Effect of laser surface treatment on the quality of microstructure in recycled Al-Zn-Si cast alloy

• Autorzy: Tillova E. , Durinikova E. , Chalupova M. , Radek N.
• Języki publikacji: EN

Abstrakty

EN

Recycled Al-Zn-Si casting alloys can often be used in new cast products for mechanical engineering, in hydraulic castings, textile machinery parts, cable car components or big parts without heat treatment. Improved mechanical properties and favourable of recycled microstructure of Al-alloys can often significantly increase the lifetime of casting and reduce costs for fuel and reduction of environmental loading. The paper is focused on using one of possible technologies that provide increased mechanical properties of recycled aluminium cast alloys for automotive industry, and that is laser surface hardening. For study was used recycled AlZn10Si8Mg cast alloy. The effect of laser beam Nd: YAG lasers BLS 720 was evaluated with the laser power 50 W and 80 W on the surface of samples. The final microstructure of aluminium alloys depend on the laser process parameters. The changes of microstructure as a grain refinement of the microstructure after laser surface hardening was observed by using classical techniques of etching and deep etching with concentrated HCl. Microstructure was evaluated on an optical microscope Neophot 32 and SEM.

Słowa kluczowe

EN

secondary cast alloy; laser surface treatment; microstructure

PL

odlew stopu wtórnego; obróbka powierzchniowa laserowa

• Wydawca: Oficyna Wydawnicza Stowarzyszenia Menedżerów Jakości i Produkcji
• Czasopismo: Production Engineering Archives
• Rocznik: 2014
• Tom: Vol. 2, No. 1
• Strony: 26--32
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Tillova E.

• University of Žilina, Faculty of Mechanical Engineering, Department of Material Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovakia

autor

Durinikova E.

• University of Žilina, Faculty of Mechanical Engineering, Department of Material Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovakia

autor

Chalupova M.

• University of Žilina, Faculty of Mechanical Engineering, Department of Material Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovakia

autor

Radek N.

• Technical University of Kielce, Chair of Terotechnology, The Centre for Laser Technologies of Metals, Al. 1000-lecia Państwa Polskiego 7, 25-314 Kielce, Poland

Bibliografia

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• 3. Ďuriníková E. et al., 2010. Štruktúrna analýza zliatiny AlZn10Si8Mg, In: Letná škola únavy materiálov, Žilina, p. 174-177 (in Slovak).
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