XPS study on the passivity of coarse-grained polycrystalline and electrodeposited nanocrystalline nickel-iron (NiFe) alloys
[Display omitted] •Using PARXPS, passive films on NiFe alloys of varying grain size were investigated.•Poly- and nanocrystalline NiFe alloys exhibited similar passive film compositions.•Grain size reduction increases the anodic activity of the alloy, affecting passivity.•Current transients suggested...
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| Veröffentlicht in: | Corrosion science 2020-11, Vol.176, p.108902, Article 108902 |
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| container_title | Corrosion science |
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| creator | Monaco, Leo Sodhi, Rana N.S. Palumbo, Gino Erb, Uwe |
| description | [Display omitted]
•Using PARXPS, passive films on NiFe alloys of varying grain size were investigated.•Poly- and nanocrystalline NiFe alloys exhibited similar passive film compositions.•Grain size reduction increases the anodic activity of the alloy, affecting passivity.•Current transients suggested increased passivation kinetics for nano NiFe alloys.•Passive currents of poly- and nanocrystalline NiFe were similar (order-of-magnitude).
Electrodeposited nanocrystalline NiFe alloys are compared to their polycrystalline, coarse-grained counterparts to understand the effects of grain size reduction on the passivation kinetics and the chemical structure of the passive film. The passive film formed in acidic sulfate environment was characterized using parallel angle-resolved XPS (PARXPS) to obtain non-destructive compositional depth profiles. The composition (Ni:Fe) of the passive film was insensitive to grain size; however, grain size reduction resulted in increased anodic activity producing thicker films that contained increased concentrations of higher oxide species. |
| doi_str_mv | 10.1016/j.corsci.2020.108902 |
| format | Article |
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•Using PARXPS, passive films on NiFe alloys of varying grain size were investigated.•Poly- and nanocrystalline NiFe alloys exhibited similar passive film compositions.•Grain size reduction increases the anodic activity of the alloy, affecting passivity.•Current transients suggested increased passivation kinetics for nano NiFe alloys.•Passive currents of poly- and nanocrystalline NiFe were similar (order-of-magnitude).
Electrodeposited nanocrystalline NiFe alloys are compared to their polycrystalline, coarse-grained counterparts to understand the effects of grain size reduction on the passivation kinetics and the chemical structure of the passive film. The passive film formed in acidic sulfate environment was characterized using parallel angle-resolved XPS (PARXPS) to obtain non-destructive compositional depth profiles. The composition (Ni:Fe) of the passive film was insensitive to grain size; however, grain size reduction resulted in increased anodic activity producing thicker films that contained increased concentrations of higher oxide species.</description><identifier>ISSN: 0010-938X</identifier><identifier>EISSN: 1879-0496</identifier><identifier>DOI: 10.1016/j.corsci.2020.108902</identifier><language>eng</language><publisher>Amsterdam: Elsevier Ltd</publisher><subject>Anodic dissolution (C) ; Grain size ; Intermetallic compounds ; Iron (A) ; Iron compounds ; Nanocrystals ; Nickel (A) ; Nickel base alloys ; Nickel compounds ; Nickel iron ; Passivity (C) ; Polarization (B) ; Polycrystals ; Size reduction ; XPS (B)</subject><ispartof>Corrosion science, 2020-11, Vol.176, p.108902, Article 108902</ispartof><rights>2020 Elsevier Ltd</rights><rights>Copyright Elsevier BV Nov 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-4ce9409c677abf6bca9b94ddcd69522f6edda77da55fabbdd183cb4a5ced70083</citedby><cites>FETCH-LOGICAL-c334t-4ce9409c677abf6bca9b94ddcd69522f6edda77da55fabbdd183cb4a5ced70083</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.corsci.2020.108902$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Monaco, Leo</creatorcontrib><creatorcontrib>Sodhi, Rana N.S.</creatorcontrib><creatorcontrib>Palumbo, Gino</creatorcontrib><creatorcontrib>Erb, Uwe</creatorcontrib><title>XPS study on the passivity of coarse-grained polycrystalline and electrodeposited nanocrystalline nickel-iron (NiFe) alloys</title><title>Corrosion science</title><description>[Display omitted]
•Using PARXPS, passive films on NiFe alloys of varying grain size were investigated.•Poly- and nanocrystalline NiFe alloys exhibited similar passive film compositions.•Grain size reduction increases the anodic activity of the alloy, affecting passivity.•Current transients suggested increased passivation kinetics for nano NiFe alloys.•Passive currents of poly- and nanocrystalline NiFe were similar (order-of-magnitude).
Electrodeposited nanocrystalline NiFe alloys are compared to their polycrystalline, coarse-grained counterparts to understand the effects of grain size reduction on the passivation kinetics and the chemical structure of the passive film. The passive film formed in acidic sulfate environment was characterized using parallel angle-resolved XPS (PARXPS) to obtain non-destructive compositional depth profiles. The composition (Ni:Fe) of the passive film was insensitive to grain size; however, grain size reduction resulted in increased anodic activity producing thicker films that contained increased concentrations of higher oxide species.</description><subject>Anodic dissolution (C)</subject><subject>Grain size</subject><subject>Intermetallic compounds</subject><subject>Iron (A)</subject><subject>Iron compounds</subject><subject>Nanocrystals</subject><subject>Nickel (A)</subject><subject>Nickel base alloys</subject><subject>Nickel compounds</subject><subject>Nickel iron</subject><subject>Passivity (C)</subject><subject>Polarization (B)</subject><subject>Polycrystals</subject><subject>Size reduction</subject><subject>XPS (B)</subject><issn>0010-938X</issn><issn>1879-0496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kM1KxDAURoMoOI6-gYuAG110TPqfjSCDo8KgggqzC2lyq6m1qUlmoPjyptSFK1eBL-fej3sQOqVkQQnNL5uFNNZJvYhJPEYlI_EemtGyYBFJWb6PZoRQErGk3ByiI-caQgJJyQx9b56esfNbNWDTYf8OuBfO6Z32IaixNMI6iN6s0B0o3Jt2kHZwXrRtCLDoFIYWpLdGQW-c9gHqRGf-Qp2WH9BG2oaC8we9ggscfszgjtFBLVoHJ7_vHL2ubl6Wd9H68fZ-eb2OZJKkPkolsJQwmReFqOq8koJVLFVKqpxlcVznoJQoCiWyrBZVpRQtE1mlIpOgCkLKZI7Opr29NV9bcJ43Zmu7UMnjtCgpDdpGKp0oaY1zFmreW_0p7MAp4aNm3vBJMx8180lzGLuaxiBcsNNgeSCgC93aBjFcGf3_gh-LRovZ</recordid><startdate>202011</startdate><enddate>202011</enddate><creator>Monaco, Leo</creator><creator>Sodhi, Rana N.S.</creator><creator>Palumbo, Gino</creator><creator>Erb, Uwe</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SE</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope></search><sort><creationdate>202011</creationdate><title>XPS study on the passivity of coarse-grained polycrystalline and electrodeposited nanocrystalline nickel-iron (NiFe) alloys</title><author>Monaco, Leo ; Sodhi, Rana N.S. ; Palumbo, Gino ; Erb, Uwe</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c334t-4ce9409c677abf6bca9b94ddcd69522f6edda77da55fabbdd183cb4a5ced70083</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Anodic dissolution (C)</topic><topic>Grain size</topic><topic>Intermetallic compounds</topic><topic>Iron (A)</topic><topic>Iron compounds</topic><topic>Nanocrystals</topic><topic>Nickel (A)</topic><topic>Nickel base alloys</topic><topic>Nickel compounds</topic><topic>Nickel iron</topic><topic>Passivity (C)</topic><topic>Polarization (B)</topic><topic>Polycrystals</topic><topic>Size reduction</topic><topic>XPS (B)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Monaco, Leo</creatorcontrib><creatorcontrib>Sodhi, Rana N.S.</creatorcontrib><creatorcontrib>Palumbo, Gino</creatorcontrib><creatorcontrib>Erb, Uwe</creatorcontrib><collection>CrossRef</collection><collection>Corrosion Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><jtitle>Corrosion science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Monaco, Leo</au><au>Sodhi, Rana N.S.</au><au>Palumbo, Gino</au><au>Erb, Uwe</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>XPS study on the passivity of coarse-grained polycrystalline and electrodeposited nanocrystalline nickel-iron (NiFe) alloys</atitle><jtitle>Corrosion science</jtitle><date>2020-11</date><risdate>2020</risdate><volume>176</volume><spage>108902</spage><pages>108902-</pages><artnum>108902</artnum><issn>0010-938X</issn><eissn>1879-0496</eissn><abstract>[Display omitted]
•Using PARXPS, passive films on NiFe alloys of varying grain size were investigated.•Poly- and nanocrystalline NiFe alloys exhibited similar passive film compositions.•Grain size reduction increases the anodic activity of the alloy, affecting passivity.•Current transients suggested increased passivation kinetics for nano NiFe alloys.•Passive currents of poly- and nanocrystalline NiFe were similar (order-of-magnitude).
Electrodeposited nanocrystalline NiFe alloys are compared to their polycrystalline, coarse-grained counterparts to understand the effects of grain size reduction on the passivation kinetics and the chemical structure of the passive film. The passive film formed in acidic sulfate environment was characterized using parallel angle-resolved XPS (PARXPS) to obtain non-destructive compositional depth profiles. The composition (Ni:Fe) of the passive film was insensitive to grain size; however, grain size reduction resulted in increased anodic activity producing thicker films that contained increased concentrations of higher oxide species.</abstract><cop>Amsterdam</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.corsci.2020.108902</doi></addata></record> |
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| subjects | Anodic dissolution (C) Grain size Intermetallic compounds Iron (A) Iron compounds Nanocrystals Nickel (A) Nickel base alloys Nickel compounds Nickel iron Passivity (C) Polarization (B) Polycrystals Size reduction XPS (B) |
| title | XPS study on the passivity of coarse-grained polycrystalline and electrodeposited nanocrystalline nickel-iron (NiFe) alloys |
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