Enhanced corrosion resistance of Mg alloy ZK60 after processing by integrated extrusion and equal channel angular pressing
It was demonstrated in this work that the corrosion rate of Mg alloy ZK60 can be reduced through the use of an integrated process of extrusion and equal channel angular pressing concomitant with increased strength. The improvement in corrosion resistance, as measured by electrochemical experiments a...
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| Veröffentlicht in: | Acta materialia 2011-09, Vol.59 (15), p.6176-6186 |
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| container_title | Acta materialia |
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| creator | Orlov, D. Ralston, K.D. Birbilis, N. Estrin, Y. |
| description | It was demonstrated in this work that the corrosion rate of Mg alloy ZK60 can be reduced through the use of an integrated process of extrusion and equal channel angular pressing concomitant with increased strength. The improvement in corrosion resistance, as measured by electrochemical experiments and immersion tests in NaCl electrolytes, was correlated with both grain refinement and the redistribution of Zn and Zr solutes within the microstructure. These microstructural changes impacted the relative anodic and cathodic reaction kinetics sustained by the alloy in a unique manner, whereby structural and chemical variations dictated the anodic reaction rates in the former and the cathodic rates in the latter. The observed decrease in the corrosion rate, combined with improved mechanical properties for ZK60, represents a scenario where two properties that are nominally inversely correlated can be improved simultaneously, offering an insight into how Mg can be unique in terms of its processing-property relationships. |
| doi_str_mv | 10.1016/j.actamat.2011.06.033 |
| format | Article |
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The improvement in corrosion resistance, as measured by electrochemical experiments and immersion tests in NaCl electrolytes, was correlated with both grain refinement and the redistribution of Zn and Zr solutes within the microstructure. These microstructural changes impacted the relative anodic and cathodic reaction kinetics sustained by the alloy in a unique manner, whereby structural and chemical variations dictated the anodic reaction rates in the former and the cathodic rates in the latter. The observed decrease in the corrosion rate, combined with improved mechanical properties for ZK60, represents a scenario where two properties that are nominally inversely correlated can be improved simultaneously, offering an insight into how Mg can be unique in terms of its processing-property relationships.</description><identifier>ISSN: 1359-6454</identifier><identifier>EISSN: 1873-2453</identifier><identifier>DOI: 10.1016/j.actamat.2011.06.033</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Anodic ; Applied sciences ; Correlation ; Corrosion ; Corrosion environments ; Corrosion rate ; Corrosion resistance ; Equal channel angular pressing ; Exact sciences and technology ; Extrusion rate ; Grain refinement ; Magnesium ; Magnesium base alloys ; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology ; Metals. Metallurgy ; Microstructure ; Severe plastic deformation</subject><ispartof>Acta materialia, 2011-09, Vol.59 (15), p.6176-6186</ispartof><rights>2011 Acta Materialia Inc.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c438t-e0c5f380934c208b21213f8e3fd24d5839ccf1d19ff899f42dbaf44f8d2f91e93</citedby><cites>FETCH-LOGICAL-c438t-e0c5f380934c208b21213f8e3fd24d5839ccf1d19ff899f42dbaf44f8d2f91e93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1359645411004472$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24420939$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Orlov, D.</creatorcontrib><creatorcontrib>Ralston, K.D.</creatorcontrib><creatorcontrib>Birbilis, N.</creatorcontrib><creatorcontrib>Estrin, Y.</creatorcontrib><title>Enhanced corrosion resistance of Mg alloy ZK60 after processing by integrated extrusion and equal channel angular pressing</title><title>Acta materialia</title><description>It was demonstrated in this work that the corrosion rate of Mg alloy ZK60 can be reduced through the use of an integrated process of extrusion and equal channel angular pressing concomitant with increased strength. The improvement in corrosion resistance, as measured by electrochemical experiments and immersion tests in NaCl electrolytes, was correlated with both grain refinement and the redistribution of Zn and Zr solutes within the microstructure. These microstructural changes impacted the relative anodic and cathodic reaction kinetics sustained by the alloy in a unique manner, whereby structural and chemical variations dictated the anodic reaction rates in the former and the cathodic rates in the latter. The observed decrease in the corrosion rate, combined with improved mechanical properties for ZK60, represents a scenario where two properties that are nominally inversely correlated can be improved simultaneously, offering an insight into how Mg can be unique in terms of its processing-property relationships.</description><subject>Anodic</subject><subject>Applied sciences</subject><subject>Correlation</subject><subject>Corrosion</subject><subject>Corrosion environments</subject><subject>Corrosion rate</subject><subject>Corrosion resistance</subject><subject>Equal channel angular pressing</subject><subject>Exact sciences and technology</subject><subject>Extrusion rate</subject><subject>Grain refinement</subject><subject>Magnesium</subject><subject>Magnesium base alloys</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metals. Metallurgy</subject><subject>Microstructure</subject><subject>Severe plastic deformation</subject><issn>1359-6454</issn><issn>1873-2453</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkDtPwzAUhSMEEqXwE5C8ILEk-JXUmRCqeIkiFlhYLNe5Lq7cpLUdRPn1OLRiZbJ9dc65x1-WnRNcEEyqq2WhdFQrFQuKCSlwVWDGDrIREROWU16yw3RnZZ1XvOTH2UkIS4wJnXA8yr5v2w_VamiQ7rzvgu1a5CHYEIcp6gx6XiDlXLdF708VRspE8GjtOw0h2HaB5ltk2wgLr2IKga_o-98Q1abXplcO6bSgBZcmi96pwbyznmZHRrkAZ_tznL3d3b5OH_LZy_3j9GaWa85EzAHr0jCBa8Y1xWJOCSXMCGCmobwpBau1NqQhtTGirg2nzVwZzo1oqKkJ1GycXe5yU-tNDyHKlQ0anFMtdH2QpJoQSgXmIknLnVQnFMGDkWtvV8pvJcFyYC2Xcs9aDqwlrmRinXwX-xUqaOWMT_Bs-DNTzmnqP1S53ukg_ffTgpdBWxjwWw86yqaz_2z6AXccmYA</recordid><startdate>20110901</startdate><enddate>20110901</enddate><creator>Orlov, D.</creator><creator>Ralston, K.D.</creator><creator>Birbilis, N.</creator><creator>Estrin, Y.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7SE</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20110901</creationdate><title>Enhanced corrosion resistance of Mg alloy ZK60 after processing by integrated extrusion and equal channel angular pressing</title><author>Orlov, D. ; Ralston, K.D. ; Birbilis, N. ; Estrin, Y.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c438t-e0c5f380934c208b21213f8e3fd24d5839ccf1d19ff899f42dbaf44f8d2f91e93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Anodic</topic><topic>Applied sciences</topic><topic>Correlation</topic><topic>Corrosion</topic><topic>Corrosion environments</topic><topic>Corrosion rate</topic><topic>Corrosion resistance</topic><topic>Equal channel angular pressing</topic><topic>Exact sciences and technology</topic><topic>Extrusion rate</topic><topic>Grain refinement</topic><topic>Magnesium</topic><topic>Magnesium base alloys</topic><topic>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</topic><topic>Metals. Metallurgy</topic><topic>Microstructure</topic><topic>Severe plastic deformation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Orlov, D.</creatorcontrib><creatorcontrib>Ralston, K.D.</creatorcontrib><creatorcontrib>Birbilis, N.</creatorcontrib><creatorcontrib>Estrin, Y.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Acta materialia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Orlov, D.</au><au>Ralston, K.D.</au><au>Birbilis, N.</au><au>Estrin, Y.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhanced corrosion resistance of Mg alloy ZK60 after processing by integrated extrusion and equal channel angular pressing</atitle><jtitle>Acta materialia</jtitle><date>2011-09-01</date><risdate>2011</risdate><volume>59</volume><issue>15</issue><spage>6176</spage><epage>6186</epage><pages>6176-6186</pages><issn>1359-6454</issn><eissn>1873-2453</eissn><abstract>It was demonstrated in this work that the corrosion rate of Mg alloy ZK60 can be reduced through the use of an integrated process of extrusion and equal channel angular pressing concomitant with increased strength. The improvement in corrosion resistance, as measured by electrochemical experiments and immersion tests in NaCl electrolytes, was correlated with both grain refinement and the redistribution of Zn and Zr solutes within the microstructure. These microstructural changes impacted the relative anodic and cathodic reaction kinetics sustained by the alloy in a unique manner, whereby structural and chemical variations dictated the anodic reaction rates in the former and the cathodic rates in the latter. The observed decrease in the corrosion rate, combined with improved mechanical properties for ZK60, represents a scenario where two properties that are nominally inversely correlated can be improved simultaneously, offering an insight into how Mg can be unique in terms of its processing-property relationships.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.actamat.2011.06.033</doi><tpages>11</tpages></addata></record> |
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| ispartof | Acta materialia, 2011-09, Vol.59 (15), p.6176-6186 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Anodic Applied sciences Correlation Corrosion Corrosion environments Corrosion rate Corrosion resistance Equal channel angular pressing Exact sciences and technology Extrusion rate Grain refinement Magnesium Magnesium base alloys Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Microstructure Severe plastic deformation |
| title | Enhanced corrosion resistance of Mg alloy ZK60 after processing by integrated extrusion and equal channel angular pressing |
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