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3 1998

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Relationship of structure and properties of Al-Si alloys.

Taran Yu.N., Kutsova V.Z., Uzlov K.I.

Inżynieria Materiałowa

1998

R. XIX, nr 3

588-591

The aim of the present investigation had to be study of combined influence of copper and phosphorous on the structure and properties of hypereutectic Al-Si alloys. In the structure of investigated alloys it could be possible to fix together with aluminium and silicon solid solutions intermetallic phases contained Cu, P, Fe. Alloys modified with phosphorous and copper have average tensile strength higher than syntetic binary ones. At the same time elongation dropping down. In the frame of the present investigation the effect of copper and phosphorous on eutectic and peritectic transformations in Al-Si system has been studied.

Phase transitions and structure of hypereutectic Al-Si alloys.

Taran Yu.N., Kutsova V.Z., Uzlov K.I., Evsyukova I.M.

Inżynieria Materiałowa

1998

R. XIX, nr 3

584-587

Regularities of structural and pase transitions in hypereutectic Al-Si alloys have been studied. Peritectic (740-680 degrees centigrade) and allotropic transformations (680 degrees centigrade) has been found in studied alloys. On the base of experimental data mechanism of peritectic reaction in hypereutectic Al-Si alloys has been proposed.

Interconnection between structure and properties of general purpose commercial Al-Si alloys.

Taran Yu.N., Kutsova V.Z., Uzlov K.I.

Inżynieria Materiałowa

1998

R. XIX, nr 3

528-531

In the present investigation the effect of microalloying (modifying) elements (Na, Sr, Y, Rare-Earth, Sb, Ti, Zr) on the structure and properties of commercial general purpose alloys base on Al-Si-Mg-Mn-Fe composition has been studied. Phase equilibriums and transitions in commercial alloys have been determined by thermal, high sensivity gamma-absorbtion methods and by analisis of phase equilibriums in basic binary, ternary and four-components systems. Knowledge of structural formation allows to develope industrially used heat treatment processes and to elaborate new ones.