Features of Isothermal Bainite Formation in Steel 20Kh2G2SNMA
A dilatometric study of the bainite transformation in 20Kh2G2SNMA steel during isothermal holding in the temperature range of 280–380°C was carried out. The kinetics of the bainite transformation is determined, and the values of the coefficients k and n of the Austin–Rickett equation are established...
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| Veröffentlicht in: | Metallurgist (New York) 2023-11, Vol.67 (7-8), p.915-927 |
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| creator | Maisuradze, M. V. Kuklina, A. A. Ryzhkov, M. A. Lebedev, D. I. Nazarova, V. V. Okishev, K. Yu |
| description | A dilatometric study of the bainite transformation in 20Kh2G2SNMA steel during isothermal holding in the temperature range of 280–380°C was carried out. The kinetics of the bainite transformation is determined, and the values of the coefficients
k
and
n
of the Austin–Rickett equation are established. The fraction of retained austenite in the steel structure following isothermal hardening was estimated using X-ray diffraction analysis. It is shown that, at 320°C and higher, the carbon content in retained austenite is in satisfactory agreement with the theoretically predicted values, and below 320°C, there is a discrepancy associated with slower bainite transformation and carbon partitioning. A correlation has been established between the impact strength, the fraction of bainite and retained austenite, and the carbon content in the latter. It is shown that with an increase in the fraction of bainite during isothermal holding, the fraction of retained austenite in steel increases, and the carbon content in it decreases, which adversely affects the impact strength of steel. |
| doi_str_mv | 10.1007/s11015-023-01581-6 |
| format | Article |
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k
and
n
of the Austin–Rickett equation are established. The fraction of retained austenite in the steel structure following isothermal hardening was estimated using X-ray diffraction analysis. It is shown that, at 320°C and higher, the carbon content in retained austenite is in satisfactory agreement with the theoretically predicted values, and below 320°C, there is a discrepancy associated with slower bainite transformation and carbon partitioning. A correlation has been established between the impact strength, the fraction of bainite and retained austenite, and the carbon content in the latter. It is shown that with an increase in the fraction of bainite during isothermal holding, the fraction of retained austenite in steel increases, and the carbon content in it decreases, which adversely affects the impact strength of steel.</description><identifier>ISSN: 0026-0894</identifier><identifier>EISSN: 1573-8892</identifier><identifier>DOI: 10.1007/s11015-023-01581-6</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Bainite ; Bainitic steel ; Bainitic transformations ; Carbon ; Carbon content ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Diffraction ; Dilatometry ; Impact strength ; Materials Science ; Metallic Materials ; Retained austenite ; X-rays</subject><ispartof>Metallurgist (New York), 2023-11, Vol.67 (7-8), p.915-927</ispartof><rights>Springer Science+Business Media, LLC, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><rights>COPYRIGHT 2023 Springer</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c309t-f3c95692b6973a974b491a6f6d52b64beee00cee8caee1547f7e75f3387d10123</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11015-023-01581-6$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11015-023-01581-6$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Maisuradze, M. V.</creatorcontrib><creatorcontrib>Kuklina, A. A.</creatorcontrib><creatorcontrib>Ryzhkov, M. A.</creatorcontrib><creatorcontrib>Lebedev, D. I.</creatorcontrib><creatorcontrib>Nazarova, V. V.</creatorcontrib><creatorcontrib>Okishev, K. Yu</creatorcontrib><title>Features of Isothermal Bainite Formation in Steel 20Kh2G2SNMA</title><title>Metallurgist (New York)</title><addtitle>Metallurgist</addtitle><description>A dilatometric study of the bainite transformation in 20Kh2G2SNMA steel during isothermal holding in the temperature range of 280–380°C was carried out. The kinetics of the bainite transformation is determined, and the values of the coefficients
k
and
n
of the Austin–Rickett equation are established. The fraction of retained austenite in the steel structure following isothermal hardening was estimated using X-ray diffraction analysis. It is shown that, at 320°C and higher, the carbon content in retained austenite is in satisfactory agreement with the theoretically predicted values, and below 320°C, there is a discrepancy associated with slower bainite transformation and carbon partitioning. A correlation has been established between the impact strength, the fraction of bainite and retained austenite, and the carbon content in the latter. It is shown that with an increase in the fraction of bainite during isothermal holding, the fraction of retained austenite in steel increases, and the carbon content in it decreases, which adversely affects the impact strength of steel.</description><subject>Bainite</subject><subject>Bainitic steel</subject><subject>Bainitic transformations</subject><subject>Carbon</subject><subject>Carbon content</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Diffraction</subject><subject>Dilatometry</subject><subject>Impact strength</subject><subject>Materials Science</subject><subject>Metallic Materials</subject><subject>Retained austenite</subject><subject>X-rays</subject><issn>0026-0894</issn><issn>1573-8892</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp9kD1PwzAQhi0EEqXwB5giMaec7diOB4ZS0VJRYCjMlpue21RpXOx04N9jCBIbuuF0p_e5j5eQawojCqBuI6VARQ6M5ymXNJcnZECF4nlZanZKBgBM5lDq4pxcxLgDSBjoAbmbou2OAWPmXTaPvtti2Nsmu7d1W3eYTX0qu9q3Wd1myw6xyRg8bdmMLV-ex5fkzNkm4tVvHpL36cPb5DFfvM7mk_EirzjoLne80kJqtpJacatVsSo0tdLJtUi9YoWIABViWVlEKgrlFCrhOC_VOv3F-JDc9HMPwX8cMXZm54-hTSsN01RIUWpZJtWoV21sg6Zune-CrVKscV9XvkVXp_5YKS0pKFEkgPVAFXyMAZ05hHpvw6ehYL59Nb2vJvlqfnw1MkG8h2IStxsMf7f8Q30Bp1V38w</recordid><startdate>20231101</startdate><enddate>20231101</enddate><creator>Maisuradze, M. V.</creator><creator>Kuklina, A. A.</creator><creator>Ryzhkov, M. A.</creator><creator>Lebedev, D. I.</creator><creator>Nazarova, V. V.</creator><creator>Okishev, K. Yu</creator><general>Springer US</general><general>Springer</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20231101</creationdate><title>Features of Isothermal Bainite Formation in Steel 20Kh2G2SNMA</title><author>Maisuradze, M. V. ; Kuklina, A. A. ; Ryzhkov, M. A. ; Lebedev, D. I. ; Nazarova, V. V. ; Okishev, K. Yu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c309t-f3c95692b6973a974b491a6f6d52b64beee00cee8caee1547f7e75f3387d10123</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Bainite</topic><topic>Bainitic steel</topic><topic>Bainitic transformations</topic><topic>Carbon</topic><topic>Carbon content</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry and Materials Science</topic><topic>Diffraction</topic><topic>Dilatometry</topic><topic>Impact strength</topic><topic>Materials Science</topic><topic>Metallic Materials</topic><topic>Retained austenite</topic><topic>X-rays</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Maisuradze, M. V.</creatorcontrib><creatorcontrib>Kuklina, A. A.</creatorcontrib><creatorcontrib>Ryzhkov, M. A.</creatorcontrib><creatorcontrib>Lebedev, D. I.</creatorcontrib><creatorcontrib>Nazarova, V. V.</creatorcontrib><creatorcontrib>Okishev, K. Yu</creatorcontrib><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Metallurgist (New York)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Maisuradze, M. V.</au><au>Kuklina, A. A.</au><au>Ryzhkov, M. A.</au><au>Lebedev, D. I.</au><au>Nazarova, V. V.</au><au>Okishev, K. Yu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Features of Isothermal Bainite Formation in Steel 20Kh2G2SNMA</atitle><jtitle>Metallurgist (New York)</jtitle><stitle>Metallurgist</stitle><date>2023-11-01</date><risdate>2023</risdate><volume>67</volume><issue>7-8</issue><spage>915</spage><epage>927</epage><pages>915-927</pages><issn>0026-0894</issn><eissn>1573-8892</eissn><abstract>A dilatometric study of the bainite transformation in 20Kh2G2SNMA steel during isothermal holding in the temperature range of 280–380°C was carried out. The kinetics of the bainite transformation is determined, and the values of the coefficients
k
and
n
of the Austin–Rickett equation are established. The fraction of retained austenite in the steel structure following isothermal hardening was estimated using X-ray diffraction analysis. It is shown that, at 320°C and higher, the carbon content in retained austenite is in satisfactory agreement with the theoretically predicted values, and below 320°C, there is a discrepancy associated with slower bainite transformation and carbon partitioning. A correlation has been established between the impact strength, the fraction of bainite and retained austenite, and the carbon content in the latter. It is shown that with an increase in the fraction of bainite during isothermal holding, the fraction of retained austenite in steel increases, and the carbon content in it decreases, which adversely affects the impact strength of steel.</abstract><cop>New York</cop><pub>Springer US</pub><doi>10.1007/s11015-023-01581-6</doi><tpages>13</tpages></addata></record> |
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| subjects | Bainite Bainitic steel Bainitic transformations Carbon Carbon content Characterization and Evaluation of Materials Chemistry and Materials Science Diffraction Dilatometry Impact strength Materials Science Metallic Materials Retained austenite X-rays |
| title | Features of Isothermal Bainite Formation in Steel 20Kh2G2SNMA |
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