INFLUENCE OF CHEMICAL COMPOSITION AND HEAT TREATMENT OF ALSI6CU4 ALLOY ON THE UTILIZATION OF COPPER STRENGTHENING EFFECTS

Abstract

The paper presents deals with a quantification of intermetallic phases rich in copper in the alloy AlSi6Cu(X) with a variable content of copper, modified with strontium and during thermal treatment age hardening in artificial or natural way. It concerns variables occurring in the common industrial practice. The rate of solidification, thermal treatment regime and other elements of the alloy chemical composition were not be variated. Microhardness measurements related to a condition of 27 samples. Substructural TEM analysis characterizes the copper alloying condition of the structure matrix. Copper as a hardening element was identified by EDX analysis. Important process and material factors appealing to resultant mechanical properties of the alloy were identified, and the factors having a minimal effect were eliminated.

Recommended articles

STUDY OF QUALITY OF NINE ALUMINIUM ALLOYS SURFACES CREATED USING ABRASIVE WATERJET

LUCIE GURKOVA, DAGMAR KLICHOVA, JIRI KLICH
Keywords: surface roughness | abrasive waterjet | study of quality | aluminium alloy | optical profilometer

LOAD TORQUE ANALYSIS OF INDUCTION MACHINE

MARTIN KROUPA, ROSTISLAV HUZLIK, CESTMIR ONDRUSEK
Keywords: induction machine | diagnosis | amplitude modulation | phase modulation | stator current signature | load torque oscillation | spectral analysis