M
Michael H. Loretto
Researcher at University of Birmingham
Publications - 54
Citations - 2009
Michael H. Loretto is an academic researcher from University of Birmingham. The author has contributed to research in topics: Alloy & Oxide. The author has an hindex of 23, co-authored 54 publications receiving 1656 citations.
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Microstructure and strength of selectively laser melted AlSi10Mg
TL;DR: In this paper, columnar Al grains, about 10μm in diameter, dominate the microstructure, but some equiaxed regions are seen, where columnar grains are made up of long cells, about 500nm in width, rather than dendrites, which are separated from adjacent identical orientation long cells and from non-parallel cells at Al grain boundaries, by Al-Si eutectic.
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Microstructure and yield strength of SLM-fabricated CM247LC Ni-Superalloy
TL;DR: In this article, the authors used analytical scanning and transmission electron microscopy to characterise Selectively Laser Melted (SLM) CM247LC powder and found that longitudinal sections consist mainly of columnar γ grains, containing virtually identically oriented cells, approximately 700nm in width and length up to hundreds of microns.
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In situ observations of the formation of martensite in stainless steel
TL;DR: In this article, the formation of martensite was observed in stainless steel specimens with diameters of less than 0.5 μm, and was associated with dislocation pile-ups on the active slip plane.
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Direct observations of martensite nuclei in stainless steel
TL;DR: In this article, the authors show that stacking faults formed during cooling or deformation are the martensite embryos since even a single glide fault contains close-packed planes of the appropriate c.c.p.h. transformation.
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The effect of process parameters and heat treatment on the microstructure of direct laser fabricated TiAl alloy samples
TL;DR: In this paper, gas atomized Ti48Al2Mn2Nb powders were used as a feedstock material for direct laser fabrication (DLF) of near net shape samples, and the microstructures of these laser treated samples were characterized using optical, scanning (SEM) and transmission electron microscopy (TEM), both immediately after laser fabrication and after heat treatments.