Low temperature oxidation of Cr-alloyed MoSi2
Artikel i övriga tidskrifter, 2007

Cr-alloyed MOSi2 was compared with monolithic MOSi2 with respect to oxidation at 450 degrees C for 456 h. Phases formed on Cr-alloyed MOSi2 after exposure are Cr-2(MoO4)(3), MoO3, and cristobalite NOD according to X-ray diffraction results. Monolithic MOSi2 forms MoO3 and mainly amorphous SiO2. X-ray photoelectron spectroscopy indicates that the main oxidation product on the outermost surface is SiO2 for all studied samples. The samples form a relatively loose oxide but the oxide adherence improves with increasing Cr content. It is indicated that Cr addition can benefit pesting control in MOSi2.

pesting

molybdenum silicides

alloying

oxidation

Författare

E. Strom

Yu Cao

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

Yiming Yao

Chalmers, Material- och tillverkningsteknik, Materialteknologi

Transactions of Nonferrous Metals Society of China (English Edition)

1003-6326 (ISSN)

Vol. 17 6 1282-1286

Ämneskategorier

Materialteknik

Styrkeområden

Produktion

Materialvetenskap

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2017-10-08