Morphology and growth process of bainitic ferrite in steels
The morphologies and the formation mechanisms of isothermally transformed Widmanstatten ferrite and bainite in various steels were investigated. Widmanstatten ferrite often grew from the grain boundary ferrite allotriomorph formed by a diffusional mechanism in the temperature range of the upper C-cu...
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| Veröffentlicht in: | Metals and materials (Seoul, Korea) Korea), 1998-01, Vol.4 (2), p.125-134 |
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| creator | Jung, Yun-Chul Kim, Sung-Joon Ohmori, Yasuya |
| description | The morphologies and the formation mechanisms of isothermally transformed Widmanstatten ferrite and bainite in various steels were investigated. Widmanstatten ferrite often grew from the grain boundary ferrite allotriomorph formed by a diffusional mechanism in the temperature range of the upper C-curve, whereas, bainite grew directly from an austenite grain boundary showing its own C-curve in a TIT diagram at temperatures between Bs (bainite starting temperature) and Ms (martensite starting temperature). Both structures accompanied well-defined surface reliefs of the invariant plane strain-type, and were in the shape of a lath or a plate consisting of several parallel needle-like ferrite subunits with parallelogram cross sc:ctions. The crystallographic properties of Widmanstatten ferrite and upper bainite were similar to those of lath martensite. Therefore, it was concluded that the difference between bainitic ferrite and Widmanstatten ferrite existed only in the nucleation events, where both structures grew by the same mechanism. |
| doi_str_mv | 10.1007/BF03026029 |
| format | Article |
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Widmanstatten ferrite often grew from the grain boundary ferrite allotriomorph formed by a diffusional mechanism in the temperature range of the upper C-curve, whereas, bainite grew directly from an austenite grain boundary showing its own C-curve in a TIT diagram at temperatures between Bs (bainite starting temperature) and Ms (martensite starting temperature). Both structures accompanied well-defined surface reliefs of the invariant plane strain-type, and were in the shape of a lath or a plate consisting of several parallel needle-like ferrite subunits with parallelogram cross sc:ctions. The crystallographic properties of Widmanstatten ferrite and upper bainite were similar to those of lath martensite. Therefore, it was concluded that the difference between bainitic ferrite and Widmanstatten ferrite existed only in the nucleation events, where both structures grew by the same mechanism.</description><identifier>ISSN: 1225-9438</identifier><identifier>ISSN: 1598-9623</identifier><identifier>EISSN: 2005-4149</identifier><identifier>DOI: 10.1007/BF03026029</identifier><language>eng</language><publisher>Seoul: Springer Nature B.V</publisher><subject>Alloys ; Bainite ; Crystallography ; Ferrite ; Grain boundaries ; Martensite ; Metallurgy ; Morphology ; Nucleation ; Parallelograms ; Plane strain ; Steels ; Widmanstatten structure</subject><ispartof>Metals and materials (Seoul, Korea), 1998-01, Vol.4 (2), p.125-134</ispartof><rights>Springer 1998.</rights><rights>Springer 1998</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c315t-1294c9f54801e246cb373cc7470f125c6fa2c48c6c08a6610a5de60bcea9fb163</citedby><cites>FETCH-LOGICAL-c315t-1294c9f54801e246cb373cc7470f125c6fa2c48c6c08a6610a5de60bcea9fb163</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785,27928,27929</link.rule.ids></links><search><creatorcontrib>Jung, Yun-Chul</creatorcontrib><creatorcontrib>Kim, Sung-Joon</creatorcontrib><creatorcontrib>Ohmori, Yasuya</creatorcontrib><title>Morphology and growth process of bainitic ferrite in steels</title><title>Metals and materials (Seoul, Korea)</title><description>The morphologies and the formation mechanisms of isothermally transformed Widmanstatten ferrite and bainite in various steels were investigated. Widmanstatten ferrite often grew from the grain boundary ferrite allotriomorph formed by a diffusional mechanism in the temperature range of the upper C-curve, whereas, bainite grew directly from an austenite grain boundary showing its own C-curve in a TIT diagram at temperatures between Bs (bainite starting temperature) and Ms (martensite starting temperature). Both structures accompanied well-defined surface reliefs of the invariant plane strain-type, and were in the shape of a lath or a plate consisting of several parallel needle-like ferrite subunits with parallelogram cross sc:ctions. The crystallographic properties of Widmanstatten ferrite and upper bainite were similar to those of lath martensite. Therefore, it was concluded that the difference between bainitic ferrite and Widmanstatten ferrite existed only in the nucleation events, where both structures grew by the same mechanism.</description><subject>Alloys</subject><subject>Bainite</subject><subject>Crystallography</subject><subject>Ferrite</subject><subject>Grain boundaries</subject><subject>Martensite</subject><subject>Metallurgy</subject><subject>Morphology</subject><subject>Nucleation</subject><subject>Parallelograms</subject><subject>Plane strain</subject><subject>Steels</subject><subject>Widmanstatten structure</subject><issn>1225-9438</issn><issn>1598-9623</issn><issn>2005-4149</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp10M1KAzEUBeAgCpbajU8QFFwIozf_E1xpsSpU3Og6ZNKkTZlOajJF-vaOKAiCd3M3H4fDQeiUwBUBUNd3M2BAJVB9gEYUQFSccH2IRoRSUWnO6mM0KWUNw3EhJZMjdPOc8naV2rTcY9st8DKnj36Ftzk5XwpOATc2drGPDgefc-w9jh0uvfdtOUFHwbbFT37-GL3N7l-nj9X85eFpejuvHCOirwjV3OkgeA3EUy5dwxRzTnEFgVDhZLDU8dpJB7WVkoAVCy-hcd7q0BDJxujiO3do9b7zpTebWJxvW9v5tCuGSskZ1WqAZ3_gOu1yN3QzmkjKlWBiQOf_IapqRXktNBvU5bdyOZWSfTDbHDc27w0B87W2-V2bfQIqpm7a</recordid><startdate>19980101</startdate><enddate>19980101</enddate><creator>Jung, Yun-Chul</creator><creator>Kim, Sung-Joon</creator><creator>Ohmori, Yasuya</creator><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>19980101</creationdate><title>Morphology and growth process of bainitic ferrite in steels</title><author>Jung, Yun-Chul ; Kim, Sung-Joon ; Ohmori, Yasuya</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c315t-1294c9f54801e246cb373cc7470f125c6fa2c48c6c08a6610a5de60bcea9fb163</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><topic>Alloys</topic><topic>Bainite</topic><topic>Crystallography</topic><topic>Ferrite</topic><topic>Grain boundaries</topic><topic>Martensite</topic><topic>Metallurgy</topic><topic>Morphology</topic><topic>Nucleation</topic><topic>Parallelograms</topic><topic>Plane strain</topic><topic>Steels</topic><topic>Widmanstatten structure</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jung, Yun-Chul</creatorcontrib><creatorcontrib>Kim, Sung-Joon</creatorcontrib><creatorcontrib>Ohmori, Yasuya</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Metals and materials (Seoul, Korea)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jung, Yun-Chul</au><au>Kim, Sung-Joon</au><au>Ohmori, Yasuya</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Morphology and growth process of bainitic ferrite in steels</atitle><jtitle>Metals and materials (Seoul, Korea)</jtitle><date>1998-01-01</date><risdate>1998</risdate><volume>4</volume><issue>2</issue><spage>125</spage><epage>134</epage><pages>125-134</pages><issn>1225-9438</issn><issn>1598-9623</issn><eissn>2005-4149</eissn><abstract>The morphologies and the formation mechanisms of isothermally transformed Widmanstatten ferrite and bainite in various steels were investigated. Widmanstatten ferrite often grew from the grain boundary ferrite allotriomorph formed by a diffusional mechanism in the temperature range of the upper C-curve, whereas, bainite grew directly from an austenite grain boundary showing its own C-curve in a TIT diagram at temperatures between Bs (bainite starting temperature) and Ms (martensite starting temperature). Both structures accompanied well-defined surface reliefs of the invariant plane strain-type, and were in the shape of a lath or a plate consisting of several parallel needle-like ferrite subunits with parallelogram cross sc:ctions. The crystallographic properties of Widmanstatten ferrite and upper bainite were similar to those of lath martensite. Therefore, it was concluded that the difference between bainitic ferrite and Widmanstatten ferrite existed only in the nucleation events, where both structures grew by the same mechanism.</abstract><cop>Seoul</cop><pub>Springer Nature B.V</pub><doi>10.1007/BF03026029</doi><tpages>10</tpages></addata></record> |
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| source | SpringerNature Journals |
| subjects | Alloys Bainite Crystallography Ferrite Grain boundaries Martensite Metallurgy Morphology Nucleation Parallelograms Plane strain Steels Widmanstatten structure |
| title | Morphology and growth process of bainitic ferrite in steels |
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