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Zmiana wybranych właściwości mechanicznych siluminu AK9 po obróbce metalotermicznej

100%

Lipiński T.

Archiwum Odlewnictwa

2001

tom R. 1, nr 2

226--231

W pracy przedstawiono efektywność oddziaływania mikrododatków: Pb3O4, Cr2O3, Al i Mg na wybrane właściwości mechaniczne (wytrzymałość na rozciąganie, wydłużenie względne, twardość Brinella). Rezultaty zaprezentowano za pomocą wprowadzonych wskaźników efektywności oddziaływania Xzi i oddziaływania sumarycznego Waidla poszczególnych składników mieszanki.

The paper brings results of efficiency of chemical microadditions Pb3O4, Cr2O3, Al i Mg influences on selected mechanical properties (tensile strength, unit elongations, Brinell hardness). The results are presented by introduced influence efficiency index &Chizi and total efficiency index Wai for every one of ingredients.

Wielomianowe modele właściwości mechanicznych stopów aluminium

100%

Pezda J. , Dudyk M. , Ciućka T. , Wasilewski P.

Krzepnięcie Metali i Stopów

1998

tom nr 38

131--136

W artykule przedstawiono zastosowanie Analizy Termiczno - Derywacyjnej (ATD) oraz Analizy Elektryczno - Derywacyjnej (AED) do próby oceny właściwości mechanicznych rafinowanego i modyfikowanego stopu AK9.

The evaluation test of mechanical properties of the AK9 silumin have been described in this paper. The characteristics points obtained from the solidification curves and from the electrical conductivity curves, as well as from their derivatives have been determined on the state of the solidification and crystalization curves using the methods simultaneous recording ATD and AED. On the state of these characteristic points, the mathematical models in from of the quadratic multinominal have been defined of define the mechanical properties of the AK9 silumin (Rm, A5).

Effect of selected heat treatment parameters of AK9 silumin on its tensile strength

84%

Pezda J.

Archives of Foundry Engineering

2008

tom Vol. 8, iss. 3

81-84

Development of modern techniques creates supply of better and better structural materials having higher strength. Light metals and their alloys are more and more often used for metal structures, whereas aluminium and its alloys are the most widespread among them. Mechanical and technological properties of castings made from Al-Si alloys depend most of all on properly performed process of melting and casting, design of casting and mould, as well as heat treatment. The paper describes implementation of TDA method to determination of solution heat treatment and ageing treatment temperatures of AK9 silumin. Investigated alloy was melted in electric resistance furnace. Next, the alloy had undergone processes of refining and modification. Run of crystallization process is presented with use of thermal derivative analysis (TDA). That method was also implemented to determination of heat treatments temperature's range of the alloy. Obtained results relate to registered with TDA method solution heat treatment curves, light microscopy, strength tests and determination of an effect of selected parameters of the heat treatment on tensile strength Rm of investigated alloy. On base of performed tests of heat treated alloy there was determined an effect of selected parameters on obtained tensile strength Rm. The tests were performed in laboratory conditions, and therefore what is why verification in industrial environment is needed.