Evolution of crack-tip transformation zones in superelastic Nitinol subjected to in situ fatigue: A fracture mechanics and synchrotron X-ray microdiffraction analysis
The ultrahigh spatial resolution (∼1 μm 2) of synchrotron X-ray microdiffraction is combined with fracture mechanics techniques to directly measure in situ three-dimensional strains, phases and crystallographic alignment ahead of a growing fatigue crack (100 cycles in situ) in superelastic Nitinol....
Gespeichert in:
| Veröffentlicht in: | Acta materialia 2007-10, Vol.55 (18), p.6198-6207 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 6207 |
|---|---|
| container_issue | 18 |
| container_start_page | 6198 |
| container_title | Acta materialia |
| container_volume | 55 |
| creator | Robertson, S.W. Mehta, A. Pelton, A.R. Ritchie, R.O. |
| description | The ultrahigh spatial resolution (∼1
μm
2) of synchrotron X-ray microdiffraction is combined with fracture mechanics techniques to directly measure in situ three-dimensional strains, phases and crystallographic alignment ahead of a growing fatigue crack (100
cycles
in situ) in superelastic Nitinol. The results provide some surprising insights into the growth of cracks in phase-transforming material at the microscale. Specifically, despite a macroscopic superelastic strain recovery of 6–8% associated with the phase transformation, individual austenite grains experience local strains of less than 1.5%. This observation indicates that it is the localized process of the accommodation of the transformation and subsequent loading of the martensite that provide the main source of the large recoverable strains. Furthermore, the plastic region ahead of the crack is composed of deformed martensite. This micromechanical transformation process is dependent upon the material texture, and directly influences the transformation zone size/shape as well as the crack path. |
| doi_str_mv | 10.1016/j.actamat.2007.07.028 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_31004430</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S1359645407004934</els_id><sourcerecordid>1082191626</sourcerecordid><originalsourceid>FETCH-LOGICAL-c469t-8d6778f998fdbcdbc0f07cdf694f3482c3edaecf6bdc669d4973414d13fef5f63</originalsourceid><addsrcrecordid>eNqFkVFrFDEUhQdRsFZ_gpAXxZdZk0kmk_FFSqmtUPRFwbeQvbmxWWeSNckU1h_k7zTTXfBN4UJC8p1zSE7TvGR0wyiTb3cbA8XMpmw6SofNOp161JwxNfC2Ez1_XPe8H1spevG0eZbzjlLWDYKeNb-v7uO0FB8DiY5AMvCjLX5PSjIhu5iq63r3KwbMxAeSlz0mnEwuHsgnX3yIUz3c7hAKWlLiA-TLQlxVfl_wHbkgrtqWJSGZEe5M8JCJCZbkQ4C7FEuqAd_aZA5k9pCi9e5BsOaaYKZD9vl588SZKeOL03refP1w9eXypr39fP3x8uK2BSHH0iorh0G5cVTObqEOdXQA6-QoHBeqA47WIDi5tSDlaMU4cMGEZdyh653k583ro-8-xZ8L5qJnnwGnyQSMS9acUSoEpxV880-QUdWxkclu9eyPaH1bzgmd3ic_m3SokF4L1Dt9KlCvBep1OlV1r04RJoOZ6p8E8PmveGSjUlJU7v2Rw_ox9x6TzuAxAFqfaivaRv-fpD_Zz7mC</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1082191626</pqid></control><display><type>article</type><title>Evolution of crack-tip transformation zones in superelastic Nitinol subjected to in situ fatigue: A fracture mechanics and synchrotron X-ray microdiffraction analysis</title><source>Elsevier ScienceDirect Journals Complete</source><creator>Robertson, S.W. ; Mehta, A. ; Pelton, A.R. ; Ritchie, R.O.</creator><creatorcontrib>Robertson, S.W. ; Mehta, A. ; Pelton, A.R. ; Ritchie, R.O.</creatorcontrib><description>The ultrahigh spatial resolution (∼1
μm
2) of synchrotron X-ray microdiffraction is combined with fracture mechanics techniques to directly measure in situ three-dimensional strains, phases and crystallographic alignment ahead of a growing fatigue crack (100
cycles
in situ) in superelastic Nitinol. The results provide some surprising insights into the growth of cracks in phase-transforming material at the microscale. Specifically, despite a macroscopic superelastic strain recovery of 6–8% associated with the phase transformation, individual austenite grains experience local strains of less than 1.5%. This observation indicates that it is the localized process of the accommodation of the transformation and subsequent loading of the martensite that provide the main source of the large recoverable strains. Furthermore, the plastic region ahead of the crack is composed of deformed martensite. This micromechanical transformation process is dependent upon the material texture, and directly influences the transformation zone size/shape as well as the crack path.</description><identifier>ISSN: 1359-6454</identifier><identifier>EISSN: 1873-2453</identifier><identifier>DOI: 10.1016/j.actamat.2007.07.028</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Applied sciences ; Crack growth ; Crack propagation ; Exact sciences and technology ; Fatigue ; Fatigue failure ; Fracture mechanics ; Intermetallics ; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology ; Metals. Metallurgy ; Microdiffraction ; Nitinol ; Strain ; Superelasticity ; Synchrotron X-rays ; Texture ; Transformations</subject><ispartof>Acta materialia, 2007-10, Vol.55 (18), p.6198-6207</ispartof><rights>2007 Acta Materialia Inc.</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c469t-8d6778f998fdbcdbc0f07cdf694f3482c3edaecf6bdc669d4973414d13fef5f63</citedby><cites>FETCH-LOGICAL-c469t-8d6778f998fdbcdbc0f07cdf694f3482c3edaecf6bdc669d4973414d13fef5f63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1359645407004934$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=19198864$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Robertson, S.W.</creatorcontrib><creatorcontrib>Mehta, A.</creatorcontrib><creatorcontrib>Pelton, A.R.</creatorcontrib><creatorcontrib>Ritchie, R.O.</creatorcontrib><title>Evolution of crack-tip transformation zones in superelastic Nitinol subjected to in situ fatigue: A fracture mechanics and synchrotron X-ray microdiffraction analysis</title><title>Acta materialia</title><description>The ultrahigh spatial resolution (∼1
μm
2) of synchrotron X-ray microdiffraction is combined with fracture mechanics techniques to directly measure in situ three-dimensional strains, phases and crystallographic alignment ahead of a growing fatigue crack (100
cycles
in situ) in superelastic Nitinol. The results provide some surprising insights into the growth of cracks in phase-transforming material at the microscale. Specifically, despite a macroscopic superelastic strain recovery of 6–8% associated with the phase transformation, individual austenite grains experience local strains of less than 1.5%. This observation indicates that it is the localized process of the accommodation of the transformation and subsequent loading of the martensite that provide the main source of the large recoverable strains. Furthermore, the plastic region ahead of the crack is composed of deformed martensite. This micromechanical transformation process is dependent upon the material texture, and directly influences the transformation zone size/shape as well as the crack path.</description><subject>Applied sciences</subject><subject>Crack growth</subject><subject>Crack propagation</subject><subject>Exact sciences and technology</subject><subject>Fatigue</subject><subject>Fatigue failure</subject><subject>Fracture mechanics</subject><subject>Intermetallics</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metals. Metallurgy</subject><subject>Microdiffraction</subject><subject>Nitinol</subject><subject>Strain</subject><subject>Superelasticity</subject><subject>Synchrotron X-rays</subject><subject>Texture</subject><subject>Transformations</subject><issn>1359-6454</issn><issn>1873-2453</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNqFkVFrFDEUhQdRsFZ_gpAXxZdZk0kmk_FFSqmtUPRFwbeQvbmxWWeSNckU1h_k7zTTXfBN4UJC8p1zSE7TvGR0wyiTb3cbA8XMpmw6SofNOp161JwxNfC2Ez1_XPe8H1spevG0eZbzjlLWDYKeNb-v7uO0FB8DiY5AMvCjLX5PSjIhu5iq63r3KwbMxAeSlz0mnEwuHsgnX3yIUz3c7hAKWlLiA-TLQlxVfl_wHbkgrtqWJSGZEe5M8JCJCZbkQ4C7FEuqAd_aZA5k9pCi9e5BsOaaYKZD9vl588SZKeOL03refP1w9eXypr39fP3x8uK2BSHH0iorh0G5cVTObqEOdXQA6-QoHBeqA47WIDi5tSDlaMU4cMGEZdyh653k583ro-8-xZ8L5qJnnwGnyQSMS9acUSoEpxV880-QUdWxkclu9eyPaH1bzgmd3ic_m3SokF4L1Dt9KlCvBep1OlV1r04RJoOZ6p8E8PmveGSjUlJU7v2Rw_ox9x6TzuAxAFqfaivaRv-fpD_Zz7mC</recordid><startdate>20071001</startdate><enddate>20071001</enddate><creator>Robertson, S.W.</creator><creator>Mehta, A.</creator><creator>Pelton, A.R.</creator><creator>Ritchie, R.O.</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20071001</creationdate><title>Evolution of crack-tip transformation zones in superelastic Nitinol subjected to in situ fatigue: A fracture mechanics and synchrotron X-ray microdiffraction analysis</title><author>Robertson, S.W. ; Mehta, A. ; Pelton, A.R. ; Ritchie, R.O.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c469t-8d6778f998fdbcdbc0f07cdf694f3482c3edaecf6bdc669d4973414d13fef5f63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Applied sciences</topic><topic>Crack growth</topic><topic>Crack propagation</topic><topic>Exact sciences and technology</topic><topic>Fatigue</topic><topic>Fatigue failure</topic><topic>Fracture mechanics</topic><topic>Intermetallics</topic><topic>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</topic><topic>Metals. Metallurgy</topic><topic>Microdiffraction</topic><topic>Nitinol</topic><topic>Strain</topic><topic>Superelasticity</topic><topic>Synchrotron X-rays</topic><topic>Texture</topic><topic>Transformations</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Robertson, S.W.</creatorcontrib><creatorcontrib>Mehta, A.</creatorcontrib><creatorcontrib>Pelton, A.R.</creatorcontrib><creatorcontrib>Ritchie, R.O.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Acta materialia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Robertson, S.W.</au><au>Mehta, A.</au><au>Pelton, A.R.</au><au>Ritchie, R.O.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evolution of crack-tip transformation zones in superelastic Nitinol subjected to in situ fatigue: A fracture mechanics and synchrotron X-ray microdiffraction analysis</atitle><jtitle>Acta materialia</jtitle><date>2007-10-01</date><risdate>2007</risdate><volume>55</volume><issue>18</issue><spage>6198</spage><epage>6207</epage><pages>6198-6207</pages><issn>1359-6454</issn><eissn>1873-2453</eissn><abstract>The ultrahigh spatial resolution (∼1
μm
2) of synchrotron X-ray microdiffraction is combined with fracture mechanics techniques to directly measure in situ three-dimensional strains, phases and crystallographic alignment ahead of a growing fatigue crack (100
cycles
in situ) in superelastic Nitinol. The results provide some surprising insights into the growth of cracks in phase-transforming material at the microscale. Specifically, despite a macroscopic superelastic strain recovery of 6–8% associated with the phase transformation, individual austenite grains experience local strains of less than 1.5%. This observation indicates that it is the localized process of the accommodation of the transformation and subsequent loading of the martensite that provide the main source of the large recoverable strains. Furthermore, the plastic region ahead of the crack is composed of deformed martensite. This micromechanical transformation process is dependent upon the material texture, and directly influences the transformation zone size/shape as well as the crack path.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.actamat.2007.07.028</doi><tpages>10</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1359-6454 |
| ispartof | Acta materialia, 2007-10, Vol.55 (18), p.6198-6207 |
| issn | 1359-6454 1873-2453 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_31004430 |
| source | Elsevier ScienceDirect Journals Complete |
| subjects | Applied sciences Crack growth Crack propagation Exact sciences and technology Fatigue Fatigue failure Fracture mechanics Intermetallics Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Microdiffraction Nitinol Strain Superelasticity Synchrotron X-rays Texture Transformations |
| title | Evolution of crack-tip transformation zones in superelastic Nitinol subjected to in situ fatigue: A fracture mechanics and synchrotron X-ray microdiffraction analysis |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-21T17%3A07%3A11IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Evolution%20of%20crack-tip%20transformation%20zones%20in%20superelastic%20Nitinol%20subjected%20to%20in%20situ%20fatigue:%20A%20fracture%20mechanics%20and%20synchrotron%20X-ray%20microdiffraction%20analysis&rft.jtitle=Acta%20materialia&rft.au=Robertson,%20S.W.&rft.date=2007-10-01&rft.volume=55&rft.issue=18&rft.spage=6198&rft.epage=6207&rft.pages=6198-6207&rft.issn=1359-6454&rft.eissn=1873-2453&rft_id=info:doi/10.1016/j.actamat.2007.07.028&rft_dat=%3Cproquest_cross%3E1082191626%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1082191626&rft_id=info:pmid/&rft_els_id=S1359645407004934&rfr_iscdi=true |