论文部分内容阅读
The effect of boron content(0 to 2.22 at.-% )on isothermal oxidation behaviour of Ni_3Al at750 to 1150℃ for 3 to 100 h has been studied.The results show that the isothermal oxidationkinetics of Ni_3Al with various B contents at different temperatures obeys the parabolic law.The compounds with 0.52 to 1.37 at.-%B show the best oxidation resistance.The morphologyand microstructure of the scales have also been investigated.
The effect of boron content (0 to 2.22 at .-%) on isothermal oxidation behavior of Ni_3Al at750 to 1150 ° C for 3 to 100 h has been studied. The results show that the isothermal oxidation of nickel of Ni_3Al with various B contents at different temperatures obeys the parabolic law.The compounds with 0.52 to 1.37 at .-% B show the best oxidation resistance. The morphology and microstructure of the scales have also been investigated.