The influence of Sc and Zr additions on microstructure and corrosion behavior of AA5182 alloy sheet
Minor additions of Sc and Zr to a 5182 base alloy were used to study the effects of microstructure on the susceptibility to intergranular corrosion (IGC) of 5xxx sheet alloys. The results showed that minor Sc and Zr additions significantly decrease the IGC susceptibility as measured by the depth of...
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| Veröffentlicht in: | Corrosion science 2022-05, Vol.199, p.110181, Article 110181 |
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| creator | Qiu, Youcai Yang, Xiaofang Li, Jingxiao Xiang, Shihua Shi, Jie Xu, Junyao Sanders, Robert E. |
| description | Minor additions of Sc and Zr to a 5182 base alloy were used to study the effects of microstructure on the susceptibility to intergranular corrosion (IGC) of 5xxx sheet alloys. The results showed that minor Sc and Zr additions significantly decrease the IGC susceptibility as measured by the depth of IGC for the high-temperature annealed sheet. The improvement in IGC resistance is attributed to a high number density of nano-scaled coherent Al3(Sc,Zr) dispersoids which resist recrystallization, and produce a fine subgrain structure. The character of the subgrain structure is critical to prevent the occurrence of continuous intergranular Al3Mg2 precipitates during sensitization.
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•Minor additions of Sc and Zr significantly declined the IGC susceptibility for high-temperature annealed AA5182 alloy sheet.•Coherent Al3(Sc,Zr) dispersoids effectively inhibited the recrystallization of AA5182 alloy sheet during annealing.•The intergranular Al3Mg2 phase precipitated preferentially along high angle grain boundaries.•The subgrain structure can prevent the formation of continuous intergranular Al3Mg2 phase. |
| doi_str_mv | 10.1016/j.corsci.2022.110181 |
| format | Article |
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[Display omitted]
•Minor additions of Sc and Zr significantly declined the IGC susceptibility for high-temperature annealed AA5182 alloy sheet.•Coherent Al3(Sc,Zr) dispersoids effectively inhibited the recrystallization of AA5182 alloy sheet during annealing.•The intergranular Al3Mg2 phase precipitated preferentially along high angle grain boundaries.•The subgrain structure can prevent the formation of continuous intergranular Al3Mg2 phase.</description><identifier>ISSN: 0010-938X</identifier><identifier>EISSN: 1879-0496</identifier><identifier>DOI: 10.1016/j.corsci.2022.110181</identifier><language>eng</language><publisher>Amsterdam: Elsevier Ltd</publisher><subject>Al3(Sc,Zr) ; Alloys ; Aluminum ; Aluminum base alloys ; Corrosion effects ; Dispersions ; High temperature ; Intergranular corrosion ; Metal sheets ; Microstructure ; Precipitates ; Recrystallization ; Scandium ; TEM ; Zirconium</subject><ispartof>Corrosion science, 2022-05, Vol.199, p.110181, Article 110181</ispartof><rights>2022 Elsevier Ltd</rights><rights>Copyright Elsevier BV May 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-71bd54e4796c89a90330514e91a76038030d74aff06296c05ebfa574ed9618563</citedby><cites>FETCH-LOGICAL-c334t-71bd54e4796c89a90330514e91a76038030d74aff06296c05ebfa574ed9618563</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.2022.110181$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Qiu, Youcai</creatorcontrib><creatorcontrib>Yang, Xiaofang</creatorcontrib><creatorcontrib>Li, Jingxiao</creatorcontrib><creatorcontrib>Xiang, Shihua</creatorcontrib><creatorcontrib>Shi, Jie</creatorcontrib><creatorcontrib>Xu, Junyao</creatorcontrib><creatorcontrib>Sanders, Robert E.</creatorcontrib><title>The influence of Sc and Zr additions on microstructure and corrosion behavior of AA5182 alloy sheet</title><title>Corrosion science</title><description>Minor additions of Sc and Zr to a 5182 base alloy were used to study the effects of microstructure on the susceptibility to intergranular corrosion (IGC) of 5xxx sheet alloys. The results showed that minor Sc and Zr additions significantly decrease the IGC susceptibility as measured by the depth of IGC for the high-temperature annealed sheet. The improvement in IGC resistance is attributed to a high number density of nano-scaled coherent Al3(Sc,Zr) dispersoids which resist recrystallization, and produce a fine subgrain structure. The character of the subgrain structure is critical to prevent the occurrence of continuous intergranular Al3Mg2 precipitates during sensitization.
[Display omitted]
•Minor additions of Sc and Zr significantly declined the IGC susceptibility for high-temperature annealed AA5182 alloy sheet.•Coherent Al3(Sc,Zr) dispersoids effectively inhibited the recrystallization of AA5182 alloy sheet during annealing.•The intergranular Al3Mg2 phase precipitated preferentially along high angle grain boundaries.•The subgrain structure can prevent the formation of continuous intergranular Al3Mg2 phase.</description><subject>Al3(Sc,Zr)</subject><subject>Alloys</subject><subject>Aluminum</subject><subject>Aluminum base alloys</subject><subject>Corrosion effects</subject><subject>Dispersions</subject><subject>High temperature</subject><subject>Intergranular corrosion</subject><subject>Metal sheets</subject><subject>Microstructure</subject><subject>Precipitates</subject><subject>Recrystallization</subject><subject>Scandium</subject><subject>TEM</subject><subject>Zirconium</subject><issn>0010-938X</issn><issn>1879-0496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LAzEQhoMoWKv_wEPA89bJJpvdXIRS_IKCByuIl5BmZ2lKu6nJbqH_3qzr2dPAy_POMA8htwxmDJi8386sD9G6WQ55PmMpq9gZmbCqVBkIJc_JBIBBpnj1eUmuYtwCQJ6SCbGrDVLXNrseW4vUN_TdUtPW9CtQU9euc76N1Ld072zwsQu97fqAv0g6mqIE0DVuzNH5MPTn84JVOTW7nT_RuEHsrslFY3YRb_7mlHw8Pa4WL9ny7fl1MV9mlnPRZSVb14VAUSppK2UUcA4FE6iYKSXwCjjUpTBNAzJPCBS4bkxRCqyVZFUh-ZTcjXsPwX_3GDu99X1o00mdy0JwxaSoEiVGavgnBmz0Ibi9CSfNQA869VaPOvWgU486U-1hrGH64Ogw6EQMzmoX0Ha69u7_BT-jQn4h</recordid><startdate>20220501</startdate><enddate>20220501</enddate><creator>Qiu, Youcai</creator><creator>Yang, Xiaofang</creator><creator>Li, Jingxiao</creator><creator>Xiang, Shihua</creator><creator>Shi, Jie</creator><creator>Xu, Junyao</creator><creator>Sanders, Robert E.</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>20220501</creationdate><title>The influence of Sc and Zr additions on microstructure and corrosion behavior of AA5182 alloy sheet</title><author>Qiu, Youcai ; Yang, Xiaofang ; Li, Jingxiao ; Xiang, Shihua ; Shi, Jie ; Xu, Junyao ; Sanders, Robert E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c334t-71bd54e4796c89a90330514e91a76038030d74aff06296c05ebfa574ed9618563</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Al3(Sc,Zr)</topic><topic>Alloys</topic><topic>Aluminum</topic><topic>Aluminum base alloys</topic><topic>Corrosion effects</topic><topic>Dispersions</topic><topic>High temperature</topic><topic>Intergranular corrosion</topic><topic>Metal sheets</topic><topic>Microstructure</topic><topic>Precipitates</topic><topic>Recrystallization</topic><topic>Scandium</topic><topic>TEM</topic><topic>Zirconium</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Qiu, Youcai</creatorcontrib><creatorcontrib>Yang, Xiaofang</creatorcontrib><creatorcontrib>Li, Jingxiao</creatorcontrib><creatorcontrib>Xiang, Shihua</creatorcontrib><creatorcontrib>Shi, Jie</creatorcontrib><creatorcontrib>Xu, Junyao</creatorcontrib><creatorcontrib>Sanders, Robert E.</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>Qiu, Youcai</au><au>Yang, Xiaofang</au><au>Li, Jingxiao</au><au>Xiang, Shihua</au><au>Shi, Jie</au><au>Xu, Junyao</au><au>Sanders, Robert E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The influence of Sc and Zr additions on microstructure and corrosion behavior of AA5182 alloy sheet</atitle><jtitle>Corrosion science</jtitle><date>2022-05-01</date><risdate>2022</risdate><volume>199</volume><spage>110181</spage><pages>110181-</pages><artnum>110181</artnum><issn>0010-938X</issn><eissn>1879-0496</eissn><abstract>Minor additions of Sc and Zr to a 5182 base alloy were used to study the effects of microstructure on the susceptibility to intergranular corrosion (IGC) of 5xxx sheet alloys. The results showed that minor Sc and Zr additions significantly decrease the IGC susceptibility as measured by the depth of IGC for the high-temperature annealed sheet. The improvement in IGC resistance is attributed to a high number density of nano-scaled coherent Al3(Sc,Zr) dispersoids which resist recrystallization, and produce a fine subgrain structure. The character of the subgrain structure is critical to prevent the occurrence of continuous intergranular Al3Mg2 precipitates during sensitization.
[Display omitted]
•Minor additions of Sc and Zr significantly declined the IGC susceptibility for high-temperature annealed AA5182 alloy sheet.•Coherent Al3(Sc,Zr) dispersoids effectively inhibited the recrystallization of AA5182 alloy sheet during annealing.•The intergranular Al3Mg2 phase precipitated preferentially along high angle grain boundaries.•The subgrain structure can prevent the formation of continuous intergranular Al3Mg2 phase.</abstract><cop>Amsterdam</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.corsci.2022.110181</doi></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Al3(Sc,Zr) Alloys Aluminum Aluminum base alloys Corrosion effects Dispersions High temperature Intergranular corrosion Metal sheets Microstructure Precipitates Recrystallization Scandium TEM Zirconium |
| title | The influence of Sc and Zr additions on microstructure and corrosion behavior of AA5182 alloy sheet |
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