Strain-rate sensitivity of strength in macro-to-micro-to-nano crystalline nickel
The mechanical behavior of nickel is evaluated over eight-orders of magnitude change in strain rate to see if the change in strain-rate sensitivity exponent is affected by the grain size decreasing from the micron to nanoscale range. Tensile testing is used to measure the strain-rate dependence of t...
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| Veröffentlicht in: | Surface & coatings technology 2011-12, Vol.206 (7), p.1845-1849 |
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| container_title | Surface & coatings technology |
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| creator | Humphrey, Ryan T. Jankowski, Alan F. |
| description | The mechanical behavior of nickel is evaluated over eight-orders of magnitude change in strain rate to see if the change in strain-rate sensitivity exponent is affected by the grain size decreasing from the micron to nanoscale range. Tensile testing is used to measure the strain-rate dependence of the tensile strength on the grain size in crystalline nickel foils. Micro-scratch testing is used to determine the strain-rate dependence of the scratch hardness variation with scratch velocity. It is found that the mechanical test results can be directly compared. The increase in the strain-rate sensitivity exponent that is found with increasing strain rate is slower for nanocrystalline than for microcrystalline nickel foils where strength values begin to converge at the highest strain rates.
► Grain refinement enhances the strength of nickel from the micro-to-nano scale. ► The strain-rate sensitivity of strength is measured using tensile and micro-scratch testing. ► Nano-crystalline nickel is more strain-rate sensitive at lower strain rates. ► Micro-crystalline nickel is more strain-rate sensitive in the phonon drag regime. |
| doi_str_mv | 10.1016/j.surfcoat.2011.08.010 |
| format | Article |
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► Grain refinement enhances the strength of nickel from the micro-to-nano scale. ► The strain-rate sensitivity of strength is measured using tensile and micro-scratch testing. ► Nano-crystalline nickel is more strain-rate sensitive at lower strain rates. ► Micro-crystalline nickel is more strain-rate sensitive in the phonon drag regime.</description><identifier>ISSN: 0257-8972</identifier><identifier>EISSN: 1879-3347</identifier><identifier>DOI: 10.1016/j.surfcoat.2011.08.010</identifier><identifier>CODEN: SCTEEJ</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Cross-disciplinary physics: materials science; rheology ; Crystal structure ; Electrodeposited coatings ; Exact sciences and technology ; Exponents ; Foils ; Grain size ; Materials science ; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology ; Metallic coatings ; Metals. Metallurgy ; Nanocrystalline ; Nanostructure ; Nickel ; Physics ; Production techniques ; Scratch hardness ; Strain rate ; Strain rate sensitivity ; Strength ; Surface treatment ; Surface treatments ; Tensile testing</subject><ispartof>Surface & coatings technology, 2011-12, Vol.206 (7), p.1845-1849</ispartof><rights>2011 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c423t-460f686c8d4880e365250c7f0b18fe82e3d85c85c77bc306a4a103299d83db5d3</citedby><cites>FETCH-LOGICAL-c423t-460f686c8d4880e365250c7f0b18fe82e3d85c85c77bc306a4a103299d83db5d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.surfcoat.2011.08.010$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>310,311,315,781,785,790,791,3551,23932,23933,25142,27926,27927,45997</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25647617$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Humphrey, Ryan T.</creatorcontrib><creatorcontrib>Jankowski, Alan F.</creatorcontrib><title>Strain-rate sensitivity of strength in macro-to-micro-to-nano crystalline nickel</title><title>Surface & coatings technology</title><description>The mechanical behavior of nickel is evaluated over eight-orders of magnitude change in strain rate to see if the change in strain-rate sensitivity exponent is affected by the grain size decreasing from the micron to nanoscale range. Tensile testing is used to measure the strain-rate dependence of the tensile strength on the grain size in crystalline nickel foils. Micro-scratch testing is used to determine the strain-rate dependence of the scratch hardness variation with scratch velocity. It is found that the mechanical test results can be directly compared. The increase in the strain-rate sensitivity exponent that is found with increasing strain rate is slower for nanocrystalline than for microcrystalline nickel foils where strength values begin to converge at the highest strain rates.
► Grain refinement enhances the strength of nickel from the micro-to-nano scale. ► The strain-rate sensitivity of strength is measured using tensile and micro-scratch testing. ► Nano-crystalline nickel is more strain-rate sensitive at lower strain rates. ► Micro-crystalline nickel is more strain-rate sensitive in the phonon drag regime.</description><subject>Applied sciences</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Crystal structure</subject><subject>Electrodeposited coatings</subject><subject>Exact sciences and technology</subject><subject>Exponents</subject><subject>Foils</subject><subject>Grain size</subject><subject>Materials science</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metallic coatings</subject><subject>Metals. Metallurgy</subject><subject>Nanocrystalline</subject><subject>Nanostructure</subject><subject>Nickel</subject><subject>Physics</subject><subject>Production techniques</subject><subject>Scratch hardness</subject><subject>Strain rate</subject><subject>Strain rate sensitivity</subject><subject>Strength</subject><subject>Surface treatment</subject><subject>Surface treatments</subject><subject>Tensile testing</subject><issn>0257-8972</issn><issn>1879-3347</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkE9LxDAQxYMouK5-BelF8JI6adokvSmL_2BBQT2HbDrVrG2qSXZhv71ddvUqDMwcfm_ezCPknEHOgImrZR5XobWDSXkBjOWgcmBwQCZMyZpyXspDMoGiklTVsjgmJzEuAYDJupyQ55cUjPM0mIRZRB9dcmuXNtnQZjEF9O_pI3M-640NA00D7d1-8MYPmQ2bmEzXOY-Zd_YTu1Ny1Jou4tm-T8nb3e3r7IHOn-4fZzdzasuCJ1oKaIUSVjWlUoBcVEUFVrawYKpFVSBvVGXHknJhOQhTGga8qOtG8WZRNXxKLnd7v8LwvcKYdO-ixa4zHodV1ExIxlnJWT2iYoeOl8cYsNVfwfUmbDQDvY1QL_VvhHoboQalxwhH4cXew0RrujYYb138UxeVKKVgcuSudxyOD68dBh2tQ2-xcQFt0s3g_rP6ATOziyg</recordid><startdate>20111225</startdate><enddate>20111225</enddate><creator>Humphrey, Ryan T.</creator><creator>Jankowski, Alan F.</creator><general>Elsevier B.V</general><general>Elsevier</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>20111225</creationdate><title>Strain-rate sensitivity of strength in macro-to-micro-to-nano crystalline nickel</title><author>Humphrey, Ryan T. ; Jankowski, Alan F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c423t-460f686c8d4880e365250c7f0b18fe82e3d85c85c77bc306a4a103299d83db5d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Applied sciences</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Crystal structure</topic><topic>Electrodeposited coatings</topic><topic>Exact sciences and technology</topic><topic>Exponents</topic><topic>Foils</topic><topic>Grain size</topic><topic>Materials science</topic><topic>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</topic><topic>Metallic coatings</topic><topic>Metals. Metallurgy</topic><topic>Nanocrystalline</topic><topic>Nanostructure</topic><topic>Nickel</topic><topic>Physics</topic><topic>Production techniques</topic><topic>Scratch hardness</topic><topic>Strain rate</topic><topic>Strain rate sensitivity</topic><topic>Strength</topic><topic>Surface treatment</topic><topic>Surface treatments</topic><topic>Tensile testing</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Humphrey, Ryan T.</creatorcontrib><creatorcontrib>Jankowski, Alan F.</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>Surface & coatings technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Humphrey, Ryan T.</au><au>Jankowski, Alan F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Strain-rate sensitivity of strength in macro-to-micro-to-nano crystalline nickel</atitle><jtitle>Surface & coatings technology</jtitle><date>2011-12-25</date><risdate>2011</risdate><volume>206</volume><issue>7</issue><spage>1845</spage><epage>1849</epage><pages>1845-1849</pages><issn>0257-8972</issn><eissn>1879-3347</eissn><coden>SCTEEJ</coden><abstract>The mechanical behavior of nickel is evaluated over eight-orders of magnitude change in strain rate to see if the change in strain-rate sensitivity exponent is affected by the grain size decreasing from the micron to nanoscale range. Tensile testing is used to measure the strain-rate dependence of the tensile strength on the grain size in crystalline nickel foils. Micro-scratch testing is used to determine the strain-rate dependence of the scratch hardness variation with scratch velocity. It is found that the mechanical test results can be directly compared. The increase in the strain-rate sensitivity exponent that is found with increasing strain rate is slower for nanocrystalline than for microcrystalline nickel foils where strength values begin to converge at the highest strain rates.
► Grain refinement enhances the strength of nickel from the micro-to-nano scale. ► The strain-rate sensitivity of strength is measured using tensile and micro-scratch testing. ► Nano-crystalline nickel is more strain-rate sensitive at lower strain rates. ► Micro-crystalline nickel is more strain-rate sensitive in the phonon drag regime.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.surfcoat.2011.08.010</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Applied sciences Cross-disciplinary physics: materials science rheology Crystal structure Electrodeposited coatings Exact sciences and technology Exponents Foils Grain size Materials science Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metallic coatings Metals. Metallurgy Nanocrystalline Nanostructure Nickel Physics Production techniques Scratch hardness Strain rate Strain rate sensitivity Strength Surface treatment Surface treatments Tensile testing |
| title | Strain-rate sensitivity of strength in macro-to-micro-to-nano crystalline nickel |
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