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Rare earth effects on adhesion of Cr2O3 oxide scale formed on surface of Co-40Cr alloy
Jin, HM; Zhang, LN; Li, MS; Li, TF
2001-03-01
Source PublicationJOURNAL OF RARE EARTHS
ISSN1002-0721
Volume19Issue:1Pages:34-39
AbstractIsothermal and cyclic oxidation behaviors of Co-40Cr alloy at 1000 degreesC in air were studied. Scanning electron microscopy (SEM) was used to examine the oxide scale formed on the surface of the alloy. By comparing the oxidation behaviors of Co-40Cr alloy and its 3 x 10(16) and 3 X 10(17)Y(+)/cm(2) implanted specimens, it was found that the resistant to oxidation property of Co-40Cr was greatly improved due to the implantation of yttrium. Acoustic emission was used to study the distribution of defects at the interface between the scale and alloy. Raman spectrum was also used to study the stress status in chromic scale formed on the surface of Co-40Cr with and without yttrium. The main reason for the improvement of resistant to oxidation property of Y-doped Co-40Cr probably is that yttrium can segregate to Cr2O3 grain boundaries and change the scale's growing mechanism and mechanical property. Most importantly, Y-implantation decreases the size and number of interfacial defects and the residual stress in the scale, and remarkably enhances the adhesion of chromia scale with Co-40Cr substrate.
Keywordrare earths adhesion oxidation acoustic emission Raman spectrum
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Applied
WOS IDWOS:000167546500009
PublisherINT ACADEMIC PUBL
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/111741
Collection中国科学院金属研究所
Affiliation1.Shenyang Univ Technol, Lab Corros & Protect, Shenyang 110023, Peoples R China
2.Chinese Acad Sci, Inst Corros & Protect Met, State Key Lab Corros Sci, Shenyang 110015, Peoples R China
Recommended Citation
GB/T 7714
Jin, HM,Zhang, LN,Li, MS,et al. Rare earth effects on adhesion of Cr2O3 oxide scale formed on surface of Co-40Cr alloy[J]. JOURNAL OF RARE EARTHS,2001,19(1):34-39.
APA Jin, HM,Zhang, LN,Li, MS,&Li, TF.(2001).Rare earth effects on adhesion of Cr2O3 oxide scale formed on surface of Co-40Cr alloy.JOURNAL OF RARE EARTHS,19(1),34-39.
MLA Jin, HM,et al."Rare earth effects on adhesion of Cr2O3 oxide scale formed on surface of Co-40Cr alloy".JOURNAL OF RARE EARTHS 19.1(2001):34-39.
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