Improvement of cyclic oxidation resistance of a NiAl-based alloy modified by Dy
The effect of the rare-earth-element dysprosium on the cyclic oxidation behavior of NiAl–31Cr–3Mo alloy at 1300 and 1400 K in static air atmosphere was investigated in this paper. The results revealed that doping 0.1.% atom fraction of Dy greatly improved the cyclic oxidation resistance at 1300 and...
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| Veröffentlicht in: | Surface & coatings technology 2006-12, Vol.201 (6), p.2270-2275 |
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| creator | Zhang, Guangye Zhang, Hua Guo, Jianting |
| description | The effect of the rare-earth-element dysprosium on the cyclic oxidation behavior of NiAl–31Cr–3Mo alloy at 1300 and 1400 K in static air atmosphere was investigated in this paper. The results revealed that doping 0.1.% atom fraction of Dy greatly improved the cyclic oxidation resistance at 1300 and 1400 K. The microstructure and composition of the oxidation layer were studied by means of X-ray diffractometer (XRD), scanning electron microscopy (SEM) with EDAX unit. The oxidation scale, which is located on the surface of NiAl–31Cr–3Mo alloy, mainly consisted of α-Al2O3 and a little Cr2O3. While the continuous and sole α-Al2O3 scale formed on the surface of the alloys doped with the dysprosium. The adherency of scale improved due to a Cr-rich phase decreased the internal stress by thermal cycling and transformation of Al2O3 or transverse growing induced for the testing alloy modified by Dy. The oxidation mechanism was discussed from phase constitution. |
| doi_str_mv | 10.1016/j.surfcoat.2006.03.033 |
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The results revealed that doping 0.1.% atom fraction of Dy greatly improved the cyclic oxidation resistance at 1300 and 1400 K. The microstructure and composition of the oxidation layer were studied by means of X-ray diffractometer (XRD), scanning electron microscopy (SEM) with EDAX unit. The oxidation scale, which is located on the surface of NiAl–31Cr–3Mo alloy, mainly consisted of α-Al2O3 and a little Cr2O3. While the continuous and sole α-Al2O3 scale formed on the surface of the alloys doped with the dysprosium. The adherency of scale improved due to a Cr-rich phase decreased the internal stress by thermal cycling and transformation of Al2O3 or transverse growing induced for the testing alloy modified by Dy. The oxidation mechanism was discussed from phase constitution.</description><identifier>ISSN: 0257-8972</identifier><identifier>EISSN: 1879-3347</identifier><identifier>DOI: 10.1016/j.surfcoat.2006.03.033</identifier><identifier>CODEN: SCTEEJ</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Applied sciences ; Corrosion ; Corrosion environments ; Cyclic oxidation ; Dysprosium ; Exact sciences and technology ; Metals. Metallurgy ; NiAl ; Rare-earth-element</subject><ispartof>Surface & coatings technology, 2006-12, Vol.201 (6), p.2270-2275</ispartof><rights>2006 Elsevier B.V.</rights><rights>2007 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c404t-209015a523a7b9b81b0f8e8918fbae1656b903984e6a03cb1121d5f3fd9077bc3</citedby><cites>FETCH-LOGICAL-c404t-209015a523a7b9b81b0f8e8918fbae1656b903984e6a03cb1121d5f3fd9077bc3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.surfcoat.2006.03.033$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18394858$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhang, Guangye</creatorcontrib><creatorcontrib>Zhang, Hua</creatorcontrib><creatorcontrib>Guo, Jianting</creatorcontrib><title>Improvement of cyclic oxidation resistance of a NiAl-based alloy modified by Dy</title><title>Surface & coatings technology</title><description>The effect of the rare-earth-element dysprosium on the cyclic oxidation behavior of NiAl–31Cr–3Mo alloy at 1300 and 1400 K in static air atmosphere was investigated in this paper. The results revealed that doping 0.1.% atom fraction of Dy greatly improved the cyclic oxidation resistance at 1300 and 1400 K. The microstructure and composition of the oxidation layer were studied by means of X-ray diffractometer (XRD), scanning electron microscopy (SEM) with EDAX unit. The oxidation scale, which is located on the surface of NiAl–31Cr–3Mo alloy, mainly consisted of α-Al2O3 and a little Cr2O3. While the continuous and sole α-Al2O3 scale formed on the surface of the alloys doped with the dysprosium. The adherency of scale improved due to a Cr-rich phase decreased the internal stress by thermal cycling and transformation of Al2O3 or transverse growing induced for the testing alloy modified by Dy. The oxidation mechanism was discussed from phase constitution.</description><subject>Applied sciences</subject><subject>Corrosion</subject><subject>Corrosion environments</subject><subject>Cyclic oxidation</subject><subject>Dysprosium</subject><subject>Exact sciences and technology</subject><subject>Metals. Metallurgy</subject><subject>NiAl</subject><subject>Rare-earth-element</subject><issn>0257-8972</issn><issn>1879-3347</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqNkE1rGzEQQEVoIK6bvxD2kt7WGUm7K-lWkyapwTSX5Cwk7Qhkdq1EWofuv4-MU3psYGAY5s0Hj5ArCisKtLvZrfIheRfNtGIA3Qp4CX5GFlQKVXPeiC9kAawVtVSCXZCvOe8AgArVLMjjZnxJ8Q1H3E9V9JWb3RBcFf-E3kwh7quEOeTJ7B0e26b6HdZDbU3GvjLDEOdqjH3woZR2rn7O38i5N0PGy4-8JM_3d0-3v-rt48Pmdr2tXQPNVDNQQFvTMm6EVVZSC16iVFR6a5B2bWcVcCUb7AxwZylltG89970CIazjS_L9tLd8_3rAPOkxZIfDYPYYD1kz1TLWcPEJkEvOWlrA7gS6FHNO6PVLCqNJs6agj6L1Tv8VrY-iNfASvAxef1ww2ZnBpyIr5H_TkqtGtrJwP04cFi9vAZPOLmAR24eEbtJ9DP879Q54T5a_</recordid><startdate>20061204</startdate><enddate>20061204</enddate><creator>Zhang, Guangye</creator><creator>Zhang, Hua</creator><creator>Guo, Jianting</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>7QF</scope><scope>7SE</scope><scope>7SR</scope><scope>8BQ</scope><scope>JG9</scope></search><sort><creationdate>20061204</creationdate><title>Improvement of cyclic oxidation resistance of a NiAl-based alloy modified by Dy</title><author>Zhang, Guangye ; Zhang, Hua ; Guo, Jianting</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c404t-209015a523a7b9b81b0f8e8918fbae1656b903984e6a03cb1121d5f3fd9077bc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Applied sciences</topic><topic>Corrosion</topic><topic>Corrosion environments</topic><topic>Cyclic oxidation</topic><topic>Dysprosium</topic><topic>Exact sciences and technology</topic><topic>Metals. Metallurgy</topic><topic>NiAl</topic><topic>Rare-earth-element</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Guangye</creatorcontrib><creatorcontrib>Zhang, Hua</creatorcontrib><creatorcontrib>Guo, Jianting</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aluminium Industry Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Materials Research Database</collection><jtitle>Surface & coatings technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Guangye</au><au>Zhang, Hua</au><au>Guo, Jianting</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improvement of cyclic oxidation resistance of a NiAl-based alloy modified by Dy</atitle><jtitle>Surface & coatings technology</jtitle><date>2006-12-04</date><risdate>2006</risdate><volume>201</volume><issue>6</issue><spage>2270</spage><epage>2275</epage><pages>2270-2275</pages><issn>0257-8972</issn><eissn>1879-3347</eissn><coden>SCTEEJ</coden><abstract>The effect of the rare-earth-element dysprosium on the cyclic oxidation behavior of NiAl–31Cr–3Mo alloy at 1300 and 1400 K in static air atmosphere was investigated in this paper. The results revealed that doping 0.1.% atom fraction of Dy greatly improved the cyclic oxidation resistance at 1300 and 1400 K. The microstructure and composition of the oxidation layer were studied by means of X-ray diffractometer (XRD), scanning electron microscopy (SEM) with EDAX unit. The oxidation scale, which is located on the surface of NiAl–31Cr–3Mo alloy, mainly consisted of α-Al2O3 and a little Cr2O3. While the continuous and sole α-Al2O3 scale formed on the surface of the alloys doped with the dysprosium. The adherency of scale improved due to a Cr-rich phase decreased the internal stress by thermal cycling and transformation of Al2O3 or transverse growing induced for the testing alloy modified by Dy. The oxidation mechanism was discussed from phase constitution.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.surfcoat.2006.03.033</doi><tpages>6</tpages></addata></record> |
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| subjects | Applied sciences Corrosion Corrosion environments Cyclic oxidation Dysprosium Exact sciences and technology Metals. Metallurgy NiAl Rare-earth-element |
| title | Improvement of cyclic oxidation resistance of a NiAl-based alloy modified by Dy |
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