Atom probe tomography of metallic nanostructures

被引:0
作者
Kazuhiro Hono
Dierk Raabe
Simon P. Ringer
David N. Seidman
机构
[1] National Institute for Materials Science,Magnetic Materials Unit
[2] Max Planck Institute for Iron Research,Department of Microstructure Physics and Alloy Design
[3] The University of Sydney,Australian Institute for Nanoscale Science and Technology, and School of Aerospace Mechanical and Mechatronic Engineering
[4] Northwestern University,Department of Materials Science and Engineering and the Northwestern University Center for Atom Probe Tomography
来源
MRS Bulletin | 2016年 / 41卷
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摘要
This article focuses on four topics that demonstrate the importance of atom probe tomography for obtaining nanostructural information that provides deep insights into the structures of metallic alloys, leading to a better understanding of their properties. First, we discuss the microstructure–coercivity relationship of Nd-Fe-B permanent magnets, essential for developing a higher coercivity magnet. Second, we address equilibrium segregation at grain boundaries with the aim of manipulating their interfacial structure, energies, compositions, and properties, thereby enabling beneficial material behavior. Third, recent progress in the search to extend the performance and practicality of the next generation of advanced high-strength steels is discussed. Finally, a study of the temporal evolution of a Ni-Al-Cr alloy through the stages of nucleation, growth, and coarsening (Ostwald ripening) and its relationship with the predictions of a model for quasi-stationary coarsening is described. This information is critical for understanding high-temperature mechanical properties of the material.
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页码:23 / 29
页数:6
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