| Reversible Twinning in Pure Aluminum | |
| B. Q. Li; M. L. Sui; B. Li; E. Ma; S. X. Mao | |
| 2009 | |
| Source Publication | Physical Review Letters
 |
| ISSN | 0031-9007 |
| Volume | 102Issue:20 |
| Abstract | Twinning in metals is normally a permanent plastic deformation mechanism. Here we report reversible twinning in high stacking fault energy (SFE) aluminum. Twinning and spontaneous detwinning at the crack tip have been captured in situ during tensile straining under a transmission electron microscope. Both the in situ observation and the molecular dynamics simulations reveal a two-stage detwinning process. The high propensity for detwinning is due to the high SFE and the low frictional forces against the detwinning partial dislocations in Al. This discovery of reversible twinning has implications for the deformation of other high SFE materials. |
| description.department | [li, b. q.; sui, m. l.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [li, b.; ma, e.] johns hopkins univ, dept mat sci & engn, baltimore, md 21218 usa. [mao, s. x.] univ pittsburgh, dept mech engn & mat sci, pittsburgh, pa 15261 usa.;li, bq (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;mlsui@imr.ac.cn smao@engr.pitt.edu |
| Keyword | Molecular-dynamics Simulation Crack-tip Nanocrystalline Aluminum Deformation Al Twins |
| URL | 查看原文 |
| WOS ID | WOS:000266309000033 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/32011 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | B. Q. Li,M. L. Sui,B. Li,et al. Reversible Twinning in Pure Aluminum[J]. Physical Review Letters,2009,102(20). |
| APA | B. Q. Li,M. L. Sui,B. Li,E. Ma,&S. X. Mao.(2009).Reversible Twinning in Pure Aluminum.Physical Review Letters,102(20). |
| MLA | B. Q. Li,et al."Reversible Twinning in Pure Aluminum".Physical Review Letters 102.20(2009). |
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