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Article: A quantitative link between microplastic instability and macroscopic deformation behaviors in metallic glasses
Title | A quantitative link between microplastic instability and macroscopic deformation behaviors in metallic glasses | ||||||||
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Authors | |||||||||
Keywords | Amorphous solids Deformation mechanism Macroscopic deformations Macroscopic response Macroscopic stress | ||||||||
Issue Date | 2009 | ||||||||
Publisher | American Institute of Physics. The Journal's web site is located at http://jap.aip.org/jap/staff.jsp | ||||||||
Citation | Journal of Applied Physics, 2009, v. 106 n. 8, article no. 083512 How to Cite? | ||||||||
Abstract | Based on mechanical instability of individual shear transformation zones (STZs), a quantitative link between the microplastic instability and macroscopic deformation behavior of metallic glasses was proposed. Our analysis confirms that macroscopic metallic glasses comprise a statistical distribution of STZ embryos with distributed values of activation energy, and the microplastic instability of all the individual STZs dictates the macroscopic deformation behavior of amorphous solids. The statistical model presented in this paper can successfully reproduce the macroscopic stress-strain curves determined experimentally and readily be used to predict strain-rate effects on the macroscopic responses with the availability of the material parameters at a certain strain rate, which offer new insights into understanding the actual deformation mechanism in amorphous solids. © 2009 American Institute of Physics. | ||||||||
Persistent Identifier | http://hdl.handle.net/10722/129266 | ||||||||
ISSN | 2023 Impact Factor: 2.7 2023 SCImago Journal Rankings: 0.649 | ||||||||
ISI Accession Number ID |
Funding Information: This research was supported in part by National Natural Science Foundation of China (Grant No. 50725104), the 973 program (Grant No. 2007CB613903), and the program of Introducing Talents of Discipline to Universities (Project No. B07003). Thanks are due to Dr. A. D. Drozdov at Ben-Gurion University of the Negev, Israel, for fruitful discussion on the modeling work. | ||||||||
References |
DC Field | Value | Language |
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dc.contributor.author | Wu, Y | en_HK |
dc.contributor.author | Chen, GL | en_HK |
dc.contributor.author | Hui, XD | en_HK |
dc.contributor.author | Liu, CT | en_HK |
dc.contributor.author | Lin, Y | en_HK |
dc.contributor.author | Shang, XC | en_HK |
dc.contributor.author | Lu, ZP | en_HK |
dc.date.accessioned | 2010-12-23T08:34:25Z | - |
dc.date.available | 2010-12-23T08:34:25Z | - |
dc.date.issued | 2009 | en_HK |
dc.identifier.citation | Journal of Applied Physics, 2009, v. 106 n. 8, article no. 083512 | - |
dc.identifier.issn | 0021-8979 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/129266 | - |
dc.description.abstract | Based on mechanical instability of individual shear transformation zones (STZs), a quantitative link between the microplastic instability and macroscopic deformation behavior of metallic glasses was proposed. Our analysis confirms that macroscopic metallic glasses comprise a statistical distribution of STZ embryos with distributed values of activation energy, and the microplastic instability of all the individual STZs dictates the macroscopic deformation behavior of amorphous solids. The statistical model presented in this paper can successfully reproduce the macroscopic stress-strain curves determined experimentally and readily be used to predict strain-rate effects on the macroscopic responses with the availability of the material parameters at a certain strain rate, which offer new insights into understanding the actual deformation mechanism in amorphous solids. © 2009 American Institute of Physics. | en_HK |
dc.language | eng | en_US |
dc.publisher | American Institute of Physics. The Journal's web site is located at http://jap.aip.org/jap/staff.jsp | en_HK |
dc.relation.ispartof | Journal of Applied Physics | en_HK |
dc.rights | Copyright 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Applied Physics, 2009, v. 106 n. 8, article no. 083512 and may be found at https://doi.org/10.1063/1.3247968 | - |
dc.subject | Amorphous solids | - |
dc.subject | Deformation mechanism | - |
dc.subject | Macroscopic deformations | - |
dc.subject | Macroscopic response | - |
dc.subject | Macroscopic stress | - |
dc.title | A quantitative link between microplastic instability and macroscopic deformation behaviors in metallic glasses | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0021-8979&volume=106&issue=8, article no. 083512&spage=&epage=&date=2009&atitle=A+quantitative+link+between+microplastic+instability+and+macroscopic+deformation+behaviors+in+metallic+glasses | - |
dc.identifier.email | Lin, Y:ylin@hku.hk | en_HK |
dc.identifier.authority | Lin, Y=rp00080 | en_HK |
dc.description.nature | published_or_final_version | en_US |
dc.identifier.doi | 10.1063/1.3247968 | en_HK |
dc.identifier.scopus | eid_2-s2.0-70350735774 | en_HK |
dc.identifier.hkuros | 178077 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-70350735774&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 106 | en_HK |
dc.identifier.issue | 8 | en_HK |
dc.identifier.spage | article no. 083512 | - |
dc.identifier.epage | article no. 083512 | - |
dc.identifier.isi | WOS:000271358100034 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Wu, Y=7406896627 | en_HK |
dc.identifier.scopusauthorid | Chen, GL=7407478838 | en_HK |
dc.identifier.scopusauthorid | Hui, XD=25925133500 | en_HK |
dc.identifier.scopusauthorid | Liu, CT=8690267700 | en_HK |
dc.identifier.scopusauthorid | Lin, Y=7406585339 | en_HK |
dc.identifier.scopusauthorid | Shang, XC=22935731500 | en_HK |
dc.identifier.scopusauthorid | Lu, ZP=7404768684 | en_HK |
dc.identifier.issnl | 0021-8979 | - |