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The Use of the Aluminium Alloy in the Bicycle Industry
Hudec, Jiří ; Liškutín, Petr (referee) ; Liškutín, Petr (referee) ; Němec, Karel (advisor)
Bachelor's thesis deals with the aluminum alloys in the cycling industry. It contains information on the properties of aluminum and its alloys and the distribution of aluminum alloys according to certain criteria. It is discussed in more detail in the work of most alloys in the cycling industry - Al-Cu-Mg, Al-Mg-Si, Al-Mg-Zn and Al-Zn-Mg-Cu with examples, for which components are suitable alloys. Everything is accompanied by images in the enclosure at the end of work.
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Study of beta phase in Al-Mg-Si alloys by means of unconventional methods of electron microscopy
Ligas, Aleš ; Julišová, Martina (referee) ; Mikmeková, Šárka (advisor)
Aluminium Al-Mg-Si alloys are the most commonly used in automotive and construction industry. Hexagonal ’-phase is one of the metastable phases occured in this type of alloys. Unlike classic square -phase, this ’-phase is characterized by different crystalographic orientation to the matrix and shape. Standard method used for identification of aluminium alloys is scanning electron microscopy (SEM), because of its quickness and efficiency, but in case of very thin or damaged structures (as a result of metallographic process) it’s insufficient. Scanning low energy electron microscopy (SLEEM) can be appropriate for identification of mentioned precipitates due to its physical principles resulting in many advantages compared to SEM. So the most important benefits are interaction volume reduction (which leads to improvement of surface sensitivity), increase of material contrast (ability to change matrix / precipitates contrast) as well as crystalographic contrast.
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Study of beta phase in Al-Mg-Si alloys by means of unconventional methods of electron microscopy
Ligas, Aleš ; Julišová, Martina (referee) ; Mikmeková, Šárka (advisor)
Aluminium Al-Mg-Si alloys are the most commonly used in automotive and construction industry. Hexagonal ’-phase is one of the metastable phases occured in this type of alloys. Unlike classic square -phase, this ’-phase is characterized by different crystalographic orientation to the matrix and shape. Standard method used for identification of aluminium alloys is scanning electron microscopy (SEM), because of its quickness and efficiency, but in case of very thin or damaged structures (as a result of metallographic process) it’s insufficient. Scanning low energy electron microscopy (SLEEM) can be appropriate for identification of mentioned precipitates due to its physical principles resulting in many advantages compared to SEM. So the most important benefits are interaction volume reduction (which leads to improvement of surface sensitivity), increase of material contrast (ability to change matrix / precipitates contrast) as well as crystalographic contrast.
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The Use of the Aluminium Alloy in the Bicycle Industry
Hudec, Jiří ; Liškutín, Petr (referee) ; Liškutín, Petr (referee) ; Němec, Karel (advisor)
Bachelor's thesis deals with the aluminum alloys in the cycling industry. It contains information on the properties of aluminum and its alloys and the distribution of aluminum alloys according to certain criteria. It is discussed in more detail in the work of most alloys in the cycling industry - Al-Cu-Mg, Al-Mg-Si, Al-Mg-Zn and Al-Zn-Mg-Cu with examples, for which components are suitable alloys. Everything is accompanied by images in the enclosure at the end of work.
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