Parameter correlation of high-temperature creep constitutive equation for RPV metallic materials
Constant-temperature and constant-load creep tests of SA-508 stainless steel were performed at six temperatures, and the creep behavior and properties of this material were determined. Constitutive models were established based on an isothermal creep method to describe the high-temperature creep beh...
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| Veröffentlicht in: | Journal of nuclear materials 2015-10, Vol.465, p.196-203 |
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| creator | Xie, Lin-Jun Ren, Xin Shen, Ming-Xue Tu, Li-Qun |
| description | Constant-temperature and constant-load creep tests of SA-508 stainless steel were performed at six temperatures, and the creep behavior and properties of this material were determined. Constitutive models were established based on an isothermal creep method to describe the high-temperature creep behavior of SA-508. Material parameter k, stress exponent nσ, and temperature exponent nt of the established constitutive models were determined through experimental data via numerical optimization techniques. The relationship of k, nσ, and nt was evaluated, and a new coefficient model of k–T, nσ–T, nt–T, and nt–nσ was formulated through the parameters of the isothermal creep equation. Moreover, the isothermal creep equation for this material at every temperature point from 450 °C to 1000 °C was obtained from the models. This method can serve as a reference for isothermal creep analysis and provide a way for the safety assessment of components of reactor pressure vessels. |
| doi_str_mv | 10.1016/j.jnucmat.2015.05.032 |
| format | Article |
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Constitutive models were established based on an isothermal creep method to describe the high-temperature creep behavior of SA-508. Material parameter k, stress exponent nσ, and temperature exponent nt of the established constitutive models were determined through experimental data via numerical optimization techniques. The relationship of k, nσ, and nt was evaluated, and a new coefficient model of k–T, nσ–T, nt–T, and nt–nσ was formulated through the parameters of the isothermal creep equation. Moreover, the isothermal creep equation for this material at every temperature point from 450 °C to 1000 °C was obtained from the models. This method can serve as a reference for isothermal creep analysis and provide a way for the safety assessment of components of reactor pressure vessels.</description><identifier>ISSN: 0022-3115</identifier><identifier>EISSN: 1873-4820</identifier><identifier>DOI: 10.1016/j.jnucmat.2015.05.032</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Coefficient model ; Constitutive equation ; Constitutive relationships ; Creep ; Creep (materials) ; Creep tests ; Data fitting ; Exponents ; Mathematical analysis ; Mathematical models ; Nuclear engineering ; Nuclear reactor components ; RPV metallic material</subject><ispartof>Journal of nuclear materials, 2015-10, Vol.465, p.196-203</ispartof><rights>2015 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c375t-4d1903f0e81c4ece1b33ff2c5a376554dc51f77e989b252997001082ee0cafb3</citedby><cites>FETCH-LOGICAL-c375t-4d1903f0e81c4ece1b33ff2c5a376554dc51f77e989b252997001082ee0cafb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0022311515003074$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids></links><search><creatorcontrib>Xie, Lin-Jun</creatorcontrib><creatorcontrib>Ren, Xin</creatorcontrib><creatorcontrib>Shen, Ming-Xue</creatorcontrib><creatorcontrib>Tu, Li-Qun</creatorcontrib><title>Parameter correlation of high-temperature creep constitutive equation for RPV metallic materials</title><title>Journal of nuclear materials</title><description>Constant-temperature and constant-load creep tests of SA-508 stainless steel were performed at six temperatures, and the creep behavior and properties of this material were determined. Constitutive models were established based on an isothermal creep method to describe the high-temperature creep behavior of SA-508. Material parameter k, stress exponent nσ, and temperature exponent nt of the established constitutive models were determined through experimental data via numerical optimization techniques. The relationship of k, nσ, and nt was evaluated, and a new coefficient model of k–T, nσ–T, nt–T, and nt–nσ was formulated through the parameters of the isothermal creep equation. Moreover, the isothermal creep equation for this material at every temperature point from 450 °C to 1000 °C was obtained from the models. This method can serve as a reference for isothermal creep analysis and provide a way for the safety assessment of components of reactor pressure vessels.</description><subject>Coefficient model</subject><subject>Constitutive equation</subject><subject>Constitutive relationships</subject><subject>Creep</subject><subject>Creep (materials)</subject><subject>Creep tests</subject><subject>Data fitting</subject><subject>Exponents</subject><subject>Mathematical analysis</subject><subject>Mathematical models</subject><subject>Nuclear engineering</subject><subject>Nuclear reactor components</subject><subject>RPV metallic material</subject><issn>0022-3115</issn><issn>1873-4820</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqNkEtLAzEUhYMoWKs_QZilmxlvksk8ViLFFxQsUtzGNL2xKfNqkin4701p9woHzuY7h3sPIbcUMgq0uN9m227UrQoZAyoyiOLsjExoVfI0rxickwkAYymnVFySK--3ACBqEBPytVBOtRjQJbp3DhsVbN8lvUk29nuTBmwHdCqMDhPtEIdIdT7YMAa7xwR345E3vUs-Fp9JbFJNY3USr0FnVeOvyYWJhjcnn5Ll89Ny9prO31_eZo_zVPNShDRf0xq4AayozlEjXXFuDNNC8bIQIl9rQU1ZYl3VKyZYXZcAFCqGCFqZFZ-Su2Pt4PrdiD7I1nqNTaM67EcvacVEXhSsqv-BQlWURV2UERVHVLvee4dGDs62yv1ICvKwvdzK0_bysL2EKM5i7uGYw_jx3qKTXlvsNK6tQx3kurd_NPwCdWyRQg</recordid><startdate>20151001</startdate><enddate>20151001</enddate><creator>Xie, Lin-Jun</creator><creator>Ren, Xin</creator><creator>Shen, Ming-Xue</creator><creator>Tu, Li-Qun</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7QQ</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20151001</creationdate><title>Parameter correlation of high-temperature creep constitutive equation for RPV metallic materials</title><author>Xie, Lin-Jun ; Ren, Xin ; Shen, Ming-Xue ; Tu, Li-Qun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c375t-4d1903f0e81c4ece1b33ff2c5a376554dc51f77e989b252997001082ee0cafb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Coefficient model</topic><topic>Constitutive equation</topic><topic>Constitutive relationships</topic><topic>Creep</topic><topic>Creep (materials)</topic><topic>Creep tests</topic><topic>Data fitting</topic><topic>Exponents</topic><topic>Mathematical analysis</topic><topic>Mathematical models</topic><topic>Nuclear engineering</topic><topic>Nuclear reactor components</topic><topic>RPV metallic material</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xie, Lin-Jun</creatorcontrib><creatorcontrib>Ren, Xin</creatorcontrib><creatorcontrib>Shen, Ming-Xue</creatorcontrib><creatorcontrib>Tu, Li-Qun</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of nuclear materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xie, Lin-Jun</au><au>Ren, Xin</au><au>Shen, Ming-Xue</au><au>Tu, Li-Qun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Parameter correlation of high-temperature creep constitutive equation for RPV metallic materials</atitle><jtitle>Journal of nuclear materials</jtitle><date>2015-10-01</date><risdate>2015</risdate><volume>465</volume><spage>196</spage><epage>203</epage><pages>196-203</pages><issn>0022-3115</issn><eissn>1873-4820</eissn><abstract>Constant-temperature and constant-load creep tests of SA-508 stainless steel were performed at six temperatures, and the creep behavior and properties of this material were determined. Constitutive models were established based on an isothermal creep method to describe the high-temperature creep behavior of SA-508. Material parameter k, stress exponent nσ, and temperature exponent nt of the established constitutive models were determined through experimental data via numerical optimization techniques. The relationship of k, nσ, and nt was evaluated, and a new coefficient model of k–T, nσ–T, nt–T, and nt–nσ was formulated through the parameters of the isothermal creep equation. Moreover, the isothermal creep equation for this material at every temperature point from 450 °C to 1000 °C was obtained from the models. This method can serve as a reference for isothermal creep analysis and provide a way for the safety assessment of components of reactor pressure vessels.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.jnucmat.2015.05.032</doi><tpages>8</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Coefficient model Constitutive equation Constitutive relationships Creep Creep (materials) Creep tests Data fitting Exponents Mathematical analysis Mathematical models Nuclear engineering Nuclear reactor components RPV metallic material |
| title | Parameter correlation of high-temperature creep constitutive equation for RPV metallic materials |
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