Abstract：
:A cross-correlative precession electron diffraction - atom probe tomography investigation of Cr segregation in a Fe(Cr) nanocrystalline alloy was undertaken. Solute segregation was found to be dependent on grain boundary type. The results of which were compared to a hybrid Molecular Dynamics and Monte Carlo simulation that predicted the segregation for special character, low angle, and high angle grain boundaries, as well as the angle of inclination of the grain boundary. It was found that the highest segregation concentration was for the high angle grain boundaries and is explained in terms of clustering driven by the onset of phase separation. For special character boundaries, the highest Gibbsain interfacial excess was predicted at the incoherent ∑3 followed by ∑9 and ∑11 boundaries with negligible segregation to the twin and ∑5 boundaries. In addition, the low angle grain boundaries predicted negligible segregation. All of these trends matched well with the experiment. This solute-boundary segregation dependency for the special character grain boundaries is explained in terms of excess volume and the energetic distribution of the solute in the boundary.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Zhou X,Yu XX,Kaub T,Martens RL,Thompson GBdoi
10.1038/srep34642subject
Has Abstractpub_date
2016-10-06 00:00:00pages
34642issn
2045-2322pii
srep34642journal_volume
6pub_type
杂志文章abstract：:The PIM1 serine/threonine protein kinase mediates growth factor and survival signalling, and cooperates potently with c-MYC during tumorigenesis. PIM1 is overexpressed in many human cancers and is a promising target for drug development. PIM1 levels are regulated mainly through cytokine-induced transcription and prote...
journal_title：Scientific reports
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pub_type： 杂志文章
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abstract：:Routine immunizations and supplementary immunization activities (SIAs) have significantly improved measles control over the past two decades in China. Progress towards eliminating measles currently faces multiple challenges as the infection age increases, and adult-targeted SIA strategies are being considered. This st...
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pub_type： 杂志文章
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更新日期：2016-01-27 00:00:00
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pub_type： 临床试验,杂志文章
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journal_title：Scientific reports
pub_type： 已发布勘误
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journal_title：Scientific reports
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journal_title：Scientific reports
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journal_title：Scientific reports
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