Effect of N on Microstructure and Tensile Behavior of TWIP Steel
The present study focused on the design and testing of new 3rd generation TWIP steels to find reduced Mn content alternatives to the existing high Mn FeMnC and FeMnAlC alloy systems. In order to investigate the effect of nitrogen addition, 12Mn0.6C-N was examined and 18Mn0.6C-N steel was used as a r...
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| Veröffentlicht in: | Materials science forum 2010-01, Vol.654-656, p.262-265 |
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| creator | Kim, Jin Kyung Kim, Sung Kyu Chin, Kwang Geun De Cooman, Bruno C. Lee, Sang Won |
| description | The present study focused on the design and testing of new 3rd generation TWIP steels to find reduced Mn content alternatives to the existing high Mn FeMnC and FeMnAlC alloy systems. In order to investigate the effect of nitrogen addition, 12Mn0.6C-N was examined and 18Mn0.6C-N steel was used as a reference. Effects of nitrogen and manganese on the microstructure and mechanical properties were investigated by X-ray diffraction, optical microscopy, scanning electron microscopy and tensile testing. The deformation microstructures of 12Mn0.6C-N were mixtures of twinned austenite and 5~10% ε-martensite. Only deformation twinning was observed in 18Mn0.6C-N during the deformation due to its higher stacking fault energy. 18Mn0.6C-N steel exhibited higher strength and elongation than 12Mn0.6C-N steel. The effect of the strain rate on the tensile behavior of both materials was also examined. While 18Mn0.6C-N showed clear negative strain rate sensitivity, 12Mn0.6C-N did not show a clear relationship between flow stress and strain rate. The effect of annealing temperature on the tensile behavior and microstructure was also examined. |
| doi_str_mv | 10.4028/www.scientific.net/MSF.654-656.262 |
| format | Article |
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In order to investigate the effect of nitrogen addition, 12Mn0.6C-N was examined and 18Mn0.6C-N steel was used as a reference. Effects of nitrogen and manganese on the microstructure and mechanical properties were investigated by X-ray diffraction, optical microscopy, scanning electron microscopy and tensile testing. The deformation microstructures of 12Mn0.6C-N were mixtures of twinned austenite and 5~10% ε-martensite. Only deformation twinning was observed in 18Mn0.6C-N during the deformation due to its higher stacking fault energy. 18Mn0.6C-N steel exhibited higher strength and elongation than 12Mn0.6C-N steel. The effect of the strain rate on the tensile behavior of both materials was also examined. While 18Mn0.6C-N showed clear negative strain rate sensitivity, 12Mn0.6C-N did not show a clear relationship between flow stress and strain rate. The effect of annealing temperature on the tensile behavior and microstructure was also examined.</description><identifier>ISSN: 0255-5476</identifier><identifier>ISSN: 1662-9752</identifier><identifier>EISSN: 1662-9752</identifier><identifier>DOI: 10.4028/www.scientific.net/MSF.654-656.262</identifier><language>eng</language><publisher>Trans Tech Publications Ltd</publisher><subject>Alloy systems ; Annealing ; Austenite ; Deformation ; Design engineering ; Diffraction ; Elongation ; Flow stress ; Manganese ; Mechanical properties ; Microstructure ; Optical microscopy ; Scanning electron microscopy ; Stacking fault energy ; Steels ; Strain rate ; Strain rate sensitivity ; Strength ; Twinning ; X-rays ; Yield strength</subject><ispartof>Materials science forum, 2010-01, Vol.654-656, p.262-265</ispartof><rights>2010 Trans Tech Publications Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c372t-38cf8f10bafd86f3a77f39b5de0c3aa6e48e6886a95e7e9fa93587d0442a5e343</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttps://www.scientific.net/Image/TitleCover/962?width=600</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Kim, Jin Kyung</creatorcontrib><creatorcontrib>Kim, Sung Kyu</creatorcontrib><creatorcontrib>Chin, Kwang Geun</creatorcontrib><creatorcontrib>De Cooman, Bruno C.</creatorcontrib><creatorcontrib>Lee, Sang Won</creatorcontrib><title>Effect of N on Microstructure and Tensile Behavior of TWIP Steel</title><title>Materials science forum</title><description>The present study focused on the design and testing of new 3rd generation TWIP steels to find reduced Mn content alternatives to the existing high Mn FeMnC and FeMnAlC alloy systems. In order to investigate the effect of nitrogen addition, 12Mn0.6C-N was examined and 18Mn0.6C-N steel was used as a reference. Effects of nitrogen and manganese on the microstructure and mechanical properties were investigated by X-ray diffraction, optical microscopy, scanning electron microscopy and tensile testing. The deformation microstructures of 12Mn0.6C-N were mixtures of twinned austenite and 5~10% ε-martensite. Only deformation twinning was observed in 18Mn0.6C-N during the deformation due to its higher stacking fault energy. 18Mn0.6C-N steel exhibited higher strength and elongation than 12Mn0.6C-N steel. The effect of the strain rate on the tensile behavior of both materials was also examined. While 18Mn0.6C-N showed clear negative strain rate sensitivity, 12Mn0.6C-N did not show a clear relationship between flow stress and strain rate. The effect of annealing temperature on the tensile behavior and microstructure was also examined.</description><subject>Alloy systems</subject><subject>Annealing</subject><subject>Austenite</subject><subject>Deformation</subject><subject>Design engineering</subject><subject>Diffraction</subject><subject>Elongation</subject><subject>Flow stress</subject><subject>Manganese</subject><subject>Mechanical properties</subject><subject>Microstructure</subject><subject>Optical microscopy</subject><subject>Scanning electron microscopy</subject><subject>Stacking fault energy</subject><subject>Steels</subject><subject>Strain rate</subject><subject>Strain rate sensitivity</subject><subject>Strength</subject><subject>Twinning</subject><subject>X-rays</subject><subject>Yield strength</subject><issn>0255-5476</issn><issn>1662-9752</issn><issn>1662-9752</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNqVkF9LwzAUR4MoOKffoW-C0C5Nmj99081NB5sKm_gYsuyGdXTtTFKH396MCT77cLkvhwO_g9BdjrMCEzk4HA6ZNxU0obKVyRoIg_liknFWpJzxjHByhno55yQtBSPnqIcJYykrBL9EV95vMaa5zHkP3Y-tBROS1iYvSdsk88q41gfXmdA5SHSzTpbQ-KqGZAgb_VW17sguP6ZvySIA1Nfowuraw83v76P3yXg5ek5nr0_T0cMsNVSQkFJprLQ5Xmm7ltxSLYSl5YqtARuqNYdCApeS65KBgNLqkjIp1rgoiGZAC9pHtyfv3rWfHfigdpU3UNe6gbbzSkhBeC4pieTwRB6XeAdW7V210-5b5Vgd66lYT_3VU7GeivVUrBePq1gvSh5PkuB04wOYjdq2nWvixP9ofgBJ7IJe</recordid><startdate>20100101</startdate><enddate>20100101</enddate><creator>Kim, Jin Kyung</creator><creator>Kim, Sung Kyu</creator><creator>Chin, Kwang Geun</creator><creator>De Cooman, Bruno C.</creator><creator>Lee, Sang Won</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>20100101</creationdate><title>Effect of N on Microstructure and Tensile Behavior of TWIP Steel</title><author>Kim, Jin Kyung ; Kim, Sung Kyu ; Chin, Kwang Geun ; De Cooman, Bruno C. ; Lee, Sang Won</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c372t-38cf8f10bafd86f3a77f39b5de0c3aa6e48e6886a95e7e9fa93587d0442a5e343</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Alloy systems</topic><topic>Annealing</topic><topic>Austenite</topic><topic>Deformation</topic><topic>Design engineering</topic><topic>Diffraction</topic><topic>Elongation</topic><topic>Flow stress</topic><topic>Manganese</topic><topic>Mechanical properties</topic><topic>Microstructure</topic><topic>Optical microscopy</topic><topic>Scanning electron microscopy</topic><topic>Stacking fault energy</topic><topic>Steels</topic><topic>Strain rate</topic><topic>Strain rate sensitivity</topic><topic>Strength</topic><topic>Twinning</topic><topic>X-rays</topic><topic>Yield strength</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kim, Jin Kyung</creatorcontrib><creatorcontrib>Kim, Sung Kyu</creatorcontrib><creatorcontrib>Chin, Kwang Geun</creatorcontrib><creatorcontrib>De Cooman, Bruno C.</creatorcontrib><creatorcontrib>Lee, Sang Won</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>Kim, Jin Kyung</au><au>Kim, Sung Kyu</au><au>Chin, Kwang Geun</au><au>De Cooman, Bruno C.</au><au>Lee, Sang Won</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of N on Microstructure and Tensile Behavior of TWIP Steel</atitle><jtitle>Materials science forum</jtitle><date>2010-01-01</date><risdate>2010</risdate><volume>654-656</volume><spage>262</spage><epage>265</epage><pages>262-265</pages><issn>0255-5476</issn><issn>1662-9752</issn><eissn>1662-9752</eissn><abstract>The present study focused on the design and testing of new 3rd generation TWIP steels to find reduced Mn content alternatives to the existing high Mn FeMnC and FeMnAlC alloy systems. In order to investigate the effect of nitrogen addition, 12Mn0.6C-N was examined and 18Mn0.6C-N steel was used as a reference. Effects of nitrogen and manganese on the microstructure and mechanical properties were investigated by X-ray diffraction, optical microscopy, scanning electron microscopy and tensile testing. The deformation microstructures of 12Mn0.6C-N were mixtures of twinned austenite and 5~10% ε-martensite. Only deformation twinning was observed in 18Mn0.6C-N during the deformation due to its higher stacking fault energy. 18Mn0.6C-N steel exhibited higher strength and elongation than 12Mn0.6C-N steel. The effect of the strain rate on the tensile behavior of both materials was also examined. While 18Mn0.6C-N showed clear negative strain rate sensitivity, 12Mn0.6C-N did not show a clear relationship between flow stress and strain rate. The effect of annealing temperature on the tensile behavior and microstructure was also examined.</abstract><pub>Trans Tech Publications Ltd</pub><doi>10.4028/www.scientific.net/MSF.654-656.262</doi><tpages>4</tpages></addata></record> |
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| subjects | Alloy systems Annealing Austenite Deformation Design engineering Diffraction Elongation Flow stress Manganese Mechanical properties Microstructure Optical microscopy Scanning electron microscopy Stacking fault energy Steels Strain rate Strain rate sensitivity Strength Twinning X-rays Yield strength |
| title | Effect of N on Microstructure and Tensile Behavior of TWIP Steel |
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