Cyclic Oxidation Behavior of the Ti–6Al–4V Alloy
| Autor: | Xiang Fan, Xiao-ge Duan, Haitao Jiang, Aimin Zhao, Shangwu Zeng, Xiao-Qian Yan |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Materials science
Scanning electron microscope Metallurgy Alloy Metals and Alloys Oxide Energy-dispersive X-ray spectroscopy engineering.material Atmospheric temperature range Inorganic Chemistry chemistry.chemical_compound chemistry Phase (matter) Materials Chemistry engineering Spallation Composite material Layer (electronics) |
| Zdroj: | Oxidation of Metals. 81:467-476 |
| ISSN: | 1573-4889 0030-770X |
| DOI: | 10.1007/s11085-013-9458-z |
| Popis: | The cyclic oxidation behavior of the Ti–6Al–4V alloy has been studied under heating and cooling conditions within a temperature range from 550 to 850 °C in air for up to 12 cycles. The mass changes, phase, surface morphologies, cross-sectional morphologies and element distribution of the oxide scales after cyclic oxidation were investigated using electronic microbalance, X-ray diffractometry, scanning electron microscopy and energy dispersive spectroscopy. The results show that the rate of oxidation was close to zero at 550 °C, obeyed parabolic and linear law at 650 and 850 °C, respectively, while at 750 °C, parabolic—linear law dominated. The double oxide scales formed on surface of the Ti–6Al–4V alloy consisted of an inner layer of TiO2 and an outer layer of Al2O3, and the thickness of oxide scales increased with an increasing oxidation temperature. At 750 and 850 °C, the cyclic oxidation resistance deteriorated owing to the formation of voids, cracks and the spallation of the oxide scales. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink