Evolution and Coarsening of Carbides in 2. 25Cr-1Mo Steel Weld Metal During High Temperature Tempering
Transformation and coarsening of carbides in 2. 25Cr-1Mo steel weld metal during tempering at 700 °C for different time intervals ranging from 1 to 150 h were examined by transmission electron microscopy and scanning electron microscopy. M 3 C carbides were observed in the as-welded specimens and wh...
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| Veröffentlicht in: | Journal of iron and steel research, international international, 2010-05, Vol.17 (5), p.74-78 |
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| creator | TAO, Peng ZHANG, Chi YANG, Zhi-gang Hiroyuki, Takeda |
| description | Transformation and coarsening of carbides in 2. 25Cr-1Mo steel weld metal during tempering at 700 °C for different time intervals ranging from 1 to 150 h were examined by transmission electron microscopy and scanning electron microscopy. M
3 C carbides were observed in the as-welded specimens and when tempered, the precipitates were mainly composed of M
3 C, M
7 C
3, and M
23 C
6 carbides. A sequence for corresponding carbide transformation during tempering with initial precipitation of M
3 C and the subsequent precipitation of M
7 C
3 and M
23 C
6 was proposed. The precipitation of M
7 C
3 with higher chromium content was the main factor contributing to the decrease in coarsening rate of precipitates after prolonged tempering. The decrease in hardness of the tempered specimens agreed well with the prediction of the weakening of precipitation strengthening owing to the coarsening of carbides. |
| doi_str_mv | 10.1016/S1006-706X(10)60103-3 |
| format | Article |
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3 C carbides were observed in the as-welded specimens and when tempered, the precipitates were mainly composed of M
3 C, M
7 C
3, and M
23 C
6 carbides. A sequence for corresponding carbide transformation during tempering with initial precipitation of M
3 C and the subsequent precipitation of M
7 C
3 and M
23 C
6 was proposed. The precipitation of M
7 C
3 with higher chromium content was the main factor contributing to the decrease in coarsening rate of precipitates after prolonged tempering. The decrease in hardness of the tempered specimens agreed well with the prediction of the weakening of precipitation strengthening owing to the coarsening of carbides.</description><identifier>ISSN: 1006-706X</identifier><identifier>EISSN: 2210-3988</identifier><identifier>DOI: 10.1016/S1006-706X(10)60103-3</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>carbide ; Carbides ; Chromium molybdenum steels ; Coarsening ; Iron and steel industry ; Precipitates ; Precipitation ; Steels ; Tempering ; Transformations ; weld metal</subject><ispartof>Journal of iron and steel research, international, 2010-05, Vol.17 (5), p.74-78</ispartof><rights>2010 Central Iron and Steel Research Institute</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S1006-706X(10)60103-3$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>TAO, Peng</creatorcontrib><creatorcontrib>ZHANG, Chi</creatorcontrib><creatorcontrib>YANG, Zhi-gang</creatorcontrib><creatorcontrib>Hiroyuki, Takeda</creatorcontrib><title>Evolution and Coarsening of Carbides in 2. 25Cr-1Mo Steel Weld Metal During High Temperature Tempering</title><title>Journal of iron and steel research, international</title><description>Transformation and coarsening of carbides in 2. 25Cr-1Mo steel weld metal during tempering at 700 °C for different time intervals ranging from 1 to 150 h were examined by transmission electron microscopy and scanning electron microscopy. M
3 C carbides were observed in the as-welded specimens and when tempered, the precipitates were mainly composed of M
3 C, M
7 C
3, and M
23 C
6 carbides. A sequence for corresponding carbide transformation during tempering with initial precipitation of M
3 C and the subsequent precipitation of M
7 C
3 and M
23 C
6 was proposed. The precipitation of M
7 C
3 with higher chromium content was the main factor contributing to the decrease in coarsening rate of precipitates after prolonged tempering. The decrease in hardness of the tempered specimens agreed well with the prediction of the weakening of precipitation strengthening owing to the coarsening of carbides.</description><subject>carbide</subject><subject>Carbides</subject><subject>Chromium molybdenum steels</subject><subject>Coarsening</subject><subject>Iron and steel industry</subject><subject>Precipitates</subject><subject>Precipitation</subject><subject>Steels</subject><subject>Tempering</subject><subject>Transformations</subject><subject>weld metal</subject><issn>1006-706X</issn><issn>2210-3988</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNo9kFFLwzAQx4MoOHQfQcib-tCZ5NK0fRKp0wkbPmyibyFtrjPStZq0-_y2m3gc3HH__x3Hj5ArzmaccXW35oypKGHq44azW8U4gwhOyEQIziLI0vSUTP4t52QawhcbI1Mg0gmp5vu27jvXNtQ0luat8QEb12xpW9Hc-MJZDNQ1VMyoiHMf8VVL1x1iTd-xtnSFnanpY-_HlYXbftIN7r7Rm673-NcP0iU5q0wdcPpXL8jb03yTL6Ll6_NL_rCMkCfQRSCzoiwsWBBlHFuJsS0gNhVIsIKBgdgqmWWqYImIZZbYQUsqac2QSpYIF-T6ePfbtz89hk7vXCixrk2DbR90qiRkMkvF4Lw_OnF4Z-_Q61A6bEq0zmPZads6zZkeGesDYz0CHEcHxhrgFysgbw4</recordid><startdate>20100501</startdate><enddate>20100501</enddate><creator>TAO, Peng</creator><creator>ZHANG, Chi</creator><creator>YANG, Zhi-gang</creator><creator>Hiroyuki, Takeda</creator><general>Elsevier Ltd</general><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20100501</creationdate><title>Evolution and Coarsening of Carbides in 2. 25Cr-1Mo Steel Weld Metal During High Temperature Tempering</title><author>TAO, Peng ; ZHANG, Chi ; YANG, Zhi-gang ; Hiroyuki, Takeda</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-e173t-349bcbd3d32c55d4e5db35af343d203a35d64996b0725497d5af7f4da4da64ce3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>carbide</topic><topic>Carbides</topic><topic>Chromium molybdenum steels</topic><topic>Coarsening</topic><topic>Iron and steel industry</topic><topic>Precipitates</topic><topic>Precipitation</topic><topic>Steels</topic><topic>Tempering</topic><topic>Transformations</topic><topic>weld metal</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>TAO, Peng</creatorcontrib><creatorcontrib>ZHANG, Chi</creatorcontrib><creatorcontrib>YANG, Zhi-gang</creatorcontrib><creatorcontrib>Hiroyuki, Takeda</creatorcontrib><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of iron and steel research, international</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>TAO, Peng</au><au>ZHANG, Chi</au><au>YANG, Zhi-gang</au><au>Hiroyuki, Takeda</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evolution and Coarsening of Carbides in 2. 25Cr-1Mo Steel Weld Metal During High Temperature Tempering</atitle><jtitle>Journal of iron and steel research, international</jtitle><date>2010-05-01</date><risdate>2010</risdate><volume>17</volume><issue>5</issue><spage>74</spage><epage>78</epage><pages>74-78</pages><issn>1006-706X</issn><eissn>2210-3988</eissn><abstract>Transformation and coarsening of carbides in 2. 25Cr-1Mo steel weld metal during tempering at 700 °C for different time intervals ranging from 1 to 150 h were examined by transmission electron microscopy and scanning electron microscopy. M
3 C carbides were observed in the as-welded specimens and when tempered, the precipitates were mainly composed of M
3 C, M
7 C
3, and M
23 C
6 carbides. A sequence for corresponding carbide transformation during tempering with initial precipitation of M
3 C and the subsequent precipitation of M
7 C
3 and M
23 C
6 was proposed. The precipitation of M
7 C
3 with higher chromium content was the main factor contributing to the decrease in coarsening rate of precipitates after prolonged tempering. The decrease in hardness of the tempered specimens agreed well with the prediction of the weakening of precipitation strengthening owing to the coarsening of carbides.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/S1006-706X(10)60103-3</doi><tpages>5</tpages></addata></record> |
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| ispartof | Journal of iron and steel research, international, 2010-05, Vol.17 (5), p.74-78 |
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| language | eng |
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| source | SpringerNature Journals; Access via ScienceDirect (Elsevier); Alma/SFX Local Collection |
| subjects | carbide Carbides Chromium molybdenum steels Coarsening Iron and steel industry Precipitates Precipitation Steels Tempering Transformations weld metal |
| title | Evolution and Coarsening of Carbides in 2. 25Cr-1Mo Steel Weld Metal During High Temperature Tempering |
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