Influence of chemical composition variation and heat treatment on microstructure and mechanical properties of 6xxx alloys

• Autorzy: Mrówka-Nowotnik G.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The main task of this work was to study the effect a the precipitation hardening on the microstructure and mechanical properties of 6061, 6063 and 6082 aluminium alloys. Design/methodology/approach: In this paper differential scanning calorimetry (DSC) and hardness measurements have been utilized to study the effect of a precipitation hardening on the mechanical properties in 6xxx aluminium alloys. The mechanical (Rm and Rp0.2) and plastic (A, Z) properties of the examined alloys were evaluated by uniaxial tensile test at room temperature. The microstructure was observed using optical microscope - Nikon 300, scanning electron microscope HITACHI S-3400 (SEM) in a conventional back-scattered electron mode. Findings: The results show that the microstructure and mechanical properties changes during artificial aging due a the precipitation strengthening process. Therefore, the parameters (time and aging temperature) of precipitation strengthening process that may lead to the most favourable mechanical properties of 6061, 6063 and 6082 alloys were determined. Practical implications: This paper is the part of previous author's investigations which results in modification of the heat treatment parameters that may lead to the most favorable mechanical properties of 6xxx alloys. Originality/value: The paper has provided essential data about influence chemical composition and aging parameters on the microstructure and mechanical properties of 6061, 6063 and 6082 alloys.

Słowa kluczowe

EN

metallic alloys; microstructure; mechanical properties; heat treatment

PL

stopy metaliczne; mikrostruktura; właściwości mechaniczne; obróbka cieplna

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2010
• Tom: Vol. 46, nr 2
• Strony: 98--107
• Opis fizyczny: Bibliogr. 28 poz.

Twórcy

autor

Mrówka-Nowotnik G.

• Department of Materials Science, Rzeszow University of Technology, ul. W. Pola 2, 35-959 Rzeszów, Poland,

Bibliografia

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