The thermal crack characteristics of rolled tungsten in different orientations
•The thermal cracks of tungsten in different orientation were investigated.•The rolled tungsten bulk exhibited anisotropic bending strength.•Type B sample showed higher cracking threshold than that of type A sample.•Primary cracks appeared with linear profile for type A while circular for type B.•Fo...
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| Veröffentlicht in: | Journal of nuclear materials 2014-01, Vol.444 (1-3), p.428-434 |
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| container_title | Journal of nuclear materials |
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| creator | Zhang, Xiaoxin Yan, Qingzhi |
| description | •The thermal cracks of tungsten in different orientation were investigated.•The rolled tungsten bulk exhibited anisotropic bending strength.•Type B sample showed higher cracking threshold than that of type A sample.•Primary cracks appeared with linear profile for type A while circular for type B.•For both type samples, dominant intergranular cracks were observed by EBSD.
Thermal shock resistance of rolled tungsten with elongated grains aligned parallel and perpendicular to the loading direction was examined. Parallel (type A) or perpendicular (type B) grain orientations influences crack characteristics including threshold, profile, pattern and parameter. Type B samples show a cracking threshold of 0.44–0.66GW/m2, which is much higher than type A samples ( |
| doi_str_mv | 10.1016/j.jnucmat.2013.10.013 |
| format | Article |
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Thermal shock resistance of rolled tungsten with elongated grains aligned parallel and perpendicular to the loading direction was examined. Parallel (type A) or perpendicular (type B) grain orientations influences crack characteristics including threshold, profile, pattern and parameter. Type B samples show a cracking threshold of 0.44–0.66GW/m2, which is much higher than type A samples (<0.22GW/m2). For type A samples, primary cracks appear with linear profiles and dense secondary cracks along grain boundaries. Type B samples exhibit circular primary crack profiles as the homogeneous bending strength on the loaded surface and no secondary cracks are observed. Type A samples exhibit deeper cracking (550–850μm) than type B samples (350–550μm). The maximum crack widths were 2–8μm for type A, again larger than those of type B (0–8μm). Thermal fatigue tests were performed on type B samples, and cracks were detected after 1000cycles.</description><identifier>ISSN: 0022-3115</identifier><identifier>EISSN: 1873-4820</identifier><identifier>DOI: 10.1016/j.jnucmat.2013.10.013</identifier><identifier>CODEN: JNUMAM</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Cracks ; Cross-disciplinary physics: materials science; rheology ; Elongation ; Exact sciences and technology ; Fatigue cracking ; Fatigue, embrittlement, and fracture ; Fracture mechanics ; Grain boundaries ; Materials science ; Other heat and thermomechanical treatments ; Physics ; Thresholds ; Treatment of materials and its effects on microstructure and properties ; Tungsten ; Yield strength</subject><ispartof>Journal of nuclear materials, 2014-01, Vol.444 (1-3), p.428-434</ispartof><rights>2013 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c405t-e0980a693ba2eac1e2006053928712cf18ccc25caa1da003b66d9b396bd95dbc3</citedby><cites>FETCH-LOGICAL-c405t-e0980a693ba2eac1e2006053928712cf18ccc25caa1da003b66d9b396bd95dbc3</cites><orcidid>0000-0001-7449-9404</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jnucmat.2013.10.013$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,4025,27925,27926,27927,45997</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28032150$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhang, Xiaoxin</creatorcontrib><creatorcontrib>Yan, Qingzhi</creatorcontrib><title>The thermal crack characteristics of rolled tungsten in different orientations</title><title>Journal of nuclear materials</title><description>•The thermal cracks of tungsten in different orientation were investigated.•The rolled tungsten bulk exhibited anisotropic bending strength.•Type B sample showed higher cracking threshold than that of type A sample.•Primary cracks appeared with linear profile for type A while circular for type B.•For both type samples, dominant intergranular cracks were observed by EBSD.
Thermal shock resistance of rolled tungsten with elongated grains aligned parallel and perpendicular to the loading direction was examined. Parallel (type A) or perpendicular (type B) grain orientations influences crack characteristics including threshold, profile, pattern and parameter. Type B samples show a cracking threshold of 0.44–0.66GW/m2, which is much higher than type A samples (<0.22GW/m2). For type A samples, primary cracks appear with linear profiles and dense secondary cracks along grain boundaries. Type B samples exhibit circular primary crack profiles as the homogeneous bending strength on the loaded surface and no secondary cracks are observed. Type A samples exhibit deeper cracking (550–850μm) than type B samples (350–550μm). The maximum crack widths were 2–8μm for type A, again larger than those of type B (0–8μm). Thermal fatigue tests were performed on type B samples, and cracks were detected after 1000cycles.</description><subject>Cracks</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Elongation</subject><subject>Exact sciences and technology</subject><subject>Fatigue cracking</subject><subject>Fatigue, embrittlement, and fracture</subject><subject>Fracture mechanics</subject><subject>Grain boundaries</subject><subject>Materials science</subject><subject>Other heat and thermomechanical treatments</subject><subject>Physics</subject><subject>Thresholds</subject><subject>Treatment of materials and its effects on microstructure and properties</subject><subject>Tungsten</subject><subject>Yield strength</subject><issn>0022-3115</issn><issn>1873-4820</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNkMFqGzEQQEVpoa6bTwjoEuhl3ZFkrXdPIZi0KZj24p7F7OxsrM1615HkQP4-Mja9pqcHw5sZeEJcK1goUOX3ftGPR9pjWmhQJs8WGR_ETFUrUywrDR_FDEDrwihlP4svMfYAYGuwM_F7u2OZdhz2OEgKSE-SdpiZOPiYPEU5dTJMw8CtTMfxMSYepR9l67uOA49JTsFnYPLTGL-KTx0Oka8unIu_P-6364di8-fnr_XdpqAl2FQw1BVgWZsGNSMp1gAlWFPraqU0daoiIm0JUbUIYJqybOvG1GXT1rZtyMzFt_PdQ5iejxyT2_tIPAw48nSMTpUrZeulLvV_qsquTFbtWaUwxRi4c4fg9xhenQJ3Su16d0ntTqlP44y8d3N5gZFw6AKO5OO_ZV2B0cpC9m7PHuc0L56Di5TbEbc-MCXXTv6dT2_RVJd3</recordid><startdate>201401</startdate><enddate>201401</enddate><creator>Zhang, Xiaoxin</creator><creator>Yan, Qingzhi</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</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><orcidid>https://orcid.org/0000-0001-7449-9404</orcidid></search><sort><creationdate>201401</creationdate><title>The thermal crack characteristics of rolled tungsten in different orientations</title><author>Zhang, Xiaoxin ; Yan, Qingzhi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c405t-e0980a693ba2eac1e2006053928712cf18ccc25caa1da003b66d9b396bd95dbc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Cracks</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Elongation</topic><topic>Exact sciences and technology</topic><topic>Fatigue cracking</topic><topic>Fatigue, embrittlement, and fracture</topic><topic>Fracture mechanics</topic><topic>Grain boundaries</topic><topic>Materials science</topic><topic>Other heat and thermomechanical treatments</topic><topic>Physics</topic><topic>Thresholds</topic><topic>Treatment of materials and its effects on microstructure and properties</topic><topic>Tungsten</topic><topic>Yield strength</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Xiaoxin</creatorcontrib><creatorcontrib>Yan, Qingzhi</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</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>Zhang, Xiaoxin</au><au>Yan, Qingzhi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The thermal crack characteristics of rolled tungsten in different orientations</atitle><jtitle>Journal of nuclear materials</jtitle><date>2014-01</date><risdate>2014</risdate><volume>444</volume><issue>1-3</issue><spage>428</spage><epage>434</epage><pages>428-434</pages><issn>0022-3115</issn><eissn>1873-4820</eissn><coden>JNUMAM</coden><abstract>•The thermal cracks of tungsten in different orientation were investigated.•The rolled tungsten bulk exhibited anisotropic bending strength.•Type B sample showed higher cracking threshold than that of type A sample.•Primary cracks appeared with linear profile for type A while circular for type B.•For both type samples, dominant intergranular cracks were observed by EBSD.
Thermal shock resistance of rolled tungsten with elongated grains aligned parallel and perpendicular to the loading direction was examined. Parallel (type A) or perpendicular (type B) grain orientations influences crack characteristics including threshold, profile, pattern and parameter. Type B samples show a cracking threshold of 0.44–0.66GW/m2, which is much higher than type A samples (<0.22GW/m2). For type A samples, primary cracks appear with linear profiles and dense secondary cracks along grain boundaries. Type B samples exhibit circular primary crack profiles as the homogeneous bending strength on the loaded surface and no secondary cracks are observed. Type A samples exhibit deeper cracking (550–850μm) than type B samples (350–550μm). The maximum crack widths were 2–8μm for type A, again larger than those of type B (0–8μm). Thermal fatigue tests were performed on type B samples, and cracks were detected after 1000cycles.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jnucmat.2013.10.013</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0001-7449-9404</orcidid></addata></record> |
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| subjects | Cracks Cross-disciplinary physics: materials science rheology Elongation Exact sciences and technology Fatigue cracking Fatigue, embrittlement, and fracture Fracture mechanics Grain boundaries Materials science Other heat and thermomechanical treatments Physics Thresholds Treatment of materials and its effects on microstructure and properties Tungsten Yield strength |
| title | The thermal crack characteristics of rolled tungsten in different orientations |
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