Clustering and diffusion in aluminium alloys
Research output: Thesis › Doctoral Thesis
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2019.
Research output: Thesis › Doctoral Thesis
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TY - BOOK
T1 - Clustering and diffusion in aluminium alloys
AU - Dumitraschkewitz, Phillip
N1 - embargoed until 06-06-2020
PY - 2019
Y1 - 2019
N2 - This thesis gives an overview of existing information on natural aging and clustering in aluminum alloys. An in-depth understanding of existing analysis methods of clustering is established. Moreover, an approach is developed, and applied, to access natural aging times below one hour via atom probe tomography. With the realized experiments it is shown that the as-quenched state can be investigated. Moreover it is demonstrated that clustering and all non-equilibrium vacancy controlled diffusionional processes are size-dependent and natural aging is effectively stopped when the material dimensions reach the nanometer scale.
AB - This thesis gives an overview of existing information on natural aging and clustering in aluminum alloys. An in-depth understanding of existing analysis methods of clustering is established. Moreover, an approach is developed, and applied, to access natural aging times below one hour via atom probe tomography. With the realized experiments it is shown that the as-quenched state can be investigated. Moreover it is demonstrated that clustering and all non-equilibrium vacancy controlled diffusionional processes are size-dependent and natural aging is effectively stopped when the material dimensions reach the nanometer scale.
KW - Clusterbildung
KW - Diffusion
KW - Atomsondentomographie
KW - Aluminium
KW - AlMgSi
KW - Clustering
KW - Diffusion
KW - Atom probe tomography
KW - Aluminium
KW - AlMgSi
M3 - Doctoral Thesis
ER -
