Serrated yielding behavior after cold and hot rolling of a high Mg content Al–Mg alloy
Deformation of Al–Mg alloys may be associated with dynamic strain aging which results to serrated yielding of these materials. In-solute Mg atoms and mobile dislocations are the main players of this phenomenon; So, they should be controlled during production of Al–Mg alloys. In this research, hot an...
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Veröffentlicht in: | Journal of alloys and compounds 2019-11, Vol.811, p.151997, Article 151997 |
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container_title | Journal of alloys and compounds |
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description | Deformation of Al–Mg alloys may be associated with dynamic strain aging which results to serrated yielding of these materials. In-solute Mg atoms and mobile dislocations are the main players of this phenomenon; So, they should be controlled during production of Al–Mg alloys. In this research, hot and cold rolling processes with different rolling reductions are performed on Al–6Mg alloy, and then subjected to tensile test due to investigate the severity of serration. Results show that serration is more severe in the annealed cold rolled Al–Mg alloys than that in hot rolled ones due to more in-solute Mg atoms for the cold rolled samples. Increasing in rolling reduction causes serrated yielding to be intensified for both hot and cold rolled alloys by affecting the dislocations and in-solute Mg atoms. For hot rolled samples, serrated yielding is delayed to start in comparison with cold rolled ones. This delay increases the attractiveness of using hot rolling process to produce Al–Mg sheets for the applications need to form the produced sheets.
•Hot rolling of Al–6Mg causes the onset of serration to be delayed, and the intensity of serration to be reduced.•High intensity of serration is occurred after annealing of cold rolled Al–Mg alloys.•Mobile dislocation density for the hot rolled samples is lower than that for annealed cold rolled ones. |
doi_str_mv | 10.1016/j.jallcom.2019.151997 |
format | Article |
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•Hot rolling of Al–6Mg causes the onset of serration to be delayed, and the intensity of serration to be reduced.•High intensity of serration is occurred after annealing of cold rolled Al–Mg alloys.•Mobile dislocation density for the hot rolled samples is lower than that for annealed cold rolled ones.</description><identifier>ISSN: 0925-8388</identifier><identifier>EISSN: 1873-4669</identifier><identifier>DOI: 10.1016/j.jallcom.2019.151997</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Al-Mg ; Alloys ; Aluminum base alloys ; Cold ; Cold rolling ; Cold starts ; Dislocation ; Dislocation mobility ; Dynamic strain aging ; Hot rolling ; Precipitation hardening ; Serrated yielding ; Serration ; Sheets ; Tensile tests</subject><ispartof>Journal of alloys and compounds, 2019-11, Vol.811, p.151997, Article 151997</ispartof><rights>2019</rights><rights>Copyright Elsevier BV Nov 30, 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-b5edc158de6f628d4bef5ef6b0368cda81fc371aa69be5e913871a81e3f6580a3</citedby><cites>FETCH-LOGICAL-c337t-b5edc158de6f628d4bef5ef6b0368cda81fc371aa69be5e913871a81e3f6580a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jallcom.2019.151997$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27929,27930,46000</link.rule.ids></links><search><creatorcontrib>Mostafaei, Mohammad Ali</creatorcontrib><title>Serrated yielding behavior after cold and hot rolling of a high Mg content Al–Mg alloy</title><title>Journal of alloys and compounds</title><description>Deformation of Al–Mg alloys may be associated with dynamic strain aging which results to serrated yielding of these materials. In-solute Mg atoms and mobile dislocations are the main players of this phenomenon; So, they should be controlled during production of Al–Mg alloys. In this research, hot and cold rolling processes with different rolling reductions are performed on Al–6Mg alloy, and then subjected to tensile test due to investigate the severity of serration. Results show that serration is more severe in the annealed cold rolled Al–Mg alloys than that in hot rolled ones due to more in-solute Mg atoms for the cold rolled samples. Increasing in rolling reduction causes serrated yielding to be intensified for both hot and cold rolled alloys by affecting the dislocations and in-solute Mg atoms. For hot rolled samples, serrated yielding is delayed to start in comparison with cold rolled ones. This delay increases the attractiveness of using hot rolling process to produce Al–Mg sheets for the applications need to form the produced sheets.
•Hot rolling of Al–6Mg causes the onset of serration to be delayed, and the intensity of serration to be reduced.•High intensity of serration is occurred after annealing of cold rolled Al–Mg alloys.•Mobile dislocation density for the hot rolled samples is lower than that for annealed cold rolled ones.</description><subject>Al-Mg</subject><subject>Alloys</subject><subject>Aluminum base alloys</subject><subject>Cold</subject><subject>Cold rolling</subject><subject>Cold starts</subject><subject>Dislocation</subject><subject>Dislocation mobility</subject><subject>Dynamic strain aging</subject><subject>Hot rolling</subject><subject>Precipitation hardening</subject><subject>Serrated yielding</subject><subject>Serration</subject><subject>Sheets</subject><subject>Tensile tests</subject><issn>0925-8388</issn><issn>1873-4669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqFkN9KwzAUxoMoOKePIAS8bk2aNU2vZAz_wcQLFbwLaXKypnTNTLvB7nwH39AnMaO79-rwwe_7zjkfQteUpJRQftukjWpb7ddpRmiZ0pyWZXGCJlQULJlxXp6iCSmzPBFMiHN00fcNIZFkdII-3yAENYDBewetcd0KV1CrnfMBKztAwNq3BqvO4NoPOPi2PTDeYoVrt6rxyyoS3QDdgOft7_dP1PEYv79EZ1a1PVwd5xR9PNy_L56S5evj82K-TDRjxZBUORhNc2GAW54JM6vA5mB5RRgX2ihBrWYFVYqXFeRQUiaiEhSY5bkgik3RzZi7Cf5rC_0gG78NXVwpM0bErBCc0kjlI6WD7_sAVm6CW6uwl5TIQ4mykccS5aFEOZYYfXejD-ILOwdB9tpBp8G4AHqQxrt_Ev4A7TV-bw</recordid><startdate>20191130</startdate><enddate>20191130</enddate><creator>Mostafaei, Mohammad Ali</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20191130</creationdate><title>Serrated yielding behavior after cold and hot rolling of a high Mg content Al–Mg alloy</title><author>Mostafaei, Mohammad Ali</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-b5edc158de6f628d4bef5ef6b0368cda81fc371aa69be5e913871a81e3f6580a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Al-Mg</topic><topic>Alloys</topic><topic>Aluminum base alloys</topic><topic>Cold</topic><topic>Cold rolling</topic><topic>Cold starts</topic><topic>Dislocation</topic><topic>Dislocation mobility</topic><topic>Dynamic strain aging</topic><topic>Hot rolling</topic><topic>Precipitation hardening</topic><topic>Serrated yielding</topic><topic>Serration</topic><topic>Sheets</topic><topic>Tensile tests</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mostafaei, Mohammad Ali</creatorcontrib><collection>CrossRef</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>Mostafaei, Mohammad Ali</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Serrated yielding behavior after cold and hot rolling of a high Mg content Al–Mg alloy</atitle><jtitle>Journal of alloys and compounds</jtitle><date>2019-11-30</date><risdate>2019</risdate><volume>811</volume><spage>151997</spage><pages>151997-</pages><artnum>151997</artnum><issn>0925-8388</issn><eissn>1873-4669</eissn><abstract>Deformation of Al–Mg alloys may be associated with dynamic strain aging which results to serrated yielding of these materials. In-solute Mg atoms and mobile dislocations are the main players of this phenomenon; So, they should be controlled during production of Al–Mg alloys. In this research, hot and cold rolling processes with different rolling reductions are performed on Al–6Mg alloy, and then subjected to tensile test due to investigate the severity of serration. Results show that serration is more severe in the annealed cold rolled Al–Mg alloys than that in hot rolled ones due to more in-solute Mg atoms for the cold rolled samples. Increasing in rolling reduction causes serrated yielding to be intensified for both hot and cold rolled alloys by affecting the dislocations and in-solute Mg atoms. For hot rolled samples, serrated yielding is delayed to start in comparison with cold rolled ones. This delay increases the attractiveness of using hot rolling process to produce Al–Mg sheets for the applications need to form the produced sheets.
•Hot rolling of Al–6Mg causes the onset of serration to be delayed, and the intensity of serration to be reduced.•High intensity of serration is occurred after annealing of cold rolled Al–Mg alloys.•Mobile dislocation density for the hot rolled samples is lower than that for annealed cold rolled ones.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jallcom.2019.151997</doi></addata></record> |
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subjects | Al-Mg Alloys Aluminum base alloys Cold Cold rolling Cold starts Dislocation Dislocation mobility Dynamic strain aging Hot rolling Precipitation hardening Serrated yielding Serration Sheets Tensile tests |
title | Serrated yielding behavior after cold and hot rolling of a high Mg content Al–Mg alloy |
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