, T. Okada, T. Nishimura and M. Ohomori, Strain Induced Grain Boundary Premelting along Twin Boundaries in Copper Polycrystals, Interface Science 7 (1999) 131-140.
  • [15] A. Mwembela, E.V. Konopleva, H.J. McQueen, Microstructural development in Mg alloy AZ31 during hot working, Scripta Metall. Mater. 37 (1997) 1789-1795.
  • [16] H.J. McQueen, Defects, Fracture and Fatigue, Marinus Nijhoff Pub., The Hague, 1983, p. 459–471 (Mont. Gabriel, May 1982).
  • [17] W. Ozgowicz, Thermal analysis of vacancy defects inquenched tin bronzes – α, Proceedings of the 11th International Science Conference on AMME’02, Gliwice, (2002), p. 395.
  • [18] R. Luke, J. Bankmann, P.J. Wilbrandt, Phase separation by internal oxidation and reduction in a Cu-5at%Ni-alloy, Scripta Mater. 39 (1998) 73-75
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-b2380393-ca88-41fd-bb39-b1b20c358fa3
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