ISSN:
0003-5599
Source:
Emerald Fulltext Archive Database 1994-2005
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
A study was undertaken to investigate the isothermal oxidation behaviour of Ni-Cr binary alloys with 10, 20 and 30?wt per cent Cr exposed in air for 50?h at 1,000°C. Analytical transmission electron microscopy along with light microscopy and X-ray diffraction were used to characterise the oxide scale. It was observed that the scaling behaviour exhibited by the Ni-Cr alloys changes from generally "non-protective" to "protective" as their Cr content increases from 10 to 30?wt per cent. The Ni-10Cr alloy formed a continuous network of NiO leading to scales of high thickness while Ni-30Cr exhibited only a-Cr2O3 at its surface. The Ni-20Cr alloy exhibited all three oxide phases and an intermediate scaling behaviour.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1108/00035590410533174
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