Comparative study on the forming and reversion of strain-induced martensite in two duplex stainless steels: Developing a model for VSM analysis of powders or fine chips
•Deformation by hand filing induced the formation of strain-induced martensite in DSS.•The content of the martensite fraction was higher in DSS than in SDSS.•Two VSM data fit equations were developed, one feasible for DSS and another for SDSS.•Values obtained using fit equations and XRD reasonably a...
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| Veröffentlicht in: | Journal of magnetism and magnetic materials 2019-09, Vol.485, p.8-15 |
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| container_title | Journal of magnetism and magnetic materials |
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| creator | de Aguiar, D.J.M. Padilha, A.F. Plaut, R.L. da Silva, M.R. de Lima, N.B. |
| description | •Deformation by hand filing induced the formation of strain-induced martensite in DSS.•The content of the martensite fraction was higher in DSS than in SDSS.•Two VSM data fit equations were developed, one feasible for DSS and another for SDSS.•Values obtained using fit equations and XRD reasonably agreed with each other.
An original feature of this work is the proposal of two equations to fit the volume fraction of ferromagnetic (α + α′) phases that can be applied in the measurement of magnetic saturation of comminuted duplex and superduplex stainless steels (for example, powders or filed chips). Duplex stainless steels contain similar volume fractions of austenite (γ) and ferrite (α) in their microstructure. Two steels exemplify this class, namely the most widely used duplex UNS S31803 and superduplex UNS S32520 stainless steels. The phenomena of work hardening, formation, and reversion of strain-induced martensite (α′) in austenite were compared in both stainless steels. Samples were work-hardened and annealed under identical conditions, and their behavior was evaluated mainly through X-ray diffraction and magnetic measurements. Notably, the volume fraction of strain-induced α′ in duplex stainless steel was as high as 32%, which indicated that this steel had a greater tendency to form α′ than superduplex stainless steel, for which the corresponding value equaled 15%. Annealing at 650 °C for 2 h promoted the reversion of strain-induced α′ into γ, decreasing the volume fraction of the former phase from 32 to 2% (duplex) and from 15 to 6% (superduplex). |
| doi_str_mv | 10.1016/j.jmmm.2019.04.054 |
| format | Article |
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An original feature of this work is the proposal of two equations to fit the volume fraction of ferromagnetic (α + α′) phases that can be applied in the measurement of magnetic saturation of comminuted duplex and superduplex stainless steels (for example, powders or filed chips). Duplex stainless steels contain similar volume fractions of austenite (γ) and ferrite (α) in their microstructure. Two steels exemplify this class, namely the most widely used duplex UNS S31803 and superduplex UNS S32520 stainless steels. The phenomena of work hardening, formation, and reversion of strain-induced martensite (α′) in austenite were compared in both stainless steels. Samples were work-hardened and annealed under identical conditions, and their behavior was evaluated mainly through X-ray diffraction and magnetic measurements. Notably, the volume fraction of strain-induced α′ in duplex stainless steel was as high as 32%, which indicated that this steel had a greater tendency to form α′ than superduplex stainless steel, for which the corresponding value equaled 15%. Annealing at 650 °C for 2 h promoted the reversion of strain-induced α′ into γ, decreasing the volume fraction of the former phase from 32 to 2% (duplex) and from 15 to 6% (superduplex).</description><identifier>ISSN: 0304-8853</identifier><identifier>EISSN: 1873-4766</identifier><identifier>DOI: 10.1016/j.jmmm.2019.04.054</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Annealing ; Austenite ; Austenitic stainless steels ; Comparative studies ; Duplex stainless steels ; Ferromagnetism ; Fit equation ; Magnetic measurement ; Magnetic saturation ; Martensite ; Reversion ; Stainless steel ; Strain-induced martensite (α′) ; Work hardening ; X-ray diffraction</subject><ispartof>Journal of magnetism and magnetic materials, 2019-09, Vol.485, p.8-15</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright Elsevier BV Sep 1, 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c328t-24bde2d1236fa4bc4a2b4ad3e4263a2e32159648ad9ac070dc0314bd8abe4bbb3</citedby><cites>FETCH-LOGICAL-c328t-24bde2d1236fa4bc4a2b4ad3e4263a2e32159648ad9ac070dc0314bd8abe4bbb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jmmm.2019.04.054$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,45974</link.rule.ids></links><search><creatorcontrib>de Aguiar, D.J.M.</creatorcontrib><creatorcontrib>Padilha, A.F.</creatorcontrib><creatorcontrib>Plaut, R.L.</creatorcontrib><creatorcontrib>da Silva, M.R.</creatorcontrib><creatorcontrib>de Lima, N.B.</creatorcontrib><title>Comparative study on the forming and reversion of strain-induced martensite in two duplex stainless steels: Developing a model for VSM analysis of powders or fine chips</title><title>Journal of magnetism and magnetic materials</title><description>•Deformation by hand filing induced the formation of strain-induced martensite in DSS.•The content of the martensite fraction was higher in DSS than in SDSS.•Two VSM data fit equations were developed, one feasible for DSS and another for SDSS.•Values obtained using fit equations and XRD reasonably agreed with each other.
An original feature of this work is the proposal of two equations to fit the volume fraction of ferromagnetic (α + α′) phases that can be applied in the measurement of magnetic saturation of comminuted duplex and superduplex stainless steels (for example, powders or filed chips). Duplex stainless steels contain similar volume fractions of austenite (γ) and ferrite (α) in their microstructure. Two steels exemplify this class, namely the most widely used duplex UNS S31803 and superduplex UNS S32520 stainless steels. The phenomena of work hardening, formation, and reversion of strain-induced martensite (α′) in austenite were compared in both stainless steels. Samples were work-hardened and annealed under identical conditions, and their behavior was evaluated mainly through X-ray diffraction and magnetic measurements. Notably, the volume fraction of strain-induced α′ in duplex stainless steel was as high as 32%, which indicated that this steel had a greater tendency to form α′ than superduplex stainless steel, for which the corresponding value equaled 15%. Annealing at 650 °C for 2 h promoted the reversion of strain-induced α′ into γ, decreasing the volume fraction of the former phase from 32 to 2% (duplex) and from 15 to 6% (superduplex).</description><subject>Annealing</subject><subject>Austenite</subject><subject>Austenitic stainless steels</subject><subject>Comparative studies</subject><subject>Duplex stainless steels</subject><subject>Ferromagnetism</subject><subject>Fit equation</subject><subject>Magnetic measurement</subject><subject>Magnetic saturation</subject><subject>Martensite</subject><subject>Reversion</subject><subject>Stainless steel</subject><subject>Strain-induced martensite (α′)</subject><subject>Work hardening</subject><subject>X-ray diffraction</subject><issn>0304-8853</issn><issn>1873-4766</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9UU1v1DAQtSqQWAp_gJMlzgn-Wm-CuKCltJVacYD2ajn2pHWUxMFOtuw_4md2wvbMaUaa9zF6j5APnJWccf2pK7thGErBeF0yVbKtOiMbXu1koXZavyIbJpkqqmor35C3OXeMMa4qvSF_93GYbLJzOADN8-KPNI50fgTaxjSE8YHa0dMEB0g54CW2iEo2jEUY_eLA08GmGcYcZqABmU-R-mXq4Q_iENZDzrgB9Pkz_YYyfZz-qdIheuhXF3r_8xZdbH_MIa8GU3zyaEfx1IYRqHsMU35HXre2z_D-ZZ6Tu-8Xv_ZXxc2Py-v915vCSVHNhVCNB-G5kLq1qnHKikZZL0EJLa0AKfi21qqyvraO7Zh3THLkVLYB1TSNPCcfT7pTir8XyLPp4pLwu2yE0FoqzusaUeKEcinmnKA1UwqYxNFwZtZGTGfWRszaiGHKYCNI-nIiYRhwCJBMdgFGDDEkcLPxMfyP_gx_N5j_</recordid><startdate>20190901</startdate><enddate>20190901</enddate><creator>de Aguiar, D.J.M.</creator><creator>Padilha, A.F.</creator><creator>Plaut, R.L.</creator><creator>da Silva, M.R.</creator><creator>de Lima, N.B.</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20190901</creationdate><title>Comparative study on the forming and reversion of strain-induced martensite in two duplex stainless steels: Developing a model for VSM analysis of powders or fine chips</title><author>de Aguiar, D.J.M. ; Padilha, A.F. ; Plaut, R.L. ; da Silva, M.R. ; de Lima, N.B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-24bde2d1236fa4bc4a2b4ad3e4263a2e32159648ad9ac070dc0314bd8abe4bbb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Annealing</topic><topic>Austenite</topic><topic>Austenitic stainless steels</topic><topic>Comparative studies</topic><topic>Duplex stainless steels</topic><topic>Ferromagnetism</topic><topic>Fit equation</topic><topic>Magnetic measurement</topic><topic>Magnetic saturation</topic><topic>Martensite</topic><topic>Reversion</topic><topic>Stainless steel</topic><topic>Strain-induced martensite (α′)</topic><topic>Work hardening</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>de Aguiar, D.J.M.</creatorcontrib><creatorcontrib>Padilha, A.F.</creatorcontrib><creatorcontrib>Plaut, R.L.</creatorcontrib><creatorcontrib>da Silva, M.R.</creatorcontrib><creatorcontrib>de Lima, N.B.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of magnetism and magnetic materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>de Aguiar, D.J.M.</au><au>Padilha, A.F.</au><au>Plaut, R.L.</au><au>da Silva, M.R.</au><au>de Lima, N.B.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparative study on the forming and reversion of strain-induced martensite in two duplex stainless steels: Developing a model for VSM analysis of powders or fine chips</atitle><jtitle>Journal of magnetism and magnetic materials</jtitle><date>2019-09-01</date><risdate>2019</risdate><volume>485</volume><spage>8</spage><epage>15</epage><pages>8-15</pages><issn>0304-8853</issn><eissn>1873-4766</eissn><abstract>•Deformation by hand filing induced the formation of strain-induced martensite in DSS.•The content of the martensite fraction was higher in DSS than in SDSS.•Two VSM data fit equations were developed, one feasible for DSS and another for SDSS.•Values obtained using fit equations and XRD reasonably agreed with each other.
An original feature of this work is the proposal of two equations to fit the volume fraction of ferromagnetic (α + α′) phases that can be applied in the measurement of magnetic saturation of comminuted duplex and superduplex stainless steels (for example, powders or filed chips). Duplex stainless steels contain similar volume fractions of austenite (γ) and ferrite (α) in their microstructure. Two steels exemplify this class, namely the most widely used duplex UNS S31803 and superduplex UNS S32520 stainless steels. The phenomena of work hardening, formation, and reversion of strain-induced martensite (α′) in austenite were compared in both stainless steels. Samples were work-hardened and annealed under identical conditions, and their behavior was evaluated mainly through X-ray diffraction and magnetic measurements. Notably, the volume fraction of strain-induced α′ in duplex stainless steel was as high as 32%, which indicated that this steel had a greater tendency to form α′ than superduplex stainless steel, for which the corresponding value equaled 15%. Annealing at 650 °C for 2 h promoted the reversion of strain-induced α′ into γ, decreasing the volume fraction of the former phase from 32 to 2% (duplex) and from 15 to 6% (superduplex).</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jmmm.2019.04.054</doi><tpages>8</tpages></addata></record> |
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| subjects | Annealing Austenite Austenitic stainless steels Comparative studies Duplex stainless steels Ferromagnetism Fit equation Magnetic measurement Magnetic saturation Martensite Reversion Stainless steel Strain-induced martensite (α′) Work hardening X-ray diffraction |
| title | Comparative study on the forming and reversion of strain-induced martensite in two duplex stainless steels: Developing a model for VSM analysis of powders or fine chips |
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