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Generalized stackin...
Generalized stacking fault energy of gamma-Fe
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- Li, Wei (författare)
- KTH,Tillämpad materialfysik
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- Lu, Song (författare)
- KTH,Tillämpad materialfysik
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- Hu, Qing-Miao (författare)
- Chinese Academy Science, CHN,Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.
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visa fler...
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- Johansson, Börje (författare)
- KTH,Uppsala universitet,Materialteori,Royal Inst Technol, Dept Mat Sci & Engn, Appl Mat Phys, Stockholm, Sweden.,Tillämpad materialfysik,Uppsala University, Sweden,ENHETEN EGENSKAPER
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- Kwon, Se Kyun (författare)
- Pohang Univ Sci & Technol, Grad Inst Ferrous Technol, Pohang, South Korea.
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- Grehk, Mikael (författare)
- AB Sandvik Material Technology, Sandviken,AB Sandvik Mat Technol, Sandviken, Sweden.
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- Johnsson, Jan Y. (författare)
- Outokumpu Stainless AB, Avesta Res Ctr, Avesta, Sweden.
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- Vitos, Levente (författare)
- KTH,Uppsala universitet,Materialteori,Royal Inst Technol, Dept Mat Sci & Engn, Appl Mat Phys, Stockholm, Sweden.;Inst Solid State Phys & Opt, Wigner Res Ctr Phys, Budapest, Hungary.,Tillämpad materialfysik,Uppsala University, Sweden; Institute for Solid State Physics and Optics, Hungary,ENHETEN EGENSKAPER,KTH; Uppsala University ; Institute for Solid State Physics and Optics, HUN
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(creator_code:org_t)
- 2016-02-12
- 2016
- Engelska.
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Ingår i: Philosophical Magazine. - : Taylor & Francis. - 1478-6435 .- 1478-6443. ; 96:6, s. 524-541
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- We investigate the generalized stacking fault energy ( [GRAPHICS] -surface) of paramagnetic [GRAPHICS] -Fe as a function of temperature. At static condition, the face-centred cubic (fcc) lattice is thermodynamically unstable with respect to the hexagonal close-packed lattice, resulting in a negative intrinsic stacking fault energy (ISF). However, the unstable stacking fault energy (USF), representing the energy barrier along the [GRAPHICS] -surface connecting the ideal fcc and the intrinsic stacking fault positions, is large and positive. The ISF is calculated to have a strong positive temperature coefficient, while the USF decreases monotonously with temperature. According to the recent plasticity theory, the overall effect of temperature is to move paramagnetic fcc Fe from the stacking fault formation regime ( [GRAPHICS] K) towards maximum twinning ( [GRAPHICS] K) and finally to a dominating full-slip regime ( [GRAPHICS] K). Our predictions are discussed in connection with the available experimental observations.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- -Fe
- plasticity
- stacking fault energy
- Materialteknik
- Materials Engineering
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