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- W1976118429 abstract "In spite of many superior high-temperature properties of intermetallics, it has been difficult to understand their intrinsic brittleness. To eliminate or improve the embrittlement, the conventional alloying technique based on the trial-and-error method is still the most effective and practical. However, it remains a main challenge for both physicists and materials scientists to provide either an alloying principle or a deep insight into its toughening mechanism at an atomic or electronic level. This letter reports a simple experimental approach that uses work function (WF) as a sensitive indicator of the role of alloying in changing mechanical behavior. NiAl is chosen as a typical example. It is found that with the addition of Cr and Ce, the ductility of NiAl increases significantly. Such an increase in ductility corresponds to a concomitant decrease in the WF, which is attributed to a change in the nature of the atomic bonding or in the electronic structure induced by the alloying. This fundamental understanding on the embrittlement nature of NiAl could provide some alloying guidelines or principles for other intermetallics." @default.
- W1976118429 created "2016-06-24" @default.
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- W1976118429 date "2009-02-01" @default.
- W1976118429 modified "2023-10-18" @default.
- W1976118429 title "Correlation between ductility and work function in NiAl–Ce–Cr alloys" @default.
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- W1976118429 doi "https://doi.org/10.1080/09500830802657276" @default.
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