Abstract
The combustion behaviour and underlying mechanism of a Cu-Ni-Mn alloy solution treated at 880 ℃ and aged at 450 ℃ for different time are studied. The oxidation of elements is found to follow the sequence of Mn→Ni→Cu. The remaining length of solution-treated specimens is found to increase under higher oxygen pressures, whereas that of aged specimens show no distinct dependency on oxygen pressures. The different combustion behaviors are attributed to diffusion pathways of Mn and O atoms, i.e., continuous diffusion of Mn atoms in the solution-treated samples and diffusion from the precipitates in aged ones.
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