Evaluation of toughness deterioration by an electrochemical method in an isothermally-aged N-containing austenitic stainless steel
This work presents the results of an evaluation of the deterioration of cryogenic toughness by means of an electrochemical method in a N-containing austenitic stainless steel (JK2) aged at temperatures of 700, 800 and 900 °C for times from 10 to 1000 min. The aging process at 700 and 800 °C caused t...
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| Veröffentlicht in: | Materials characterization 2009-02, Vol.60 (2), p.119-124 |
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| creator | Saucedo-Muñoz, Maribel L. Lopez-Hirata, Victor M. Avila-Davila, Erika O. Melo-Maximo, Dulce V. |
| description | This work presents the results of an evaluation of the deterioration of cryogenic toughness by means of an electrochemical method in a N-containing austenitic stainless steel (JK2) aged at temperatures of 700, 800 and 900 °C for times from 10 to 1000 min. The aging process at 700 and 800 °C caused the decrease in the Charpy V-Notch impact energy at −
196 °C because of the intergranular precipitation of carbides. Scanning electron micrographs of the Charpy V-Notch test specimens showed the presence of intergranular brittle fracture. The degree of sensitization was determined by the ratio of the maximum current density generated by the reactivation scan to that of the anodic scan,
I
r/
I
a, using the double-loop electrochemical potentiokinetic reactivation test. The Charpy V-Notch impact energy decreased with increase in the
I
r/
I
a ratio. This relation permits an estimate of the deterioration of cryogenic toughness due to thermal aging in this type of steel. |
| doi_str_mv | 10.1016/j.matchar.2008.07.007 |
| format | Article |
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196 °C because of the intergranular precipitation of carbides. Scanning electron micrographs of the Charpy V-Notch test specimens showed the presence of intergranular brittle fracture. The degree of sensitization was determined by the ratio of the maximum current density generated by the reactivation scan to that of the anodic scan,
I
r/
I
a, using the double-loop electrochemical potentiokinetic reactivation test. The Charpy V-Notch impact energy decreased with increase in the
I
r/
I
a ratio. This relation permits an estimate of the deterioration of cryogenic toughness due to thermal aging in this type of steel.</description><identifier>ISSN: 1044-5803</identifier><identifier>EISSN: 1873-4189</identifier><identifier>DOI: 10.1016/j.matchar.2008.07.007</identifier><language>eng</language><publisher>New York, NY: Elsevier Inc</publisher><subject>AGING ; Applied sciences ; Austenitic stainless steels ; AUSTENITIC STEELS ; CARBIDES ; Cross-disciplinary physics: materials science; rheology ; CURRENT DENSITY ; Electrochemical methods ; ELECTROCHEMISTRY ; Exact sciences and technology ; FRACTURES ; Isothermal aging ; MATERIALS SCIENCE ; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology ; Metals. Metallurgy ; Phase diagrams and microstructures developed by solidification and solid-solid phase transformations ; Physics ; PRECIPITATION ; Solidification ; TEMPERATURE RANGE 0065-0273 K ; TEMPERATURE RANGE 0400-1000 K ; TEMPERATURE RANGE 1000-4000 K ; Toughness</subject><ispartof>Materials characterization, 2009-02, Vol.60 (2), p.119-124</ispartof><rights>2008 Elsevier Inc.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c367t-540b568775fd1f4210380e842e53fd0b2a2834493ce20a319a77c1bfd631be403</citedby><cites>FETCH-LOGICAL-c367t-540b568775fd1f4210380e842e53fd0b2a2834493ce20a319a77c1bfd631be403</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.matchar.2008.07.007$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,777,781,882,3537,27905,27906,45976</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21149325$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/21192596$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Saucedo-Muñoz, Maribel L.</creatorcontrib><creatorcontrib>Lopez-Hirata, Victor M.</creatorcontrib><creatorcontrib>Avila-Davila, Erika O.</creatorcontrib><creatorcontrib>Melo-Maximo, Dulce V.</creatorcontrib><title>Evaluation of toughness deterioration by an electrochemical method in an isothermally-aged N-containing austenitic stainless steel</title><title>Materials characterization</title><description>This work presents the results of an evaluation of the deterioration of cryogenic toughness by means of an electrochemical method in a N-containing austenitic stainless steel (JK2) aged at temperatures of 700, 800 and 900 °C for times from 10 to 1000 min. The aging process at 700 and 800 °C caused the decrease in the Charpy V-Notch impact energy at −
196 °C because of the intergranular precipitation of carbides. Scanning electron micrographs of the Charpy V-Notch test specimens showed the presence of intergranular brittle fracture. The degree of sensitization was determined by the ratio of the maximum current density generated by the reactivation scan to that of the anodic scan,
I
r/
I
a, using the double-loop electrochemical potentiokinetic reactivation test. The Charpy V-Notch impact energy decreased with increase in the
I
r/
I
a ratio. This relation permits an estimate of the deterioration of cryogenic toughness due to thermal aging in this type of steel.</description><subject>AGING</subject><subject>Applied sciences</subject><subject>Austenitic stainless steels</subject><subject>AUSTENITIC STEELS</subject><subject>CARBIDES</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>CURRENT DENSITY</subject><subject>Electrochemical methods</subject><subject>ELECTROCHEMISTRY</subject><subject>Exact sciences and technology</subject><subject>FRACTURES</subject><subject>Isothermal aging</subject><subject>MATERIALS SCIENCE</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metals. Metallurgy</subject><subject>Phase diagrams and microstructures developed by solidification and solid-solid phase transformations</subject><subject>Physics</subject><subject>PRECIPITATION</subject><subject>Solidification</subject><subject>TEMPERATURE RANGE 0065-0273 K</subject><subject>TEMPERATURE RANGE 0400-1000 K</subject><subject>TEMPERATURE RANGE 1000-4000 K</subject><subject>Toughness</subject><issn>1044-5803</issn><issn>1873-4189</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFkM1q3TAQhU1poGmSRwgISpd2Rj-25FUpIWkLId20ayHL42tdbClIuoG77ZNXxqHbriRmzpk581XVLYWGAu3ujs1qsp1NbBiAakA2APJddUmV5LWgqn9f_iBE3SrgH6qPKR0BoFNUXlZ_Hl7NcjLZBU_CRHI4HWaPKZERM0YX4t4azsR4ggvaHIOdcXXWLGTFPIeROL81XQp5xriaZTnX5oAjea5t8Nk47_yBmFPK6F12lqSttmxLSgmX6-piMkvCm7f3qvr9-PDr_nv99PPbj_uvT7Xlncx1K2BoOyVlO410EowCV4BKMGz5NMLADFNciJ5bZGA47Y2Ulg7T2HE6oAB-VX3a54aUnU7WZbRzSejLUZpR2rO274qq3VU2hpQiTvolutXEs6agN9z6qN9w6w23BqkL7uL7vPteTCpspmi8demfucwv0VhbdF92HZZTXx3GLQl6i6OLW5AxuP9s-gueCZrP</recordid><startdate>20090201</startdate><enddate>20090201</enddate><creator>Saucedo-Muñoz, Maribel L.</creator><creator>Lopez-Hirata, Victor M.</creator><creator>Avila-Davila, Erika O.</creator><creator>Melo-Maximo, Dulce V.</creator><general>Elsevier Inc</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20090201</creationdate><title>Evaluation of toughness deterioration by an electrochemical method in an isothermally-aged N-containing austenitic stainless steel</title><author>Saucedo-Muñoz, Maribel L. ; Lopez-Hirata, Victor M. ; Avila-Davila, Erika O. ; Melo-Maximo, Dulce V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c367t-540b568775fd1f4210380e842e53fd0b2a2834493ce20a319a77c1bfd631be403</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>AGING</topic><topic>Applied sciences</topic><topic>Austenitic stainless steels</topic><topic>AUSTENITIC STEELS</topic><topic>CARBIDES</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>CURRENT DENSITY</topic><topic>Electrochemical methods</topic><topic>ELECTROCHEMISTRY</topic><topic>Exact sciences and technology</topic><topic>FRACTURES</topic><topic>Isothermal aging</topic><topic>MATERIALS SCIENCE</topic><topic>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</topic><topic>Metals. Metallurgy</topic><topic>Phase diagrams and microstructures developed by solidification and solid-solid phase transformations</topic><topic>Physics</topic><topic>PRECIPITATION</topic><topic>Solidification</topic><topic>TEMPERATURE RANGE 0065-0273 K</topic><topic>TEMPERATURE RANGE 0400-1000 K</topic><topic>TEMPERATURE RANGE 1000-4000 K</topic><topic>Toughness</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Saucedo-Muñoz, Maribel L.</creatorcontrib><creatorcontrib>Lopez-Hirata, Victor M.</creatorcontrib><creatorcontrib>Avila-Davila, Erika O.</creatorcontrib><creatorcontrib>Melo-Maximo, Dulce V.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Materials characterization</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Saucedo-Muñoz, Maribel L.</au><au>Lopez-Hirata, Victor M.</au><au>Avila-Davila, Erika O.</au><au>Melo-Maximo, Dulce V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluation of toughness deterioration by an electrochemical method in an isothermally-aged N-containing austenitic stainless steel</atitle><jtitle>Materials characterization</jtitle><date>2009-02-01</date><risdate>2009</risdate><volume>60</volume><issue>2</issue><spage>119</spage><epage>124</epage><pages>119-124</pages><issn>1044-5803</issn><eissn>1873-4189</eissn><abstract>This work presents the results of an evaluation of the deterioration of cryogenic toughness by means of an electrochemical method in a N-containing austenitic stainless steel (JK2) aged at temperatures of 700, 800 and 900 °C for times from 10 to 1000 min. The aging process at 700 and 800 °C caused the decrease in the Charpy V-Notch impact energy at −
196 °C because of the intergranular precipitation of carbides. Scanning electron micrographs of the Charpy V-Notch test specimens showed the presence of intergranular brittle fracture. The degree of sensitization was determined by the ratio of the maximum current density generated by the reactivation scan to that of the anodic scan,
I
r/
I
a, using the double-loop electrochemical potentiokinetic reactivation test. The Charpy V-Notch impact energy decreased with increase in the
I
r/
I
a ratio. This relation permits an estimate of the deterioration of cryogenic toughness due to thermal aging in this type of steel.</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><doi>10.1016/j.matchar.2008.07.007</doi><tpages>6</tpages></addata></record> |
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| ispartof | Materials characterization, 2009-02, Vol.60 (2), p.119-124 |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | AGING Applied sciences Austenitic stainless steels AUSTENITIC STEELS CARBIDES Cross-disciplinary physics: materials science rheology CURRENT DENSITY Electrochemical methods ELECTROCHEMISTRY Exact sciences and technology FRACTURES Isothermal aging MATERIALS SCIENCE Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics PRECIPITATION Solidification TEMPERATURE RANGE 0065-0273 K TEMPERATURE RANGE 0400-1000 K TEMPERATURE RANGE 1000-4000 K Toughness |
| title | Evaluation of toughness deterioration by an electrochemical method in an isothermally-aged N-containing austenitic stainless steel |
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