Small-angle neutron scattering from fatigued copper single crystals
Copper single crystals oriented for single and multiple slip were studied by small-angle neutron scattering (SANS) after fatigue tests at a constant plastic shear strain amplitude y γ pl = 0.15% . For the SANS measurements, a special sample holder was used in order to obtain more reliable informatio...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 1991-01, Vol.131 (2), p.171-176 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Lepistö, T.K. Kostorz, G. Kuokkala, V.-T. Kettunen, P. |
| description | Copper single crystals oriented for single and multiple slip were studied by small-angle neutron scattering (SANS) after fatigue tests at a constant plastic shear strain amplitude
y
γ
pl
= 0.15%
. For the SANS measurements, a special sample holder was used in order to obtain more reliable information about the small differences in the neutron scattering from individual samples. The size of the voids in the samples oriented for single slip increased as a function of the number of fatigue cycles, varying from 0.74 nm to 0.91 nm, but the volume fraction remained more or less constant. The dislocation density observed by SANS was found to increase from 6 × 10
7 mm
−2 at
τ
max/2 to 4 × 10
8 mm
−2 at
τ
max, but remained constant in the saturation stage of cyclic strain hardening. The SANS results obtained are in good agreement with positron annihilation data and transmission electron microscopy observations from the same specimens. |
| doi_str_mv | 10.1016/0921-5093(91)90393-2 |
| format | Article |
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y
γ
pl
= 0.15%
. For the SANS measurements, a special sample holder was used in order to obtain more reliable information about the small differences in the neutron scattering from individual samples. The size of the voids in the samples oriented for single slip increased as a function of the number of fatigue cycles, varying from 0.74 nm to 0.91 nm, but the volume fraction remained more or less constant. The dislocation density observed by SANS was found to increase from 6 × 10
7 mm
−2 at
τ
max/2 to 4 × 10
8 mm
−2 at
τ
max, but remained constant in the saturation stage of cyclic strain hardening. The SANS results obtained are in good agreement with positron annihilation data and transmission electron microscopy observations from the same specimens.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/0921-5093(91)90393-2</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Condensed matter: structure, mechanical and thermal properties ; Exact sciences and technology ; Fatigue, brittleness, fracture, and cracks ; Mechanical and acoustical properties of condensed matter ; Mechanical properties of solids ; Metals. Metallurgy ; Physics</subject><ispartof>Materials science & engineering. A, Structural materials : properties, microstructure and processing, 1991-01, Vol.131 (2), p.171-176</ispartof><rights>1991</rights><rights>1991 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c365t-162a5a1fc7a2ca8380dbc2fd043676b4ad0a8ca764a69f96adfe6648a9ea2bbf3</citedby><cites>FETCH-LOGICAL-c365t-162a5a1fc7a2ca8380dbc2fd043676b4ad0a8ca764a69f96adfe6648a9ea2bbf3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/0921509391903932$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=19471840$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Lepistö, T.K.</creatorcontrib><creatorcontrib>Kostorz, G.</creatorcontrib><creatorcontrib>Kuokkala, V.-T.</creatorcontrib><creatorcontrib>Kettunen, P.</creatorcontrib><title>Small-angle neutron scattering from fatigued copper single crystals</title><title>Materials science & engineering. A, Structural materials : properties, microstructure and processing</title><description>Copper single crystals oriented for single and multiple slip were studied by small-angle neutron scattering (SANS) after fatigue tests at a constant plastic shear strain amplitude
y
γ
pl
= 0.15%
. For the SANS measurements, a special sample holder was used in order to obtain more reliable information about the small differences in the neutron scattering from individual samples. The size of the voids in the samples oriented for single slip increased as a function of the number of fatigue cycles, varying from 0.74 nm to 0.91 nm, but the volume fraction remained more or less constant. The dislocation density observed by SANS was found to increase from 6 × 10
7 mm
−2 at
τ
max/2 to 4 × 10
8 mm
−2 at
τ
max, but remained constant in the saturation stage of cyclic strain hardening. The SANS results obtained are in good agreement with positron annihilation data and transmission electron microscopy observations from the same specimens.</description><subject>Applied sciences</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Exact sciences and technology</subject><subject>Fatigue, brittleness, fracture, and cracks</subject><subject>Mechanical and acoustical properties of condensed matter</subject><subject>Mechanical properties of solids</subject><subject>Metals. Metallurgy</subject><subject>Physics</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1991</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLxDAUhYMoOI7-AxfdKLqoJk2aNhtBBl8w4EJdh9v0Zoj0ZZIK8-_tPNCdq7P5zrncj5BzRm8YZfKWqoylOVX8SrFrRbniaXZAZqwseCoUl4dk9osck5MQPimlTNB8RhZvLTRNCt2qwaTDMfq-S4KBGNG7bpVY37eJhehWI9aJ6YcBfRLcFjd-HSI04ZQc2SnwbJ9z8vH48L54TpevTy-L-2VquMxjymQGOTBrCsgMlLykdWUyW1PBZSErATWF0kAhBUhllYTaopSiBIWQVZXlc3K52x18_zViiLp1wWDTQIf9GHSWC64Kmk-g2IHG9yF4tHrwrgW_1ozqjTG90aE3OrRiemtMZ1PtYr8Pk4HGeuiMC39dJQpWCjpxdzsOp2e_HXodjMPOYO08mqjr3v1_6AekTYCG</recordid><startdate>19910120</startdate><enddate>19910120</enddate><creator>Lepistö, T.K.</creator><creator>Kostorz, G.</creator><creator>Kuokkala, V.-T.</creator><creator>Kettunen, P.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8G</scope><scope>JG9</scope></search><sort><creationdate>19910120</creationdate><title>Small-angle neutron scattering from fatigued copper single crystals</title><author>Lepistö, T.K. ; Kostorz, G. ; Kuokkala, V.-T. ; Kettunen, P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c365t-162a5a1fc7a2ca8380dbc2fd043676b4ad0a8ca764a69f96adfe6648a9ea2bbf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1991</creationdate><topic>Applied sciences</topic><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Exact sciences and technology</topic><topic>Fatigue, brittleness, fracture, and cracks</topic><topic>Mechanical and acoustical properties of condensed matter</topic><topic>Mechanical properties of solids</topic><topic>Metals. Metallurgy</topic><topic>Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lepistö, T.K.</creatorcontrib><creatorcontrib>Kostorz, G.</creatorcontrib><creatorcontrib>Kuokkala, V.-T.</creatorcontrib><creatorcontrib>Kettunen, P.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lepistö, T.K.</au><au>Kostorz, G.</au><au>Kuokkala, V.-T.</au><au>Kettunen, P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Small-angle neutron scattering from fatigued copper single crystals</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>1991-01-20</date><risdate>1991</risdate><volume>131</volume><issue>2</issue><spage>171</spage><epage>176</epage><pages>171-176</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>Copper single crystals oriented for single and multiple slip were studied by small-angle neutron scattering (SANS) after fatigue tests at a constant plastic shear strain amplitude
y
γ
pl
= 0.15%
. For the SANS measurements, a special sample holder was used in order to obtain more reliable information about the small differences in the neutron scattering from individual samples. The size of the voids in the samples oriented for single slip increased as a function of the number of fatigue cycles, varying from 0.74 nm to 0.91 nm, but the volume fraction remained more or less constant. The dislocation density observed by SANS was found to increase from 6 × 10
7 mm
−2 at
τ
max/2 to 4 × 10
8 mm
−2 at
τ
max, but remained constant in the saturation stage of cyclic strain hardening. The SANS results obtained are in good agreement with positron annihilation data and transmission electron microscopy observations from the same specimens.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/0921-5093(91)90393-2</doi><tpages>6</tpages></addata></record> |
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| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 1991-01, Vol.131 (2), p.171-176 |
| issn | 0921-5093 1873-4936 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_25439705 |
| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Condensed matter: structure, mechanical and thermal properties Exact sciences and technology Fatigue, brittleness, fracture, and cracks Mechanical and acoustical properties of condensed matter Mechanical properties of solids Metals. Metallurgy Physics |
| title | Small-angle neutron scattering from fatigued copper single crystals |
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