The Study on Welding HAZ Microstructure of SAF 2507 Duplex Stainless Steel by Simulation Tests
Thermal simulation by GLEEBLE3800 is adopted to obtain the simulated welding HAZ microstructures in SAF 2507 duplex stainless steel with the GLEEBLE3800 thermal simulation machine. The simulation peak temperatures are 800oC, 900oC, 950oC, 1000oC, 1050oC and 1100oC, The cooling velocities are t12/8=3...
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| Veröffentlicht in: | Materials science forum 2014-10, Vol.804, p.277-280 |
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| creator | Fan, Guang Wei Chang, Xu Liu, Jie Tao, Ren Long |
| description | Thermal simulation by GLEEBLE3800 is adopted to obtain the simulated welding HAZ microstructures in SAF 2507 duplex stainless steel with the GLEEBLE3800 thermal simulation machine. The simulation peak temperatures are 800oC, 900oC, 950oC, 1000oC, 1050oC and 1100oC, The cooling velocities are t12/8=3.6s, 7s, 20s and 40s (t12/8 is cooling time of 1200oC to 800oC which is used to describe the cooling rate). The results indicate that the peak temperatures have significant influence on the microstructures of austenite and ferrite. At 900oC, the content of σ phase precipitation reaches the maximum, which is distributed mainly in α or at α/γ junction. When the temperature is set above 1050oC, the σ phase disappears. A faster cooling rate passing through 800~1050oC is required to avoid brittle σ phase precipitation. |
| doi_str_mv | 10.4028/www.scientific.net/MSF.804.277 |
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The simulation peak temperatures are 800oC, 900oC, 950oC, 1000oC, 1050oC and 1100oC, The cooling velocities are t12/8=3.6s, 7s, 20s and 40s (t12/8 is cooling time of 1200oC to 800oC which is used to describe the cooling rate). The results indicate that the peak temperatures have significant influence on the microstructures of austenite and ferrite. At 900oC, the content of σ phase precipitation reaches the maximum, which is distributed mainly in α or at α/γ junction. When the temperature is set above 1050oC, the σ phase disappears. A faster cooling rate passing through 800~1050oC is required to avoid brittle σ phase precipitation.</description><identifier>ISSN: 0255-5476</identifier><identifier>ISSN: 1662-9752</identifier><identifier>EISSN: 1662-9752</identifier><identifier>DOI: 10.4028/www.scientific.net/MSF.804.277</identifier><language>eng</language><publisher>Trans Tech Publications Ltd</publisher><subject>Cooling rate ; Duplex stainless steels ; Heat affected zone ; Microstructure ; Precipitation ; Simulation ; Thermal simulation ; Welding</subject><ispartof>Materials science forum, 2014-10, Vol.804, p.277-280</ispartof><rights>2015 Trans Tech Publications Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2767-2910b26938b0887be0cf5bb65a16bbadbb4678149c814eefd440091152b5ff543</citedby><cites>FETCH-LOGICAL-c2767-2910b26938b0887be0cf5bb65a16bbadbb4678149c814eefd440091152b5ff543</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttps://www.scientific.net/Image/TitleCover/3457?width=600</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Fan, Guang Wei</creatorcontrib><creatorcontrib>Chang, Xu</creatorcontrib><creatorcontrib>Liu, Jie</creatorcontrib><creatorcontrib>Tao, Ren Long</creatorcontrib><title>The Study on Welding HAZ Microstructure of SAF 2507 Duplex Stainless Steel by Simulation Tests</title><title>Materials science forum</title><description>Thermal simulation by GLEEBLE3800 is adopted to obtain the simulated welding HAZ microstructures in SAF 2507 duplex stainless steel with the GLEEBLE3800 thermal simulation machine. The simulation peak temperatures are 800oC, 900oC, 950oC, 1000oC, 1050oC and 1100oC, The cooling velocities are t12/8=3.6s, 7s, 20s and 40s (t12/8 is cooling time of 1200oC to 800oC which is used to describe the cooling rate). The results indicate that the peak temperatures have significant influence on the microstructures of austenite and ferrite. At 900oC, the content of σ phase precipitation reaches the maximum, which is distributed mainly in α or at α/γ junction. When the temperature is set above 1050oC, the σ phase disappears. A faster cooling rate passing through 800~1050oC is required to avoid brittle σ phase precipitation.</description><subject>Cooling rate</subject><subject>Duplex stainless steels</subject><subject>Heat affected zone</subject><subject>Microstructure</subject><subject>Precipitation</subject><subject>Simulation</subject><subject>Thermal simulation</subject><subject>Welding</subject><issn>0255-5476</issn><issn>1662-9752</issn><issn>1662-9752</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNkE1LAzEQhoMoWD_-Q07iZbdJmo_di1iqtYLFQyuCB8MmndXIdrcmWWr_vZEKXr3MzOGdZ5gHoQtKck5YMdxut3mwDtroamfzFuJwvpjmBeE5U-oADaiULCuVYIdoQJgQmeBKHqOTED4IGdGCygF6Xb4DXsR-tcNdi5-hWbn2Dc_GL3jurO9C9L2NvQfc1XgxnmImiMI3_aaBr7RWubaBENIE0GCzwwu37psqusRaQojhDB3VVRPg_Lefoqfp7XIyyx4e7-4n44fMMiVVxkpKDJPlqDCkKJQBYmthjBQVlcZUK2O4VAXlpU0FoF5xTkhJqWBG1LXgo1N0uedufPfZp8t67YKFpqla6PqgqaJFyUnJRil6tY_-vBc81Hrj3bryO02J_hGrk1j9J1YnsTqJ1UmsTmIT4HoPiL5qQwT7rj-63rfpv_8ivgE5zolG</recordid><startdate>20141001</startdate><enddate>20141001</enddate><creator>Fan, Guang Wei</creator><creator>Chang, Xu</creator><creator>Liu, Jie</creator><creator>Tao, Ren Long</creator><general>Trans Tech Publications Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20141001</creationdate><title>The Study on Welding HAZ Microstructure of SAF 2507 Duplex Stainless Steel by Simulation Tests</title><author>Fan, Guang Wei ; Chang, Xu ; Liu, Jie ; Tao, Ren Long</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2767-2910b26938b0887be0cf5bb65a16bbadbb4678149c814eefd440091152b5ff543</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Cooling rate</topic><topic>Duplex stainless steels</topic><topic>Heat affected zone</topic><topic>Microstructure</topic><topic>Precipitation</topic><topic>Simulation</topic><topic>Thermal simulation</topic><topic>Welding</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fan, Guang Wei</creatorcontrib><creatorcontrib>Chang, Xu</creatorcontrib><creatorcontrib>Liu, Jie</creatorcontrib><creatorcontrib>Tao, Ren Long</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology 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>Fan, Guang Wei</au><au>Chang, Xu</au><au>Liu, Jie</au><au>Tao, Ren Long</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Study on Welding HAZ Microstructure of SAF 2507 Duplex Stainless Steel by Simulation Tests</atitle><jtitle>Materials science forum</jtitle><date>2014-10-01</date><risdate>2014</risdate><volume>804</volume><spage>277</spage><epage>280</epage><pages>277-280</pages><issn>0255-5476</issn><issn>1662-9752</issn><eissn>1662-9752</eissn><abstract>Thermal simulation by GLEEBLE3800 is adopted to obtain the simulated welding HAZ microstructures in SAF 2507 duplex stainless steel with the GLEEBLE3800 thermal simulation machine. The simulation peak temperatures are 800oC, 900oC, 950oC, 1000oC, 1050oC and 1100oC, The cooling velocities are t12/8=3.6s, 7s, 20s and 40s (t12/8 is cooling time of 1200oC to 800oC which is used to describe the cooling rate). The results indicate that the peak temperatures have significant influence on the microstructures of austenite and ferrite. At 900oC, the content of σ phase precipitation reaches the maximum, which is distributed mainly in α or at α/γ junction. When the temperature is set above 1050oC, the σ phase disappears. A faster cooling rate passing through 800~1050oC is required to avoid brittle σ phase precipitation.</abstract><pub>Trans Tech Publications Ltd</pub><doi>10.4028/www.scientific.net/MSF.804.277</doi><tpages>4</tpages></addata></record> |
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| subjects | Cooling rate Duplex stainless steels Heat affected zone Microstructure Precipitation Simulation Thermal simulation Welding |
| title | The Study on Welding HAZ Microstructure of SAF 2507 Duplex Stainless Steel by Simulation Tests |
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