The high temperature oxidation behavior of Mg–Nd alloys. Part II: The effect of the two-phase microstructure on the on-set of oxidation and on oxide morphology
•Two-phase alloys show different oxidation behavior than the single-phase alloys.•A non-uniform oxide film forms on two-phase Mg–Nd alloys.•The intermetallics act as diffusion paths for O to the metal/oxide interface.•The oxide scale consists of Nd2O3/MgO structure and a subscale rich in Nd2O3. The...
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| Veröffentlicht in: | Journal of alloys and compounds 2014-01, Vol.584, p.558-565 |
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| container_title | Journal of alloys and compounds |
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| creator | Aydin, D.S. Bayindir, Z. Pekguleryuz, M.O. |
| description | •Two-phase alloys show different oxidation behavior than the single-phase alloys.•A non-uniform oxide film forms on two-phase Mg–Nd alloys.•The intermetallics act as diffusion paths for O to the metal/oxide interface.•The oxide scale consists of Nd2O3/MgO structure and a subscale rich in Nd2O3.
The oxidation behavior of two-phase Mg–Nd alloys was investigated via isothermal heating experiments conducted in dry air at 500 °C for 12h. Thermodynamic assessment of the onset of oxidation suggested a possible oxidation sequence of Nd oxidation from the intermetallic phase, Mg oxidation from the intermetallic and the α-Mg phases, and then Nd oxidation from α-Mg. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) revealed a mixed MgO–Nd2O3 scale formation on the surfaces with a Nd2O3 rich subscale. Dual oxide morphology evolved during the oxidation process that mimics the two-phase microstructure of the alloys. This heterogeneous scale formation on the surface was attributed to the differing oxidation behavior of the two phases (α-Mg and Mg12Nd) in the alloys. |
| doi_str_mv | 10.1016/j.jallcom.2013.09.110 |
| format | Article |
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The oxidation behavior of two-phase Mg–Nd alloys was investigated via isothermal heating experiments conducted in dry air at 500 °C for 12h. Thermodynamic assessment of the onset of oxidation suggested a possible oxidation sequence of Nd oxidation from the intermetallic phase, Mg oxidation from the intermetallic and the α-Mg phases, and then Nd oxidation from α-Mg. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) revealed a mixed MgO–Nd2O3 scale formation on the surfaces with a Nd2O3 rich subscale. Dual oxide morphology evolved during the oxidation process that mimics the two-phase microstructure of the alloys. This heterogeneous scale formation on the surface was attributed to the differing oxidation behavior of the two phases (α-Mg and Mg12Nd) in the alloys.</description><identifier>ISSN: 0925-8388</identifier><identifier>EISSN: 1873-4669</identifier><identifier>DOI: 10.1016/j.jallcom.2013.09.110</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Alloys ; Applied sciences ; Corrosion ; Corrosion environments ; Exact sciences and technology ; Kinetics ; Magnesium base alloys ; Metals and alloys ; Metals. Metallurgy ; Microstructure ; Morphology ; Oxidation ; Oxides ; Photoelectron spectroscopy ; Scanning electron microscopy ; X-ray photoelectron spectroscopy ; X-rays</subject><ispartof>Journal of alloys and compounds, 2014-01, Vol.584, p.558-565</ispartof><rights>2013 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c438t-4c370aa8677ed5584495a9e477de2f98d66ac02e4cff79f7eb719df0b5264b553</citedby><cites>FETCH-LOGICAL-c438t-4c370aa8677ed5584495a9e477de2f98d66ac02e4cff79f7eb719df0b5264b553</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0925838813022731$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27903,27904,65309</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28264637$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Aydin, D.S.</creatorcontrib><creatorcontrib>Bayindir, Z.</creatorcontrib><creatorcontrib>Pekguleryuz, M.O.</creatorcontrib><title>The high temperature oxidation behavior of Mg–Nd alloys. Part II: The effect of the two-phase microstructure on the on-set of oxidation and on oxide morphology</title><title>Journal of alloys and compounds</title><description>•Two-phase alloys show different oxidation behavior than the single-phase alloys.•A non-uniform oxide film forms on two-phase Mg–Nd alloys.•The intermetallics act as diffusion paths for O to the metal/oxide interface.•The oxide scale consists of Nd2O3/MgO structure and a subscale rich in Nd2O3.
The oxidation behavior of two-phase Mg–Nd alloys was investigated via isothermal heating experiments conducted in dry air at 500 °C for 12h. Thermodynamic assessment of the onset of oxidation suggested a possible oxidation sequence of Nd oxidation from the intermetallic phase, Mg oxidation from the intermetallic and the α-Mg phases, and then Nd oxidation from α-Mg. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) revealed a mixed MgO–Nd2O3 scale formation on the surfaces with a Nd2O3 rich subscale. Dual oxide morphology evolved during the oxidation process that mimics the two-phase microstructure of the alloys. This heterogeneous scale formation on the surface was attributed to the differing oxidation behavior of the two phases (α-Mg and Mg12Nd) in the alloys.</description><subject>Alloys</subject><subject>Applied sciences</subject><subject>Corrosion</subject><subject>Corrosion environments</subject><subject>Exact sciences and technology</subject><subject>Kinetics</subject><subject>Magnesium base alloys</subject><subject>Metals and alloys</subject><subject>Metals. Metallurgy</subject><subject>Microstructure</subject><subject>Morphology</subject><subject>Oxidation</subject><subject>Oxides</subject><subject>Photoelectron spectroscopy</subject><subject>Scanning electron microscopy</subject><subject>X-ray photoelectron spectroscopy</subject><subject>X-rays</subject><issn>0925-8388</issn><issn>1873-4669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNkc2O0zAUhSMEEmXgEZC8QWKTYMfxHxuERvxUGn4Ww9pynevGVRIX2x3ojnfgCXg1ngRnWsFyWFn2_e458jlV9ZTghmDCX-yanRlHG6amxYQ2WDWE4HvVikhB645zdb9aYdWyWlIpH1aPUtphjImiZFX9uh4ADX47oAzTHqLJhwgofPe9yT7MaAODufEhouDQh-3vHz8_9qiYhWNq0GcTM1qvX6JFA5wDmxcsl1v-Fur9YBKgydsYUo4He1Keb-dhrhPc0v-szNwv4-WhrIW4H8IYtsfH1QNnxgRPzudF9eXtm-vL9_XVp3fry9dXte2ozHVnqcDGSC4E9IzJrlPMKOiE6KF1SvacG4tb6KxzQjkBG0FU7_CGtbzbMEYvqucn3X0MXw-Qsp58sjCOZoZwSJoUZdW1Uqi7UUZJSVgw8j8oVpK3lBeUndAlsBTB6X30k4lHTbBeitY7fS5aL0VrrHQpuuw9O1uYZM3oopmtT3-XW1k-yKko3KsTByXFGw9RJ-thttD7WKrTffB3OP0BQz7DWA</recordid><startdate>20140125</startdate><enddate>20140125</enddate><creator>Aydin, D.S.</creator><creator>Bayindir, Z.</creator><creator>Pekguleryuz, M.O.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20140125</creationdate><title>The high temperature oxidation behavior of Mg–Nd alloys. Part II: The effect of the two-phase microstructure on the on-set of oxidation and on oxide morphology</title><author>Aydin, D.S. ; Bayindir, Z. ; Pekguleryuz, M.O.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c438t-4c370aa8677ed5584495a9e477de2f98d66ac02e4cff79f7eb719df0b5264b553</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Alloys</topic><topic>Applied sciences</topic><topic>Corrosion</topic><topic>Corrosion environments</topic><topic>Exact sciences and technology</topic><topic>Kinetics</topic><topic>Magnesium base alloys</topic><topic>Metals and alloys</topic><topic>Metals. Metallurgy</topic><topic>Microstructure</topic><topic>Morphology</topic><topic>Oxidation</topic><topic>Oxides</topic><topic>Photoelectron spectroscopy</topic><topic>Scanning electron microscopy</topic><topic>X-ray photoelectron spectroscopy</topic><topic>X-rays</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Aydin, D.S.</creatorcontrib><creatorcontrib>Bayindir, Z.</creatorcontrib><creatorcontrib>Pekguleryuz, M.O.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of alloys and compounds</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Aydin, D.S.</au><au>Bayindir, Z.</au><au>Pekguleryuz, M.O.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The high temperature oxidation behavior of Mg–Nd alloys. Part II: The effect of the two-phase microstructure on the on-set of oxidation and on oxide morphology</atitle><jtitle>Journal of alloys and compounds</jtitle><date>2014-01-25</date><risdate>2014</risdate><volume>584</volume><spage>558</spage><epage>565</epage><pages>558-565</pages><issn>0925-8388</issn><eissn>1873-4669</eissn><abstract>•Two-phase alloys show different oxidation behavior than the single-phase alloys.•A non-uniform oxide film forms on two-phase Mg–Nd alloys.•The intermetallics act as diffusion paths for O to the metal/oxide interface.•The oxide scale consists of Nd2O3/MgO structure and a subscale rich in Nd2O3.
The oxidation behavior of two-phase Mg–Nd alloys was investigated via isothermal heating experiments conducted in dry air at 500 °C for 12h. Thermodynamic assessment of the onset of oxidation suggested a possible oxidation sequence of Nd oxidation from the intermetallic phase, Mg oxidation from the intermetallic and the α-Mg phases, and then Nd oxidation from α-Mg. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) revealed a mixed MgO–Nd2O3 scale formation on the surfaces with a Nd2O3 rich subscale. Dual oxide morphology evolved during the oxidation process that mimics the two-phase microstructure of the alloys. This heterogeneous scale formation on the surface was attributed to the differing oxidation behavior of the two phases (α-Mg and Mg12Nd) in the alloys.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jallcom.2013.09.110</doi><tpages>8</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Alloys Applied sciences Corrosion Corrosion environments Exact sciences and technology Kinetics Magnesium base alloys Metals and alloys Metals. Metallurgy Microstructure Morphology Oxidation Oxides Photoelectron spectroscopy Scanning electron microscopy X-ray photoelectron spectroscopy X-rays |
| title | The high temperature oxidation behavior of Mg–Nd alloys. Part II: The effect of the two-phase microstructure on the on-set of oxidation and on oxide morphology |
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