Low temperature oxidation of Cr-alloyed MoSi2
Cr-alloyed MoSi2 was compared with monolithic MoSi2 with respect to oxidation at 450 ℃ for 456 h.Phases formed on Cr-alloyed MoSi2 after exposure are Cr2(MoO4)3,MoO3,and cristobalite (SiO2) 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.
molybdenum silicides pesting oxidation alloying
E.StrZ(o)m Y.Cao Y.M.Yao
Kanthal AB,Box 502,SE-734 27 Hallstahammar,Sweden Department of Materials and Manufacturing Technology,Chalmers University Technology,SE-412 96 Gothen
国际会议
2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)
长沙
英文
2007-11-28（万方平台首次上网日期，不代表论文的发表时间）