a comparison was made between the experimental non-isothermal a vs. t curves and those calculated on the basis of a previous isothermal study. It was observed that for low heating rates, when the "thermal lag" is negligible, the dynamic measurements are in good agreement with the isothermal ones. Furthermore, for process (I), two mathematical methods proposed for the interpretation of the non-i...

The crystallization behaviour during low temperature annealing of samples the Zr59.3Cu28.8Al10.4Nb1.5 (at%) bulk metallic glass produced by suction casting and laser powder bed fusion (LPBF) process were studied with small angle neutron scattering (SANS), X-ray diffraction scanning electron microscopy. in-situ SANS measurements isothermal reveals that phase separation in LPBF processed material...

Ge thermal diffusion is not only the phenomenon limiting decomposition and crystallization of Ge-rich GeSbTe alloys but also responsible for some failures phase change memory devices using them. However, in canonical Ge2Sb2Te5 (GST-225) or (GGST) has been little studied experimentally. For these reasons, we have designed set up a series experiments aimed at highlighting studying this within sol...

Abstract Alloys processed by laser powder-bed fusion show distinct microstructures composed of dislocation cells, dispersed nanoparticles, and columnar grains. Upon post-build annealing, such alloys sluggish recrystallization kinetics compared to the conventionally counterpart. To understand this behavior, AISI 316L stainless steel samples were constructed using island scan strategy. Rhodonite-...

To apply the duplex type low-carbon medium-manganese steel to hot/warm-forging and -stamping products, influence of cooling process routes immediately after intercritical annealing such as air-cooling (AC) isothermal transformation (IT) processes on impact toughness 0.2%C-1.5%Si-5%Mn (in mass %) medium-Mn (D-MMn) was investigated. Moreover microstructural tensile properties were also The AC inc...

Undercooled phase exists behind glass with superheated medium-range order between Tg and Tn+ > Tm. The ordered volume fraction stays equal to the percolation threshold F ≅ 0.15 of broken bonds up Tn+. difference ΔTg Tg(bulk) films thickness (h h0) Tg(h) ultrathin < is a linear function (h-ho). Dense layer minimum hr grafted against substrate by isothermal annealing, rinsed reduce film below hr/...

The influence of the microstructure on thermal behavior cathodic arc deposited TiAlN coatings was studied as a function isothermal annealing. Two compositionally similar but structurally different were compared, Ti 0·34 Al 0·66 N 0.96 coating with fine-grain structure consisting mixture cubic (c) and hexagonal (h) phases, 0·40 0·60 0.94 coarse-grain phase. By in situ wide-angle synchrotron x-ra...

The aim of this study is to investigate effects of isothermal aging on mechanical properties of fiber metal laminates (FMLs) and glass/epoxy composites. For this purpose, both materials were fabricated using the wet lay-up manufacturing technique under vacuum pressure. Both the glass/epoxy composites and the FML specimens were then subjected to isothermal aging (130°C, dried air) for up to 5 we...