Effect of Cobalt Addition on Transformation Behavior and Drawability of Hypereutectoid Steel Wire
The grain boundary cementite and Widmanstätten cementite consisted in a hypereutectoid steel have been considered to cause the brittle fracture. In this study, the effect of cobalt addition on the transformation behavior of the hypereutectoid steel has been examined in order to control the grain bou...
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| Veröffentlicht in: | ISIJ International 1991/03/15, Vol.31(3), pp.304-311 |
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| creator | Kanetsuki, Yutaka Ibaraki, Nobuhiko Ashida, Shinzo |
| description | The grain boundary cementite and Widmanstätten cementite consisted in a hypereutectoid steel have been considered to cause the brittle fracture. In this study, the effect of cobalt addition on the transformation behavior of the hypereutectoid steel has been examined in order to control the grain boundary cementite precipitation. It was found that in the case of hypereutectoid steels containing carbon content less than 1.3 wt%, the grain boundary cementite precipitation could be suppressed with the cobalt addition and patenting treatment. By suppression of grain boundary cementite, the hypereutectoid steel showed good drawability comparable with that of eutectoid steel and the increase of tensile strength comparing with eutectoid steel. The analysis using Embury-Fisher relation showed that the increase of workhardening rate was due to the refinement of lamellar spacing, which was confirmed by microstructural observation. Furthermore, it was found that refinement of lamellar spacing was attributed to increased carbon content in the case of fully pearlitic microstructure. The effect of cobalt addition on the transformation behavior was also discussed from CCT curves. |
| doi_str_mv | 10.2355/isijinternational.31.304 |
| format | Article |
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In this study, the effect of cobalt addition on the transformation behavior of the hypereutectoid steel has been examined in order to control the grain boundary cementite precipitation. It was found that in the case of hypereutectoid steels containing carbon content less than 1.3 wt%, the grain boundary cementite precipitation could be suppressed with the cobalt addition and patenting treatment. By suppression of grain boundary cementite, the hypereutectoid steel showed good drawability comparable with that of eutectoid steel and the increase of tensile strength comparing with eutectoid steel. The analysis using Embury-Fisher relation showed that the increase of workhardening rate was due to the refinement of lamellar spacing, which was confirmed by microstructural observation. Furthermore, it was found that refinement of lamellar spacing was attributed to increased carbon content in the case of fully pearlitic microstructure. The effect of cobalt addition on the transformation behavior was also discussed from CCT curves.</description><identifier>ISSN: 0915-1559</identifier><identifier>EISSN: 1347-5460</identifier><identifier>DOI: 10.2355/isijinternational.31.304</identifier><language>eng</language><publisher>The Iron and Steel Institute of Japan</publisher><subject>cobalt ; grain boundary cementite ; hypereutectoid steel ; patenting ; Widmanstätten cementite</subject><ispartof>ISIJ International, 1991/03/15, Vol.31(3), pp.304-311</ispartof><rights>The Iron and Steel Institute of Japan</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c548t-3a72fc4211c7d857db08d28b6bbc4bf3ff737ae4d5c327bb0d51e9c15c76e5373</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1877,27901,27902</link.rule.ids></links><search><creatorcontrib>Kanetsuki, Yutaka</creatorcontrib><creatorcontrib>Ibaraki, Nobuhiko</creatorcontrib><creatorcontrib>Ashida, Shinzo</creatorcontrib><title>Effect of Cobalt Addition on Transformation Behavior and Drawability of Hypereutectoid Steel Wire</title><title>ISIJ International</title><addtitle>ISIJ Int.</addtitle><description>The grain boundary cementite and Widmanstätten cementite consisted in a hypereutectoid steel have been considered to cause the brittle fracture. In this study, the effect of cobalt addition on the transformation behavior of the hypereutectoid steel has been examined in order to control the grain boundary cementite precipitation. It was found that in the case of hypereutectoid steels containing carbon content less than 1.3 wt%, the grain boundary cementite precipitation could be suppressed with the cobalt addition and patenting treatment. By suppression of grain boundary cementite, the hypereutectoid steel showed good drawability comparable with that of eutectoid steel and the increase of tensile strength comparing with eutectoid steel. The analysis using Embury-Fisher relation showed that the increase of workhardening rate was due to the refinement of lamellar spacing, which was confirmed by microstructural observation. Furthermore, it was found that refinement of lamellar spacing was attributed to increased carbon content in the case of fully pearlitic microstructure. The effect of cobalt addition on the transformation behavior was also discussed from CCT curves.</description><subject>cobalt</subject><subject>grain boundary cementite</subject><subject>hypereutectoid steel</subject><subject>patenting</subject><subject>Widmanstätten cementite</subject><issn>0915-1559</issn><issn>1347-5460</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1991</creationdate><recordtype>article</recordtype><recordid>eNplkMFOAjEQQBujiQT5h_7AYrtt6e4REcWExBgxHjfTdiolyy7pVg1_7yKEC8lk5jLvHR4hlLNxLpS6D13YhCZhbCCFtoF6LPhYMHlFBlxInSk5YddkwEquMq5UeUtGXRcMY7kspOBiQGDuPdpEW09nrYE60alz4SCj_awiNJ1v4_ZfTx9wDT-hjRQaRx8j_IIJdUj7A73Y7zDid-plbXD0PSHW9DNEvCM3HuoOR6c7JB9P89VskS1fn19m02VmlSxSJkDn3sqcc6tdobQzrHB5YSbGWGm88F4LDSidsiLXxjCnOJaWK6snqIQWQ1IcvTa2XRfRV7sYthD3FWfVoVZ1UasSvOpr9ejbEd10Cb7wDEJMwdZ4CfKyKP_h02Ly_GvXECtsxB-nGYPI</recordid><startdate>19910101</startdate><enddate>19910101</enddate><creator>Kanetsuki, Yutaka</creator><creator>Ibaraki, Nobuhiko</creator><creator>Ashida, Shinzo</creator><general>The Iron and Steel Institute of Japan</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19910101</creationdate><title>Effect of Cobalt Addition on Transformation Behavior and Drawability of Hypereutectoid Steel Wire</title><author>Kanetsuki, Yutaka ; Ibaraki, Nobuhiko ; Ashida, Shinzo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c548t-3a72fc4211c7d857db08d28b6bbc4bf3ff737ae4d5c327bb0d51e9c15c76e5373</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1991</creationdate><topic>cobalt</topic><topic>grain boundary cementite</topic><topic>hypereutectoid steel</topic><topic>patenting</topic><topic>Widmanstätten cementite</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kanetsuki, Yutaka</creatorcontrib><creatorcontrib>Ibaraki, Nobuhiko</creatorcontrib><creatorcontrib>Ashida, Shinzo</creatorcontrib><collection>CrossRef</collection><jtitle>ISIJ International</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kanetsuki, Yutaka</au><au>Ibaraki, Nobuhiko</au><au>Ashida, Shinzo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Cobalt Addition on Transformation Behavior and Drawability of Hypereutectoid Steel Wire</atitle><jtitle>ISIJ International</jtitle><addtitle>ISIJ Int.</addtitle><date>1991-01-01</date><risdate>1991</risdate><volume>31</volume><issue>3</issue><spage>304</spage><epage>311</epage><pages>304-311</pages><issn>0915-1559</issn><eissn>1347-5460</eissn><abstract>The grain boundary cementite and Widmanstätten cementite consisted in a hypereutectoid steel have been considered to cause the brittle fracture. In this study, the effect of cobalt addition on the transformation behavior of the hypereutectoid steel has been examined in order to control the grain boundary cementite precipitation. It was found that in the case of hypereutectoid steels containing carbon content less than 1.3 wt%, the grain boundary cementite precipitation could be suppressed with the cobalt addition and patenting treatment. By suppression of grain boundary cementite, the hypereutectoid steel showed good drawability comparable with that of eutectoid steel and the increase of tensile strength comparing with eutectoid steel. The analysis using Embury-Fisher relation showed that the increase of workhardening rate was due to the refinement of lamellar spacing, which was confirmed by microstructural observation. Furthermore, it was found that refinement of lamellar spacing was attributed to increased carbon content in the case of fully pearlitic microstructure. The effect of cobalt addition on the transformation behavior was also discussed from CCT curves.</abstract><pub>The Iron and Steel Institute of Japan</pub><doi>10.2355/isijinternational.31.304</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| source | Full-Text Journals in Chemistry (Open access); EZB Electronic Journals Library; J-STAGE |
| subjects | cobalt grain boundary cementite hypereutectoid steel patenting Widmanstätten cementite |
| title | Effect of Cobalt Addition on Transformation Behavior and Drawability of Hypereutectoid Steel Wire |
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