dc.contributor.author | Somekawa, Hidetoshi | |
dc.contributor.author | Schuh, Christopher A | |
dc.date.accessioned | 2017-02-10T21:58:31Z | |
dc.date.available | 2017-02-10T21:58:31Z | |
dc.date.issued | 2016-04 | |
dc.date.submitted | 2015-06 | |
dc.identifier.issn | 1073-5623 | |
dc.identifier.issn | 1543-1940 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/106918 | |
dc.description.abstract | The effect of crystal orientation on nanoindentation behavior at both quasi-static and high strain rates was investigated using single-crystalline magnesium oriented in basal and prismatic configurations. Both the basal and prismatic planes had similar activation volumes, 55 and 73[superscript b3] for deformation at room temperature, as well as a small temperature dependence up to 423 K (150 °C). Microstructural observations beneath the indentations revealed that { 10[bar over 1]2 } type deformation twins were formed in both orientations irrespective of testing temperature. With twins forming beneath the indenter and multiple orientations of loading, it is believed that cross-slip and/or multiple slip are likely rate-controlling for global deformation, which also aligns with observations on nanoindentation of polycrystalline coarse-grained magnesium. The locations of the twins were consistent with expectations based on indentation mechanics as assessed by finite element simulations. The finite element simulations also predicted that an indenter tip with a shaper tip radius would tend to promote { 10[bar over 1]2 } twins. | en_US |
dc.description.sponsorship | United States. Army Research Office. Institute for Soldier Nanotechnologies | en_US |
dc.description.sponsorship | Japan Society for the Promotion of Science (Grant-in-Aid (C) No. 25420765) | en_US |
dc.publisher | Springer US | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1007/s11661-016-3479-6 | en_US |
dc.rights | Creative Commons Attribution-Noncommercial-Share Alike | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | en_US |
dc.source | Springer US | en_US |
dc.title | Effect of Crystal Orientation on Nanoindentation Behavior in Magnesium | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Somekawa, Hidetoshi, and Christopher A. Schuh. “Effect of Crystal Orientation on Nanoindentation Behavior in Magnesium.” Metallurgical and Materials Transactions A 47.6 (2016): 3227–3234. | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Materials Science and Engineering | en_US |
dc.contributor.mitauthor | Schuh, Christopher A | |
dc.relation.journal | Metallurgical and Materials Transactions A | en_US |
dc.eprint.version | Author's final manuscript | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dc.date.updated | 2016-05-23T12:17:39Z | |
dc.language.rfc3066 | en | |
dc.rights.holder | The Minerals, Metals & Materials Society and ASM International | |
dspace.orderedauthors | Somekawa, Hidetoshi; Schuh, Christopher A. | en_US |
dspace.embargo.terms | N | en |
dc.identifier.orcid | https://orcid.org/0000-0001-9856-2682 | |
mit.license | OPEN_ACCESS_POLICY | en_US |