Artificial aging of thixocast ZA27 alloy and particulate ZA27/SiCp composites
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Ilija Bobić
, Miroslav Babić , Aleksandar Vencl , Biljana Bobić und Slobodan Mitrović
Abstract
Thixocast ZA27 alloy and particulate ZA27/SiCp composites were subjected to artificial aging at 80, 120 and 160°C (T5 regime). Composites with 5 and 10 vol.% SiC particles were produced via the compocasting method. The influence of the aging was investigated using different techniques. Differential scanning calorimetry was performed to reveal the presence of phases created in the thixocast ZA27 alloy and the composites. Microstructures and fracture behavior were examined by means of optical microscopy, scanning electron microscopy and X-ray diffraction. Aging processes in the matrix alloy and composites were followed using hardness measurements. A decrease in the hardness values was noticed with the increase in the aging temperature. At higher temperatures diffusion of zinc atoms from supersaturated phases in the matrix alloy was enhanced, which resulted in faster changes in the hardness. Aging processes in the composites were significantly accelerated compared to the matrix alloy, due to the presence of particulate reinforcements. The maximum in hardness was achieved for shorter time in the ZA27/SiCp composite with higher volume fraction of SiC particles.
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© 2013, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- Martensite–austenite transformation kinetics of high Cr ferritic heat-resistant steel
- Ageing texture of hot rolled and solution treated Ti–Nb alloys
- Artificial aging of thixocast ZA27 alloy and particulate ZA27/SiCp composites
- Low cycle fatigue behavior under asymmetric loading of two AZ31B magnesium alloys with different microstructures and textures
- Mechanical properties of aluminum extruded via the KOBO method with direct and lateral outflow
- Hot compression deformation of an Mg–2.54Nd–0.26Zn–0.32Zr alloy
- Evaluation of the sliding performance of polyamide, poly-oxy-methylene and their composites
- Corrosion behaviour of AISI 204Cu and AISI 304 stainless steels in simulated pore solution
- Comparing the corrosion behavior of nanograined and coarse-grained interstitial free steels
- Electrochemical investigation of the effect of different laser surface treatments on Hastelloy G alloy
- Influence of sputtering gas pressure on properties of transparent conducting Si-doped zinc oxide films
- Cu2SnS3 absorber thin films prepared via successive ionic layer adsorption and reaction method
- Nano preparation of Dy3+ substituted ceria via urea-formaldehyde gel combustion route
- Short Communications
- Preparation of ZrB2-based nanocomposites with limited grain growth by means of low-temperature hot-pressing using Cu additive
- Combustion synthesis of Ti2SC
- People
- Prof. Dr. Tomaž Kosmač
- DGM News
- DGM News
Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- Martensite–austenite transformation kinetics of high Cr ferritic heat-resistant steel
- Ageing texture of hot rolled and solution treated Ti–Nb alloys
- Artificial aging of thixocast ZA27 alloy and particulate ZA27/SiCp composites
- Low cycle fatigue behavior under asymmetric loading of two AZ31B magnesium alloys with different microstructures and textures
- Mechanical properties of aluminum extruded via the KOBO method with direct and lateral outflow
- Hot compression deformation of an Mg–2.54Nd–0.26Zn–0.32Zr alloy
- Evaluation of the sliding performance of polyamide, poly-oxy-methylene and their composites
- Corrosion behaviour of AISI 204Cu and AISI 304 stainless steels in simulated pore solution
- Comparing the corrosion behavior of nanograined and coarse-grained interstitial free steels
- Electrochemical investigation of the effect of different laser surface treatments on Hastelloy G alloy
- Influence of sputtering gas pressure on properties of transparent conducting Si-doped zinc oxide films
- Cu2SnS3 absorber thin films prepared via successive ionic layer adsorption and reaction method
- Nano preparation of Dy3+ substituted ceria via urea-formaldehyde gel combustion route
- Short Communications
- Preparation of ZrB2-based nanocomposites with limited grain growth by means of low-temperature hot-pressing using Cu additive
- Combustion synthesis of Ti2SC
- People
- Prof. Dr. Tomaž Kosmač
- DGM News
- DGM News