Development of Semi-Solid Processes for Hot Extrusion of Magnesium Alloys
Technological barriers that relate to limited capability of magnesium extrusion technology still exist, especially for the higher alloyed grades. Part of this is associated with the unfavorable crystallographic structure of the magnesium, which is Hexagonal Close Packed (HCP). This work suggests an...
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| Veröffentlicht in: | Materials science forum 2005-07, Vol.488-489, p.605-610 |
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| creator | Rosen, G.I. Rosenson, H. Segal, G. Koren, Z. |
| description | Technological barriers that relate to limited capability of magnesium extrusion
technology still exist, especially for the higher alloyed grades. Part of this is associated with the unfavorable crystallographic structure of the magnesium, which is Hexagonal Close Packed (HCP). This work suggests an innovative and novel technology for reducing the production cycle from cast to finished product. A unique Semi-Solid casting system was designed and constructed in order to enable casting of large scale commercial billets having thixotropic properties. These have been
further hot extruded via conventional direct extrusion press. It is shown that all essential parameters have improved significantly. These include extrusion temperature reduction (up to 1500C), press pressure reduction, increase of extrusion rate (up to four times), and, enhancement of surface quality. In addition good mechanical properties and corrosion resistance were achieved. |
| doi_str_mv | 10.4028/www.scientific.net/MSF.488-489.605 |
| format | Article |
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technology still exist, especially for the higher alloyed grades. Part of this is associated with the unfavorable crystallographic structure of the magnesium, which is Hexagonal Close Packed (HCP). This work suggests an innovative and novel technology for reducing the production cycle from cast to finished product. A unique Semi-Solid casting system was designed and constructed in order to enable casting of large scale commercial billets having thixotropic properties. These have been
further hot extruded via conventional direct extrusion press. It is shown that all essential parameters have improved significantly. These include extrusion temperature reduction (up to 1500C), press pressure reduction, increase of extrusion rate (up to four times), and, enhancement of surface quality. In addition good mechanical properties and corrosion resistance were achieved.</description><identifier>ISSN: 0255-5476</identifier><identifier>ISSN: 1662-9752</identifier><identifier>EISSN: 1662-9752</identifier><identifier>DOI: 10.4028/www.scientific.net/MSF.488-489.605</identifier><language>eng</language><publisher>Trans Tech Publications Ltd</publisher><ispartof>Materials science forum, 2005-07, Vol.488-489, p.605-610</ispartof><rights>2005 Trans Tech Publications Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttps://www.scientific.net/Image/TitleCover/518?width=600</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids></links><search><creatorcontrib>Rosen, G.I.</creatorcontrib><creatorcontrib>Rosenson, H.</creatorcontrib><creatorcontrib>Segal, G.</creatorcontrib><creatorcontrib>Koren, Z.</creatorcontrib><title>Development of Semi-Solid Processes for Hot Extrusion of Magnesium Alloys</title><title>Materials science forum</title><description>Technological barriers that relate to limited capability of magnesium extrusion
technology still exist, especially for the higher alloyed grades. Part of this is associated with the unfavorable crystallographic structure of the magnesium, which is Hexagonal Close Packed (HCP). This work suggests an innovative and novel technology for reducing the production cycle from cast to finished product. A unique Semi-Solid casting system was designed and constructed in order to enable casting of large scale commercial billets having thixotropic properties. These have been
further hot extruded via conventional direct extrusion press. It is shown that all essential parameters have improved significantly. These include extrusion temperature reduction (up to 1500C), press pressure reduction, increase of extrusion rate (up to four times), and, enhancement of surface quality. In addition good mechanical properties and corrosion resistance were achieved.</description><issn>0255-5476</issn><issn>1662-9752</issn><issn>1662-9752</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqVkMtOwzAQAC0EEqXwDzlxQErqR-w4x9IHrdQKpMLZSpM1uEriYieU_j2uisSZw2ovo9HuIPRAcJJiKkeHwyHxpYG2M9qUSQvdaL2ZJ6mUcSrzRGB-gQZECBrnGaeXaIAp5zFPM3GNbrzfYcyIJGKAllP4gtrum6CKrI420Jh4Y2tTRS_OluA9-EhbFy1sF82-O9d7Y9sTuS7eW_Cmb6JxXdujv0VXuqg93P3uIXqbz14ni3j1_LScjFdxSZnoYik1sHAMYZgQXhJegSQZqTCWBIuCCMaynGe0oOkWV1pXAvIt4xnWOUm3krMhuj97985-9uA71RhfQl0XLdjeKyo5zTlOA_h4BktnvXeg1d6ZpnBHRbA6VVShovqrqEJFFSqqUDFMrkLFIJmeJZ0rWt9B-aF2tndt-PA_mh_BgoTA</recordid><startdate>20050715</startdate><enddate>20050715</enddate><creator>Rosen, G.I.</creator><creator>Rosenson, H.</creator><creator>Segal, G.</creator><creator>Koren, Z.</creator><general>Trans Tech Publications Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SE</scope><scope>7TB</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope></search><sort><creationdate>20050715</creationdate><title>Development of Semi-Solid Processes for Hot Extrusion of Magnesium Alloys</title><author>Rosen, G.I. ; Rosenson, H. ; Segal, G. ; Koren, Z.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c236t-88fe3255130115c15de8171d008106a163379572a24b0dffd6e9b3570f914b853</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rosen, G.I.</creatorcontrib><creatorcontrib>Rosenson, H.</creatorcontrib><creatorcontrib>Segal, G.</creatorcontrib><creatorcontrib>Koren, Z.</creatorcontrib><collection>CrossRef</collection><collection>Corrosion Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials science forum</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rosen, G.I.</au><au>Rosenson, H.</au><au>Segal, G.</au><au>Koren, Z.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Development of Semi-Solid Processes for Hot Extrusion of Magnesium Alloys</atitle><jtitle>Materials science forum</jtitle><date>2005-07-15</date><risdate>2005</risdate><volume>488-489</volume><spage>605</spage><epage>610</epage><pages>605-610</pages><issn>0255-5476</issn><issn>1662-9752</issn><eissn>1662-9752</eissn><abstract>Technological barriers that relate to limited capability of magnesium extrusion
technology still exist, especially for the higher alloyed grades. Part of this is associated with the unfavorable crystallographic structure of the magnesium, which is Hexagonal Close Packed (HCP). This work suggests an innovative and novel technology for reducing the production cycle from cast to finished product. A unique Semi-Solid casting system was designed and constructed in order to enable casting of large scale commercial billets having thixotropic properties. These have been
further hot extruded via conventional direct extrusion press. It is shown that all essential parameters have improved significantly. These include extrusion temperature reduction (up to 1500C), press pressure reduction, increase of extrusion rate (up to four times), and, enhancement of surface quality. In addition good mechanical properties and corrosion resistance were achieved.</abstract><pub>Trans Tech Publications Ltd</pub><doi>10.4028/www.scientific.net/MSF.488-489.605</doi><tpages>6</tpages></addata></record> |
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| title | Development of Semi-Solid Processes for Hot Extrusion of Magnesium Alloys |
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