Microstructure and Decomposition Kinetics of Supercooled Austenite in Medium Carbon Steel 38G2F
The morphology of structural components in hot rolled pipes made of 38G2F steel has been studied by optical metallography. It is shown that the sections elongated along the rolling direction with a morphology different from pearlite are sections of upper bainite, the hardness of which is comparable...
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| Veröffentlicht in: | Inorganic materials : applied research 2024-02, Vol.15 (1), p.41-45 |
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| creator | Ovsyannikov, A. B. Selivanova, O. V. Myakotina, I. V. Konovalov, S. S. Khotinov, V. A. |
| description | The morphology of structural components in hot rolled pipes made of 38G2F steel has been studied by optical metallography. It is shown that the sections elongated along the rolling direction with a morphology different from pearlite are sections of upper bainite, the hardness of which is comparable to the hardness of pearlite (~290–300 HV
μ
). Plotting the thermokinetic diagrams (TKD) of the decomposition of supercooled austenite, as well as a joint analysis of the microstructure and hardness, allowed us to determine the minimum velocity
V
cool
~ 0.5°C/s at which the bainite component in the pipe wall is formed. The temperature–time parameters of the decomposition of supercooled austenite with increasing austenitization temperature from 850 to 1000°C have been determined. |
| doi_str_mv | 10.1134/S2075113324010246 |
| format | Article |
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μ
). Plotting the thermokinetic diagrams (TKD) of the decomposition of supercooled austenite, as well as a joint analysis of the microstructure and hardness, allowed us to determine the minimum velocity
V
cool
~ 0.5°C/s at which the bainite component in the pipe wall is formed. The temperature–time parameters of the decomposition of supercooled austenite with increasing austenitization temperature from 850 to 1000°C have been determined.</description><identifier>ISSN: 2075-1133</identifier><identifier>EISSN: 2075-115X</identifier><identifier>DOI: 10.1134/S2075113324010246</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Austenite ; Bainite ; Chemistry ; Chemistry and Materials Science ; Decomposition ; Hardness ; Hot rolling ; Industrial Chemistry/Chemical Engineering ; Inorganic Chemistry ; Materials Science ; Medium carbon steels ; Metallography ; Microstructural analysis ; Microstructure ; Morphology ; Pearlite ; Rolling direction</subject><ispartof>Inorganic materials : applied research, 2024-02, Vol.15 (1), p.41-45</ispartof><rights>Pleiades Publishing, Ltd. 2024. ISSN 2075-1133, Inorganic Materials: Applied Research, 2024, Vol. 15, No. 1, pp. 41–45. © Pleiades Publishing, Ltd., 2024. Russian Text © The Author(s), 2023, published in Materialovedenie, 2023, No. 4, pp. 3–8.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c268t-4d78f51d5025aeb1f5be7196043232ae7e12498a9c48b9fe68370998764aa9853</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S2075113324010246$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S2075113324010246$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>315,781,785,27929,27930,41493,42562,51324</link.rule.ids></links><search><creatorcontrib>Ovsyannikov, A. B.</creatorcontrib><creatorcontrib>Selivanova, O. V.</creatorcontrib><creatorcontrib>Myakotina, I. V.</creatorcontrib><creatorcontrib>Konovalov, S. S.</creatorcontrib><creatorcontrib>Khotinov, V. A.</creatorcontrib><title>Microstructure and Decomposition Kinetics of Supercooled Austenite in Medium Carbon Steel 38G2F</title><title>Inorganic materials : applied research</title><addtitle>Inorg. Mater. Appl. Res</addtitle><description>The morphology of structural components in hot rolled pipes made of 38G2F steel has been studied by optical metallography. It is shown that the sections elongated along the rolling direction with a morphology different from pearlite are sections of upper bainite, the hardness of which is comparable to the hardness of pearlite (~290–300 HV
μ
). Plotting the thermokinetic diagrams (TKD) of the decomposition of supercooled austenite, as well as a joint analysis of the microstructure and hardness, allowed us to determine the minimum velocity
V
cool
~ 0.5°C/s at which the bainite component in the pipe wall is formed. The temperature–time parameters of the decomposition of supercooled austenite with increasing austenitization temperature from 850 to 1000°C have been determined.</description><subject>Austenite</subject><subject>Bainite</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Decomposition</subject><subject>Hardness</subject><subject>Hot rolling</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Inorganic Chemistry</subject><subject>Materials Science</subject><subject>Medium carbon steels</subject><subject>Metallography</subject><subject>Microstructural analysis</subject><subject>Microstructure</subject><subject>Morphology</subject><subject>Pearlite</subject><subject>Rolling direction</subject><issn>2075-1133</issn><issn>2075-115X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp1kE1Lw0AQhhdRsNT-AG8LnqP7meweS7Wt2OKhCt7CJpnIljYb9-PgvzehogdxLjMM7_MO8yJ0TcktpVzc7Rgp5DBxJgglTORnaDKuMkrl2_nPzPklmoWwJ0NJKrWQE1Rube1diD7VMXnApmvwPdTu2Ltgo3UdfrIdRFsH7Fq8Sz342rkDNHieQoTORsC2w1tobDrihfHVgOwiwAFztWLLK3TRmkOA2Xefotflw8tinW2eV4-L-SarWa5iJppCtZI2kjBpoKKtrKCgOieCM84MFECZ0MroWqhKt5ArXhCtVZELY7SSfIpuTr69dx8JQiz3LvluOFlyIjXXiupRRU-q8efgoS17b4_Gf5aUlGOU5Z8oB4admDBou3fwv87_Q1-r3XO2</recordid><startdate>20240201</startdate><enddate>20240201</enddate><creator>Ovsyannikov, A. B.</creator><creator>Selivanova, O. V.</creator><creator>Myakotina, I. V.</creator><creator>Konovalov, S. S.</creator><creator>Khotinov, V. A.</creator><general>Pleiades Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20240201</creationdate><title>Microstructure and Decomposition Kinetics of Supercooled Austenite in Medium Carbon Steel 38G2F</title><author>Ovsyannikov, A. B. ; Selivanova, O. V. ; Myakotina, I. V. ; Konovalov, S. S. ; Khotinov, V. A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c268t-4d78f51d5025aeb1f5be7196043232ae7e12498a9c48b9fe68370998764aa9853</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Austenite</topic><topic>Bainite</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Decomposition</topic><topic>Hardness</topic><topic>Hot rolling</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Inorganic Chemistry</topic><topic>Materials Science</topic><topic>Medium carbon steels</topic><topic>Metallography</topic><topic>Microstructural analysis</topic><topic>Microstructure</topic><topic>Morphology</topic><topic>Pearlite</topic><topic>Rolling direction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ovsyannikov, A. B.</creatorcontrib><creatorcontrib>Selivanova, O. V.</creatorcontrib><creatorcontrib>Myakotina, I. V.</creatorcontrib><creatorcontrib>Konovalov, S. S.</creatorcontrib><creatorcontrib>Khotinov, V. A.</creatorcontrib><collection>CrossRef</collection><jtitle>Inorganic materials : applied research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ovsyannikov, A. B.</au><au>Selivanova, O. V.</au><au>Myakotina, I. V.</au><au>Konovalov, S. S.</au><au>Khotinov, V. A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microstructure and Decomposition Kinetics of Supercooled Austenite in Medium Carbon Steel 38G2F</atitle><jtitle>Inorganic materials : applied research</jtitle><stitle>Inorg. Mater. Appl. Res</stitle><date>2024-02-01</date><risdate>2024</risdate><volume>15</volume><issue>1</issue><spage>41</spage><epage>45</epage><pages>41-45</pages><issn>2075-1133</issn><eissn>2075-115X</eissn><abstract>The morphology of structural components in hot rolled pipes made of 38G2F steel has been studied by optical metallography. It is shown that the sections elongated along the rolling direction with a morphology different from pearlite are sections of upper bainite, the hardness of which is comparable to the hardness of pearlite (~290–300 HV
μ
). Plotting the thermokinetic diagrams (TKD) of the decomposition of supercooled austenite, as well as a joint analysis of the microstructure and hardness, allowed us to determine the minimum velocity
V
cool
~ 0.5°C/s at which the bainite component in the pipe wall is formed. The temperature–time parameters of the decomposition of supercooled austenite with increasing austenitization temperature from 850 to 1000°C have been determined.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S2075113324010246</doi><tpages>5</tpages></addata></record> |
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| subjects | Austenite Bainite Chemistry Chemistry and Materials Science Decomposition Hardness Hot rolling Industrial Chemistry/Chemical Engineering Inorganic Chemistry Materials Science Medium carbon steels Metallography Microstructural analysis Microstructure Morphology Pearlite Rolling direction |
| title | Microstructure and Decomposition Kinetics of Supercooled Austenite in Medium Carbon Steel 38G2F |
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