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Characterization of Creep Resistance for Local Structure of Power Plant Weldment Using SP-Creep Technique
Power plant weldments are composed of various microstructures. Due to welding and PWHT processes, the microstructure of the base metal adjacent to fusion line is transformed into entirely different microstructures, collectively known as heat affected zone (HAZ). Creep, on the other hand, is consider...
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| Published in: | Key engineering materials 2006-12, Vol.326-328, p.643-648 |
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| Main Authors: | , , , , |
| Format: | Article |
| Language: | English |
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| container_end_page | 648 |
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| container_start_page | 643 |
| container_title | Key engineering materials |
| container_volume | 326-328 |
| creator | Lee, Dong Whan Yu, Hyo Sun Kwon, Il Hyun Yang, Sung Mo Baek, Seung Se |
| description | Power plant weldments are composed of various microstructures. Due to welding and
PWHT processes, the microstructure of the base metal adjacent to fusion line is transformed into
entirely different microstructures, collectively known as heat affected zone (HAZ). Creep, on the
other hand, is considered as the most important deterioration mechanism of heat resistant
components found in power plants. Therefore it is essential to evaluate creep properties of HAZ,
which is considered to be very hazardous in weldment. Recently, most of the creep tests for HAZ
are conducted using cross weld type specimen. However there are some problems with this type of
creep test due to the results being largely varied according to the volume fraction of HAZ. In this
paper, SP-Creep test, which has confirmed the availability for creep properties evaluation, has been
conducted on each of the weldment microstructures. The results showed that each microstructure
has a different creep behavior. The overall creep properties of HAZ are worse than those of the
weld metal. Among the HAZ structures, fine grained HAZ has the worst creep properties. |
| doi_str_mv | 10.4028/www.scientific.net/KEM.326-328.643 |
| format | article |
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PWHT processes, the microstructure of the base metal adjacent to fusion line is transformed into
entirely different microstructures, collectively known as heat affected zone (HAZ). Creep, on the
other hand, is considered as the most important deterioration mechanism of heat resistant
components found in power plants. Therefore it is essential to evaluate creep properties of HAZ,
which is considered to be very hazardous in weldment. Recently, most of the creep tests for HAZ
are conducted using cross weld type specimen. However there are some problems with this type of
creep test due to the results being largely varied according to the volume fraction of HAZ. In this
paper, SP-Creep test, which has confirmed the availability for creep properties evaluation, has been
conducted on each of the weldment microstructures. The results showed that each microstructure
has a different creep behavior. The overall creep properties of HAZ are worse than those of the
weld metal. Among the HAZ structures, fine grained HAZ has the worst creep properties.</description><identifier>ISSN: 1013-9826</identifier><identifier>ISSN: 1662-9795</identifier><identifier>EISSN: 1662-9795</identifier><identifier>DOI: 10.4028/www.scientific.net/KEM.326-328.643</identifier><language>eng</language><publisher>Trans Tech Publications Ltd</publisher><ispartof>Key engineering materials, 2006-12, Vol.326-328, p.643-648</ispartof><rights>2006 Trans Tech Publications Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c236t-79c8b73a910f16bd37f6c744131314371ccb6bc64112dbfbcc4bd49f73d08a573</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttps://www.scientific.net/Image/TitleCover/45?width=600</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Lee, Dong Whan</creatorcontrib><creatorcontrib>Yu, Hyo Sun</creatorcontrib><creatorcontrib>Kwon, Il Hyun</creatorcontrib><creatorcontrib>Yang, Sung Mo</creatorcontrib><creatorcontrib>Baek, Seung Se</creatorcontrib><title>Characterization of Creep Resistance for Local Structure of Power Plant Weldment Using SP-Creep Technique</title><title>Key engineering materials</title><description>Power plant weldments are composed of various microstructures. Due to welding and
PWHT processes, the microstructure of the base metal adjacent to fusion line is transformed into
entirely different microstructures, collectively known as heat affected zone (HAZ). Creep, on the
other hand, is considered as the most important deterioration mechanism of heat resistant
components found in power plants. Therefore it is essential to evaluate creep properties of HAZ,
which is considered to be very hazardous in weldment. Recently, most of the creep tests for HAZ
are conducted using cross weld type specimen. However there are some problems with this type of
creep test due to the results being largely varied according to the volume fraction of HAZ. In this
paper, SP-Creep test, which has confirmed the availability for creep properties evaluation, has been
conducted on each of the weldment microstructures. The results showed that each microstructure
has a different creep behavior. The overall creep properties of HAZ are worse than those of the
weld metal. Among the HAZ structures, fine grained HAZ has the worst creep properties.</description><issn>1013-9826</issn><issn>1662-9795</issn><issn>1662-9795</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqVkEtLxDAQgIMoqKv_IScPQmvz2LQ96vrEFRcfeAzpNNFIN1mTlEV_vZEVPMswzByGb2Y-hI5JVfKKNifr9bqMYLVL1lgonU4ntxd3JaOiYLQpBWdbaI8IQYu2bqfbua8IK9qGil20H-N7VTHSkOkesrM3FRQkHeyXStY77A2eBa1X-EFHG5NyoLHxAc89qAE_pjBCGoP-mVv4tQ54MSiX8Ise-mW-Bz9H617x46LYUJ40vDn7MeoDtGPUEPXhb52g58uLp9l1Mb-_upmdzgugTKSibqHpaqZaUhkiup7VRkDNOWE5OKsJQCc6EJwQ2nemA-Bdz1tTs75q1LRmE3S04a6Cz2tjkksbQQ_5Su3HKGnLW04zbYLONoMQfIxBG7kKdqnCpySV_LEss2X5Z1lmyzJbltlyzkZmyxlyvoGkoFxM-Vn57sfg8of_wXwDMWaRXw</recordid><startdate>20061201</startdate><enddate>20061201</enddate><creator>Lee, Dong Whan</creator><creator>Yu, Hyo Sun</creator><creator>Kwon, Il Hyun</creator><creator>Yang, Sung Mo</creator><creator>Baek, Seung Se</creator><general>Trans Tech Publications Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20061201</creationdate><title>Characterization of Creep Resistance for Local Structure of Power Plant Weldment Using SP-Creep Technique</title><author>Lee, Dong Whan ; Yu, Hyo Sun ; Kwon, Il Hyun ; Yang, Sung Mo ; Baek, Seung Se</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c236t-79c8b73a910f16bd37f6c744131314371ccb6bc64112dbfbcc4bd49f73d08a573</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lee, Dong Whan</creatorcontrib><creatorcontrib>Yu, Hyo Sun</creatorcontrib><creatorcontrib>Kwon, Il Hyun</creatorcontrib><creatorcontrib>Yang, Sung Mo</creatorcontrib><creatorcontrib>Baek, Seung Se</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Key engineering materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lee, Dong Whan</au><au>Yu, Hyo Sun</au><au>Kwon, Il Hyun</au><au>Yang, Sung Mo</au><au>Baek, Seung Se</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Characterization of Creep Resistance for Local Structure of Power Plant Weldment Using SP-Creep Technique</atitle><jtitle>Key engineering materials</jtitle><date>2006-12-01</date><risdate>2006</risdate><volume>326-328</volume><spage>643</spage><epage>648</epage><pages>643-648</pages><issn>1013-9826</issn><issn>1662-9795</issn><eissn>1662-9795</eissn><abstract>Power plant weldments are composed of various microstructures. Due to welding and
PWHT processes, the microstructure of the base metal adjacent to fusion line is transformed into
entirely different microstructures, collectively known as heat affected zone (HAZ). Creep, on the
other hand, is considered as the most important deterioration mechanism of heat resistant
components found in power plants. Therefore it is essential to evaluate creep properties of HAZ,
which is considered to be very hazardous in weldment. Recently, most of the creep tests for HAZ
are conducted using cross weld type specimen. However there are some problems with this type of
creep test due to the results being largely varied according to the volume fraction of HAZ. In this
paper, SP-Creep test, which has confirmed the availability for creep properties evaluation, has been
conducted on each of the weldment microstructures. The results showed that each microstructure
has a different creep behavior. The overall creep properties of HAZ are worse than those of the
weld metal. Among the HAZ structures, fine grained HAZ has the worst creep properties.</abstract><pub>Trans Tech Publications Ltd</pub><doi>10.4028/www.scientific.net/KEM.326-328.643</doi><tpages>6</tpages></addata></record> |
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| title | Characterization of Creep Resistance for Local Structure of Power Plant Weldment Using SP-Creep Technique |
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