Breaks in Hall-Petch Relationship in Magnesium
Magnesium and its alloys display a non-usual relationship between flow stress and grain size at room temperature. Breaks in the Hall-Petch relationship have been reported in the literature. Inverse Hall-Petch behavior in which flow stress reduces with grain size decreasing has also been reported in...
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| Veröffentlicht in: | Solid state phenomena 2023-12, Vol.353, p.121-127 |
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| container_title | Solid state phenomena |
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| creator | Figueiredo, Roberto B. Carvalho, Amanda P. |
| description | Magnesium and its alloys display a non-usual relationship between flow stress and grain size at room temperature. Breaks in the Hall-Petch relationship have been reported in the literature. Inverse Hall-Petch behavior in which flow stress reduces with grain size decreasing has also been reported in pure magnesium and magnesium alloys with ultrafine and nanocrystalline structures. The present overview discusses these effects in terms of controlling deformation mechanisms. The distinct strength observed in pure magnesium and magnesium alloys with ultrafine grained structure is also discussed. It is shown that experimental data for fine and ultrafine grained magnesium alloys agree with a model suggested recently based on the mechanism of grain boundary sliding. It is also exhibited that the stability of the grain structure might control the strength of ultrafine grained samples. |
| doi_str_mv | 10.4028/p-8QxhoF |
| format | Article |
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Breaks in the Hall-Petch relationship have been reported in the literature. Inverse Hall-Petch behavior in which flow stress reduces with grain size decreasing has also been reported in pure magnesium and magnesium alloys with ultrafine and nanocrystalline structures. The present overview discusses these effects in terms of controlling deformation mechanisms. The distinct strength observed in pure magnesium and magnesium alloys with ultrafine grained structure is also discussed. It is shown that experimental data for fine and ultrafine grained magnesium alloys agree with a model suggested recently based on the mechanism of grain boundary sliding. 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Breaks in the Hall-Petch relationship have been reported in the literature. Inverse Hall-Petch behavior in which flow stress reduces with grain size decreasing has also been reported in pure magnesium and magnesium alloys with ultrafine and nanocrystalline structures. The present overview discusses these effects in terms of controlling deformation mechanisms. The distinct strength observed in pure magnesium and magnesium alloys with ultrafine grained structure is also discussed. It is shown that experimental data for fine and ultrafine grained magnesium alloys agree with a model suggested recently based on the mechanism of grain boundary sliding. It is also exhibited that the stability of the grain structure might control the strength of ultrafine grained samples.</description><subject>Control stability</subject><subject>Deformation effects</subject><subject>Deformation mechanisms</subject><subject>Grain boundary sliding</subject><subject>Grain size</subject><subject>Grain structure</subject><subject>Magnesium base alloys</subject><subject>Room temperature</subject><subject>Ultrafines</subject><subject>Yield strength</subject><issn>1012-0394</issn><issn>1662-9779</issn><issn>1662-9779</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNpl0F1LwzAUBuAgCs4p-BMK3oiQma-myaWO1QkTP9h9SNNT29m1NWlB_70dFbzw6hw4D--BF6FLShaCMHXbYfX6VbbpEZpRKRnWSaKPx51QhgnX4hSdhbAjhFNF1Qwt7j3YjxBVTbS2dY1foHdl9Aa17au2CWXVHU5P9r2BUA37c3RS2DrAxe-co2262i7XePP88Li822CnZYozCyq2LskZE0pmPCFUKSFjcNy6wikmSJ4DFTGVXBDOlMiEZNbxjFMHLOZzdDXFdr79HCD0ZtcOvhk_Gk401SLWWo_qelLOtyF4KEznq73134YScyjDdGYqY6Q3E-29bUIPrvxL_Id_AEXqX1g</recordid><startdate>20231205</startdate><enddate>20231205</enddate><creator>Figueiredo, Roberto B.</creator><creator>Carvalho, Amanda P.</creator><general>Trans Tech Publications Ltd</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20231205</creationdate><title>Breaks in Hall-Petch Relationship in Magnesium</title><author>Figueiredo, Roberto B. ; Carvalho, Amanda P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c96F-bae85ac7d22486b370188465ec3acfc8240dde145163403284b462ac3b31ce253</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Control stability</topic><topic>Deformation effects</topic><topic>Deformation mechanisms</topic><topic>Grain boundary sliding</topic><topic>Grain size</topic><topic>Grain structure</topic><topic>Magnesium base alloys</topic><topic>Room temperature</topic><topic>Ultrafines</topic><topic>Yield strength</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Figueiredo, Roberto B.</creatorcontrib><creatorcontrib>Carvalho, Amanda P.</creatorcontrib><collection>CrossRef</collection><jtitle>Solid state phenomena</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Figueiredo, Roberto B.</au><au>Carvalho, Amanda P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Breaks in Hall-Petch Relationship in Magnesium</atitle><jtitle>Solid state phenomena</jtitle><date>2023-12-05</date><risdate>2023</risdate><volume>353</volume><spage>121</spage><epage>127</epage><pages>121-127</pages><issn>1012-0394</issn><issn>1662-9779</issn><eissn>1662-9779</eissn><abstract>Magnesium and its alloys display a non-usual relationship between flow stress and grain size at room temperature. Breaks in the Hall-Petch relationship have been reported in the literature. Inverse Hall-Petch behavior in which flow stress reduces with grain size decreasing has also been reported in pure magnesium and magnesium alloys with ultrafine and nanocrystalline structures. The present overview discusses these effects in terms of controlling deformation mechanisms. The distinct strength observed in pure magnesium and magnesium alloys with ultrafine grained structure is also discussed. It is shown that experimental data for fine and ultrafine grained magnesium alloys agree with a model suggested recently based on the mechanism of grain boundary sliding. It is also exhibited that the stability of the grain structure might control the strength of ultrafine grained samples.</abstract><cop>Zurich</cop><pub>Trans Tech Publications Ltd</pub><doi>10.4028/p-8QxhoF</doi><tpages>7</tpages></addata></record> |
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| ispartof | Solid state phenomena, 2023-12, Vol.353, p.121-127 |
| issn | 1012-0394 1662-9779 1662-9779 |
| language | eng |
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| source | Scientific.net Journals |
| subjects | Control stability Deformation effects Deformation mechanisms Grain boundary sliding Grain size Grain structure Magnesium base alloys Room temperature Ultrafines Yield strength |
| title | Breaks in Hall-Petch Relationship in Magnesium |
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