Enhanced pitting resistance of Al-based coating by synergistic passivation effect from different shapes of Ni/Cr powders
s Cold-sprayed Al-based coatings are widely used in corrosion protection fields, but they are poor in pitting resistance. In order to enhance the pitting resistance of Al-based coatings, dendritic Ni and irregular Cr powders are co-doped into Al powders to prepare Al-Ni–Cr composite coatings by cold...
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| Veröffentlicht in: | Journal of solid state electrochemistry 2025, Vol.29 (1), p.275-288 |
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| container_title | Journal of solid state electrochemistry |
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| creator | Yuan, Binkai Zhang, Liuyan Han, Zhaokang Mo, Luliang Zhang, Yiying Shen, Gengzhe Lin, Qian Tan, Guibin |
| description | s
Cold-sprayed Al-based coatings are widely used in corrosion protection fields, but they are poor in pitting resistance. In order to enhance the pitting resistance of Al-based coatings, dendritic Ni and irregular Cr powders are co-doped into Al powders to prepare Al-Ni–Cr composite coatings by cold spraying. Their structure, composition, and corrosion behavior are characterized by optical microscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), dynamic potential polarization, and electrochemical impedance spectroscopy. The results show that the Al-Ni-30Cr coating exhibits the best corrosion resistance with high
E
pit
, small
i
corr
and
i
pass
, large
R
ct
, and superior self-healing ability. The protective corrosion products rapidly form in the early stage of corrosion, which can effectively fill corrosion pits and intrinsic pores in coatings, preventing further penetration of corrosive media and the continuation of auto-catalytic corrosion reaction of Cl
−
in the pits. The excellent anti-corrosion performance and long service life of the Al-Ni-30Cr coating are attributed to the self-healing ability and the synergistic shielding effect of nickel and chromium. |
| doi_str_mv | 10.1007/s10008-024-06058-3 |
| format | Article |
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Cold-sprayed Al-based coatings are widely used in corrosion protection fields, but they are poor in pitting resistance. In order to enhance the pitting resistance of Al-based coatings, dendritic Ni and irregular Cr powders are co-doped into Al powders to prepare Al-Ni–Cr composite coatings by cold spraying. Their structure, composition, and corrosion behavior are characterized by optical microscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), dynamic potential polarization, and electrochemical impedance spectroscopy. The results show that the Al-Ni-30Cr coating exhibits the best corrosion resistance with high
E
pit
, small
i
corr
and
i
pass
, large
R
ct
, and superior self-healing ability. The protective corrosion products rapidly form in the early stage of corrosion, which can effectively fill corrosion pits and intrinsic pores in coatings, preventing further penetration of corrosive media and the continuation of auto-catalytic corrosion reaction of Cl
−
in the pits. The excellent anti-corrosion performance and long service life of the Al-Ni-30Cr coating are attributed to the self-healing ability and the synergistic shielding effect of nickel and chromium.</description><identifier>ISSN: 1432-8488</identifier><identifier>EISSN: 1433-0768</identifier><identifier>DOI: 10.1007/s10008-024-06058-3</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Aluminum ; Analytical Chemistry ; Characterization and Evaluation of Materials ; Chemistry ; Chemistry and Materials Science ; Coating effects ; Cold spraying ; Condensed Matter Physics ; Corrosion ; Corrosion effects ; Corrosion prevention ; Corrosion products ; Corrosion resistance ; Dendritic powders ; Electrochemical impedance spectroscopy ; Electrochemistry ; Energy Storage ; Low temperature resistance ; Microscopy ; Nickel chromium alloys ; Optical microscopy ; Original Paper ; Penetration resistance ; Physical Chemistry ; Pitting (corrosion) ; Powder spraying ; Protective coatings ; Self healing materials ; Service life</subject><ispartof>Journal of solid state electrochemistry, 2025, Vol.29 (1), p.275-288</ispartof><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024 Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><rights>Copyright Springer Nature B.V. 2025</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c200t-3b5124bcbe1b5971852267365e3de8c10be77aedcda83e66106d789c2c5217f33</cites><orcidid>0000-0001-7089-1089</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10008-024-06058-3$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10008-024-06058-3$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Yuan, Binkai</creatorcontrib><creatorcontrib>Zhang, Liuyan</creatorcontrib><creatorcontrib>Han, Zhaokang</creatorcontrib><creatorcontrib>Mo, Luliang</creatorcontrib><creatorcontrib>Zhang, Yiying</creatorcontrib><creatorcontrib>Shen, Gengzhe</creatorcontrib><creatorcontrib>Lin, Qian</creatorcontrib><creatorcontrib>Tan, Guibin</creatorcontrib><title>Enhanced pitting resistance of Al-based coating by synergistic passivation effect from different shapes of Ni/Cr powders</title><title>Journal of solid state electrochemistry</title><addtitle>J Solid State Electrochem</addtitle><description>s
Cold-sprayed Al-based coatings are widely used in corrosion protection fields, but they are poor in pitting resistance. In order to enhance the pitting resistance of Al-based coatings, dendritic Ni and irregular Cr powders are co-doped into Al powders to prepare Al-Ni–Cr composite coatings by cold spraying. Their structure, composition, and corrosion behavior are characterized by optical microscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), dynamic potential polarization, and electrochemical impedance spectroscopy. The results show that the Al-Ni-30Cr coating exhibits the best corrosion resistance with high
E
pit
, small
i
corr
and
i
pass
, large
R
ct
, and superior self-healing ability. The protective corrosion products rapidly form in the early stage of corrosion, which can effectively fill corrosion pits and intrinsic pores in coatings, preventing further penetration of corrosive media and the continuation of auto-catalytic corrosion reaction of Cl
−
in the pits. The excellent anti-corrosion performance and long service life of the Al-Ni-30Cr coating are attributed to the self-healing ability and the synergistic shielding effect of nickel and chromium.</description><subject>Aluminum</subject><subject>Analytical Chemistry</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Coating effects</subject><subject>Cold spraying</subject><subject>Condensed Matter Physics</subject><subject>Corrosion</subject><subject>Corrosion effects</subject><subject>Corrosion prevention</subject><subject>Corrosion products</subject><subject>Corrosion resistance</subject><subject>Dendritic powders</subject><subject>Electrochemical impedance spectroscopy</subject><subject>Electrochemistry</subject><subject>Energy Storage</subject><subject>Low temperature resistance</subject><subject>Microscopy</subject><subject>Nickel chromium alloys</subject><subject>Optical microscopy</subject><subject>Original Paper</subject><subject>Penetration resistance</subject><subject>Physical Chemistry</subject><subject>Pitting (corrosion)</subject><subject>Powder spraying</subject><subject>Protective coatings</subject><subject>Self healing materials</subject><subject>Service life</subject><issn>1432-8488</issn><issn>1433-0768</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2025</creationdate><recordtype>article</recordtype><recordid>eNp9UMtOwzAQtBBIlMIPcLLE2dSPJHaOVVUeUgUXOFuOs2lTtUnwpkD_HqdB4sZlXzM7qx1CbgW_F5zrGcbIDeMyYTzjqWHqjExEohTjOjPnp1oykxhzSa4Qt5wLnQk-Id_LZuMaDyXt6r6vmzUNgDX2w4y2FZ3vWOEwwr51J7g4Ujw2ENaRVHvaOcT6M0JtQ6GqwPe0Cu2elnVsAjQ9xY3rAAetl3q2CLRrv0oIeE0uKrdDuPnNU_L-sHxbPLHV6-PzYr5iXnLeM1WkQiaFL0AUaa6FSaXMtMpSUCUYL3gBWjsofemMgiz-lJXa5F76VApdKTUld6NuF9qPA2Bvt-0hNPGkVSJVQuZpLiJLjiwfWsQAle1CvXfhaAW3g8N2dNhGh-3JYTtIq3EJI7lZQ_iT_mfrB0EJf40</recordid><startdate>2025</startdate><enddate>2025</enddate><creator>Yuan, Binkai</creator><creator>Zhang, Liuyan</creator><creator>Han, Zhaokang</creator><creator>Mo, Luliang</creator><creator>Zhang, Yiying</creator><creator>Shen, Gengzhe</creator><creator>Lin, Qian</creator><creator>Tan, Guibin</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0001-7089-1089</orcidid></search><sort><creationdate>2025</creationdate><title>Enhanced pitting resistance of Al-based coating by synergistic passivation effect from different shapes of Ni/Cr powders</title><author>Yuan, Binkai ; Zhang, Liuyan ; Han, Zhaokang ; Mo, Luliang ; Zhang, Yiying ; Shen, Gengzhe ; Lin, Qian ; Tan, Guibin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c200t-3b5124bcbe1b5971852267365e3de8c10be77aedcda83e66106d789c2c5217f33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2025</creationdate><topic>Aluminum</topic><topic>Analytical Chemistry</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Coating effects</topic><topic>Cold spraying</topic><topic>Condensed Matter Physics</topic><topic>Corrosion</topic><topic>Corrosion effects</topic><topic>Corrosion prevention</topic><topic>Corrosion products</topic><topic>Corrosion resistance</topic><topic>Dendritic powders</topic><topic>Electrochemical impedance spectroscopy</topic><topic>Electrochemistry</topic><topic>Energy Storage</topic><topic>Low temperature resistance</topic><topic>Microscopy</topic><topic>Nickel chromium alloys</topic><topic>Optical microscopy</topic><topic>Original Paper</topic><topic>Penetration resistance</topic><topic>Physical Chemistry</topic><topic>Pitting (corrosion)</topic><topic>Powder spraying</topic><topic>Protective coatings</topic><topic>Self healing materials</topic><topic>Service life</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yuan, Binkai</creatorcontrib><creatorcontrib>Zhang, Liuyan</creatorcontrib><creatorcontrib>Han, Zhaokang</creatorcontrib><creatorcontrib>Mo, Luliang</creatorcontrib><creatorcontrib>Zhang, Yiying</creatorcontrib><creatorcontrib>Shen, Gengzhe</creatorcontrib><creatorcontrib>Lin, Qian</creatorcontrib><creatorcontrib>Tan, Guibin</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of solid state electrochemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yuan, Binkai</au><au>Zhang, Liuyan</au><au>Han, Zhaokang</au><au>Mo, Luliang</au><au>Zhang, Yiying</au><au>Shen, Gengzhe</au><au>Lin, Qian</au><au>Tan, Guibin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhanced pitting resistance of Al-based coating by synergistic passivation effect from different shapes of Ni/Cr powders</atitle><jtitle>Journal of solid state electrochemistry</jtitle><stitle>J Solid State Electrochem</stitle><date>2025</date><risdate>2025</risdate><volume>29</volume><issue>1</issue><spage>275</spage><epage>288</epage><pages>275-288</pages><issn>1432-8488</issn><eissn>1433-0768</eissn><abstract>s
Cold-sprayed Al-based coatings are widely used in corrosion protection fields, but they are poor in pitting resistance. In order to enhance the pitting resistance of Al-based coatings, dendritic Ni and irregular Cr powders are co-doped into Al powders to prepare Al-Ni–Cr composite coatings by cold spraying. Their structure, composition, and corrosion behavior are characterized by optical microscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), dynamic potential polarization, and electrochemical impedance spectroscopy. The results show that the Al-Ni-30Cr coating exhibits the best corrosion resistance with high
E
pit
, small
i
corr
and
i
pass
, large
R
ct
, and superior self-healing ability. The protective corrosion products rapidly form in the early stage of corrosion, which can effectively fill corrosion pits and intrinsic pores in coatings, preventing further penetration of corrosive media and the continuation of auto-catalytic corrosion reaction of Cl
−
in the pits. The excellent anti-corrosion performance and long service life of the Al-Ni-30Cr coating are attributed to the self-healing ability and the synergistic shielding effect of nickel and chromium.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s10008-024-06058-3</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0001-7089-1089</orcidid></addata></record> |
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| subjects | Aluminum Analytical Chemistry Characterization and Evaluation of Materials Chemistry Chemistry and Materials Science Coating effects Cold spraying Condensed Matter Physics Corrosion Corrosion effects Corrosion prevention Corrosion products Corrosion resistance Dendritic powders Electrochemical impedance spectroscopy Electrochemistry Energy Storage Low temperature resistance Microscopy Nickel chromium alloys Optical microscopy Original Paper Penetration resistance Physical Chemistry Pitting (corrosion) Powder spraying Protective coatings Self healing materials Service life |
| title | Enhanced pitting resistance of Al-based coating by synergistic passivation effect from different shapes of Ni/Cr powders |
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