Energy investigations on the mechanical properties of magnesium alloyed by X = C, B, N, O and vacancy

Handle URI:
http://hdl.handle.net/10754/563049
Title:
Energy investigations on the mechanical properties of magnesium alloyed by X = C, B, N, O and vacancy
Authors:
Wu, Xiaozhi; Liu, Lili; Wang, Rui; Gan, Liyong; Liu, Qing
Abstract:
The generalized stacking fault (GSF) energies and surface energies of magnesium and its alloys with alloying atoms X = C, B, N, O and vacancy have been investigated using the first-principles methods. It is found that the predominant reducing effects of the alloying atoms and vacancy on the stacking fault energy are resulted from the position of them in the 1st layer near the slip plane. The stacking fault energies are nearly the same as the pure magnesium while the alloying atoms and vacancy are placed in the 2nd, 3rd, 4th, 5th and 6th layers. It has been shown that O strongly reduces the GSF energy of Mg. The alloying atoms C, B and N increase the surface energy, but O and vacancy reduce the surface energy of Mg. The ductilities of Mg and Mg alloys have been discussed based on the Rice criterion by using the ratio between surface energy and unstable stacking fault energy. © 2013 Higher Education Press and Springer-Verlag Berlin Heidelberg.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Publisher:
Springer Nature
Journal:
Frontiers of Materials Science
Issue Date:
25-Oct-2013
DOI:
10.1007/s11706-013-0221-9
Type:
Article
ISSN:
2095025X
Sponsors:
The work was supported by the National Natural Science Foundation of China (Grant No. 11104361) and Project No. CQDXWL2012015 supported by the Fundamental Research Funds for the Central Universities.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorWu, Xiaozhien
dc.contributor.authorLiu, Lilien
dc.contributor.authorWang, Ruien
dc.contributor.authorGan, Liyongen
dc.contributor.authorLiu, Qingen
dc.date.accessioned2015-08-03T11:34:36Zen
dc.date.available2015-08-03T11:34:36Zen
dc.date.issued2013-10-25en
dc.identifier.issn2095025Xen
dc.identifier.doi10.1007/s11706-013-0221-9en
dc.identifier.urihttp://hdl.handle.net/10754/563049en
dc.description.abstractThe generalized stacking fault (GSF) energies and surface energies of magnesium and its alloys with alloying atoms X = C, B, N, O and vacancy have been investigated using the first-principles methods. It is found that the predominant reducing effects of the alloying atoms and vacancy on the stacking fault energy are resulted from the position of them in the 1st layer near the slip plane. The stacking fault energies are nearly the same as the pure magnesium while the alloying atoms and vacancy are placed in the 2nd, 3rd, 4th, 5th and 6th layers. It has been shown that O strongly reduces the GSF energy of Mg. The alloying atoms C, B and N increase the surface energy, but O and vacancy reduce the surface energy of Mg. The ductilities of Mg and Mg alloys have been discussed based on the Rice criterion by using the ratio between surface energy and unstable stacking fault energy. © 2013 Higher Education Press and Springer-Verlag Berlin Heidelberg.en
dc.description.sponsorshipThe work was supported by the National Natural Science Foundation of China (Grant No. 11104361) and Project No. CQDXWL2012015 supported by the Fundamental Research Funds for the Central Universities.en
dc.publisherSpringer Natureen
dc.subjectmagnesiumen
dc.subjectRice criterionen
dc.subjectstacking fault energyen
dc.subjectsurface energyen
dc.titleEnergy investigations on the mechanical properties of magnesium alloyed by X = C, B, N, O and vacancyen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalFrontiers of Materials Scienceen
dc.contributor.institutionNational Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing, 400044, Chinaen
dc.contributor.institutionCollege of Materials Science and Engineering, Chongqing University, Chongqing, 400044, Chinaen
dc.contributor.institutionCollege of Physics and Institute for Structure and Function, Chongqing University, Chongqing, 401331, Chinaen
kaust.authorGan, Liyongen
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