CORRELATION BETWEEN OXIDATION BEHAVIOUR AND BORON CONTENT IN Ni_3Al
GUO Jianting;SUN Chao;LI Hui;GUAN Hengrong Institute of Metal Research; Academia Sinica; Shenyang
Cite this article:
GUO Jianting;SUN Chao;LI Hui;GUAN Hengrong Institute of Metal Research; Academia Sinica; Shenyang. CORRELATION BETWEEN OXIDATION BEHAVIOUR AND BORON CONTENT IN Ni_3Al. Acta Metall Sin, 1989, 25(4): 120-125.
Abstract The effect of boron content (0 to 2.22 at.-%) on isothermal oxida-tion behaviour of Ni_3Al at 750 to 1150℃ for 3 to 100h has been studied. Theresults show that the isothermal oxidation kinetics of Ni_3Al with various B contentsat different temperatures obeys the parabolic law. The compounds with 0.52 to1.37 at.%B show the best oxidation resistance. The morphology and microstructureof the scales have also been investigated.
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