Microstructure and mechanical properties of hot-rolled and heat-treated TRIP steel with direct quenching process
In the present study, a hot-rolled and heat-treated TRIP steel (Fe-0.25C-1.23Si-2.09Mn-2.92Al wt%) was successfully produced by a simple process that involved intercritical heat treatment (IHT) followed by direct quenching without bainite reaction step. The microstructure of the as-cast ingot, as-ho...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2017-08, Vol.702, p.350-359 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Wang, He-song Kang, Jian Dou, Wei-xue Zhang, Yuan-xiang Yuan, Guo Cao, Guang-ming Misra, R.D.K. Wang, Guo-dong |
| description | In the present study, a hot-rolled and heat-treated TRIP steel (Fe-0.25C-1.23Si-2.09Mn-2.92Al wt%) was successfully produced by a simple process that involved intercritical heat treatment (IHT) followed by direct quenching without bainite reaction step. The microstructure of the as-cast ingot, as-hot-rolled sheet and heat-treated sheet was studied and related to mechanical properties of the heat-treated sheet. It was observed that δ-ferrite was retained from the solidification stage and remained as a stable phase during different stages of processing because of the alloy design that included ~ 3wt% Al. Banded structure was obtained in both as-hot-rolled sheet and heat-treated sheet. The microstructure of 770–820°C heat-treated sheet consisted of δ-ferrite, retained austenite (RA), α-ferrite and martensite. Based on the alloy design and direct quenching process, ~ 20–30% volume fraction of RA was obtained in the heat-treated sheet. The 780°C heat-treated sheet exhibited an excellent combination of tensile strength and total elongation of 880MPa and 28%, respectively. |
| doi_str_mv | 10.1016/j.msea.2017.07.039 |
| format | Article |
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The microstructure of the as-cast ingot, as-hot-rolled sheet and heat-treated sheet was studied and related to mechanical properties of the heat-treated sheet. It was observed that δ-ferrite was retained from the solidification stage and remained as a stable phase during different stages of processing because of the alloy design that included ~ 3wt% Al. Banded structure was obtained in both as-hot-rolled sheet and heat-treated sheet. The microstructure of 770–820°C heat-treated sheet consisted of δ-ferrite, retained austenite (RA), α-ferrite and martensite. Based on the alloy design and direct quenching process, ~ 20–30% volume fraction of RA was obtained in the heat-treated sheet. The 780°C heat-treated sheet exhibited an excellent combination of tensile strength and total elongation of 880MPa and 28%, respectively.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2017.07.039</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Banded structure ; Concentration (composition) ; Delta ferrite ; Direct quenching ; Elongation ; Heat treating ; Heat treatment ; Hot rolling ; Martensite ; Mechanical properties ; Microstructure ; Quenching ; Retained austenite ; Steel ; Tensile strength ; TRIP steel ; TRIP steels ; δ-ferrite</subject><ispartof>Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2017-08, Vol.702, p.350-359</ispartof><rights>2017 Elsevier B.V.</rights><rights>Copyright Elsevier BV Aug 15, 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c328t-4c65fb5d8b1a906b79d43ff3fce6bc4f1c2ace0bc6350514dec8c36d025ac5733</citedby><cites>FETCH-LOGICAL-c328t-4c65fb5d8b1a906b79d43ff3fce6bc4f1c2ace0bc6350514dec8c36d025ac5733</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.msea.2017.07.039$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Wang, He-song</creatorcontrib><creatorcontrib>Kang, Jian</creatorcontrib><creatorcontrib>Dou, Wei-xue</creatorcontrib><creatorcontrib>Zhang, Yuan-xiang</creatorcontrib><creatorcontrib>Yuan, Guo</creatorcontrib><creatorcontrib>Cao, Guang-ming</creatorcontrib><creatorcontrib>Misra, R.D.K.</creatorcontrib><creatorcontrib>Wang, Guo-dong</creatorcontrib><title>Microstructure and mechanical properties of hot-rolled and heat-treated TRIP steel with direct quenching process</title><title>Materials science & engineering. A, Structural materials : properties, microstructure and processing</title><description>In the present study, a hot-rolled and heat-treated TRIP steel (Fe-0.25C-1.23Si-2.09Mn-2.92Al wt%) was successfully produced by a simple process that involved intercritical heat treatment (IHT) followed by direct quenching without bainite reaction step. The microstructure of the as-cast ingot, as-hot-rolled sheet and heat-treated sheet was studied and related to mechanical properties of the heat-treated sheet. It was observed that δ-ferrite was retained from the solidification stage and remained as a stable phase during different stages of processing because of the alloy design that included ~ 3wt% Al. Banded structure was obtained in both as-hot-rolled sheet and heat-treated sheet. The microstructure of 770–820°C heat-treated sheet consisted of δ-ferrite, retained austenite (RA), α-ferrite and martensite. Based on the alloy design and direct quenching process, ~ 20–30% volume fraction of RA was obtained in the heat-treated sheet. The 780°C heat-treated sheet exhibited an excellent combination of tensile strength and total elongation of 880MPa and 28%, respectively.</description><subject>Banded structure</subject><subject>Concentration (composition)</subject><subject>Delta ferrite</subject><subject>Direct quenching</subject><subject>Elongation</subject><subject>Heat treating</subject><subject>Heat treatment</subject><subject>Hot rolling</subject><subject>Martensite</subject><subject>Mechanical properties</subject><subject>Microstructure</subject><subject>Quenching</subject><subject>Retained austenite</subject><subject>Steel</subject><subject>Tensile strength</subject><subject>TRIP steel</subject><subject>TRIP steels</subject><subject>δ-ferrite</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp9kE1Lw0AQhhdRsFb_gKcFz6mz2STNghcpfhQqitTzsplMzJY0qbtbxX_vxnoWhhkY3nc-HsYuBcwEiOJ6M9t6MrMUxHwGMaQ6YhNRzmWSKVkcswmoVCQ5KHnKzrzfAIDIIJ-w3ZNFN_jg9hj2jrjpa74lbE1v0XR854YduWDJ86Hh7RASN3Qd1b-6lkxIgos5NtavyxfuA1HHv2xoeW0dYeAfe-qxtf37OArJ-3N20pjO08VfnbK3-7v14jFZPT8sF7erBGVahiTDIm-qvC4rYRQU1VzVmWwa2SAVFWaNwNQgQYWFzCEXWU1YoixqSHOD-VzKKbs6zI174xE-6M2wd31cqYUqQJVZRBBV6UE1QvCOGr1zdmvctxagR7J6o0eyeiSrIYZU0XRzMFG8_9OS0x5tfJMOP-t6sP_ZfwAqPYRP</recordid><startdate>20170815</startdate><enddate>20170815</enddate><creator>Wang, He-song</creator><creator>Kang, Jian</creator><creator>Dou, Wei-xue</creator><creator>Zhang, Yuan-xiang</creator><creator>Yuan, Guo</creator><creator>Cao, Guang-ming</creator><creator>Misra, R.D.K.</creator><creator>Wang, Guo-dong</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20170815</creationdate><title>Microstructure and mechanical properties of hot-rolled and heat-treated TRIP steel with direct quenching process</title><author>Wang, He-song ; Kang, Jian ; Dou, Wei-xue ; Zhang, Yuan-xiang ; Yuan, Guo ; Cao, Guang-ming ; Misra, R.D.K. ; Wang, Guo-dong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-4c65fb5d8b1a906b79d43ff3fce6bc4f1c2ace0bc6350514dec8c36d025ac5733</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Banded structure</topic><topic>Concentration (composition)</topic><topic>Delta ferrite</topic><topic>Direct quenching</topic><topic>Elongation</topic><topic>Heat treating</topic><topic>Heat treatment</topic><topic>Hot rolling</topic><topic>Martensite</topic><topic>Mechanical properties</topic><topic>Microstructure</topic><topic>Quenching</topic><topic>Retained austenite</topic><topic>Steel</topic><topic>Tensile strength</topic><topic>TRIP steel</topic><topic>TRIP steels</topic><topic>δ-ferrite</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, He-song</creatorcontrib><creatorcontrib>Kang, Jian</creatorcontrib><creatorcontrib>Dou, Wei-xue</creatorcontrib><creatorcontrib>Zhang, Yuan-xiang</creatorcontrib><creatorcontrib>Yuan, Guo</creatorcontrib><creatorcontrib>Cao, Guang-ming</creatorcontrib><creatorcontrib>Misra, R.D.K.</creatorcontrib><creatorcontrib>Wang, Guo-dong</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 & engineering. 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A, Structural materials : properties, microstructure and processing</jtitle><date>2017-08-15</date><risdate>2017</risdate><volume>702</volume><spage>350</spage><epage>359</epage><pages>350-359</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>In the present study, a hot-rolled and heat-treated TRIP steel (Fe-0.25C-1.23Si-2.09Mn-2.92Al wt%) was successfully produced by a simple process that involved intercritical heat treatment (IHT) followed by direct quenching without bainite reaction step. The microstructure of the as-cast ingot, as-hot-rolled sheet and heat-treated sheet was studied and related to mechanical properties of the heat-treated sheet. It was observed that δ-ferrite was retained from the solidification stage and remained as a stable phase during different stages of processing because of the alloy design that included ~ 3wt% Al. Banded structure was obtained in both as-hot-rolled sheet and heat-treated sheet. The microstructure of 770–820°C heat-treated sheet consisted of δ-ferrite, retained austenite (RA), α-ferrite and martensite. Based on the alloy design and direct quenching process, ~ 20–30% volume fraction of RA was obtained in the heat-treated sheet. The 780°C heat-treated sheet exhibited an excellent combination of tensile strength and total elongation of 880MPa and 28%, respectively.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2017.07.039</doi><tpages>10</tpages></addata></record> |
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| subjects | Banded structure Concentration (composition) Delta ferrite Direct quenching Elongation Heat treating Heat treatment Hot rolling Martensite Mechanical properties Microstructure Quenching Retained austenite Steel Tensile strength TRIP steel TRIP steels δ-ferrite |
| title | Microstructure and mechanical properties of hot-rolled and heat-treated TRIP steel with direct quenching process |
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