@article{EvsevleevMishurovaCabezaetal.2018,
  author    = {Evsevleev, Sergei and Mishurova, Tatiana and Cabeza, Sandra and Koos, R. and Sevostianov, Igor and Garc{\´e}s, Gonzales and Requena, Guillermo and Fernandez, R. and Bruno, Giovanni},
  title     = {The role of intermetallics in stress partitioning and damage evolution of AlSil2CuMgNi alloy},
  series = {Materials Science and Engineering: A-Structural materials: properties, microstructure and processing},
  volume    = {736},
  journal   = {Materials Science and Engineering: A-Structural materials: properties, microstructure and processing},
  publisher = {Elsevier},
  address   = {Lausanne},
  issn      = {0921-5093},
  doi       = {10.1016/j.msea.2018.08.070},
  pages     = {453 -- 464},
  year      = {2018},
  abstract  = {Load partitioning between phases in a cast AlSi12CuMgNi alloy was investigated by in-situ compression test during neutron diffraction experiments. Computed tomography (CT) was used to determine volume fractions of eutectic Si and intermetallic (IM) phases, and to assess internal damage after ex-situ compression tests. The CT reconstructed volumes showed the interconnectivity of IM phases, which build a 3D network together with eutectic Si. Large stresses were found in IMs, revealing their significant role as a reinforcement for the alloy. An existing micromechanical model based on Maxwell scheme was extended to the present case, assuming the alloy as a three-phase composite (Al matrix, eutectic Si, IM phases). The model agrees well with the experimental data. Moreover, it allows predicting the principal stresses in each phase, while experiments can only determine stress differences between the axial and radial sample directions. Finally, we showed that the addition of alloying elements not only allowed developing a 3D interconnected network, but also improved the strength of the Al matrix, and the ability of the alloy constituents to bear mechanical load.},
  language  = {en}
}
@article{StegemannCabezaPelkneretal.2018,
  author    = {Stegemann, Robert and Cabeza, Sandra and Pelkner, Matthias and Lyamkin, Viktor and Pittner, Andreas and Werner, Daniel and Wimpory, Robert and Boin, Mirko and Kreutzbruck, Marc and Bruno, Giovanni},
  title     = {Influence of the microstructure on magnetic stray fields of low-carbon steel welds},
  series = {Journal of Nondestructive Evaluation},
  volume    = {37},
  journal   = {Journal of Nondestructive Evaluation},
  number    = {3},
  publisher = {Springer},
  address   = {New York},
  issn      = {0195-9298},
  doi       = {10.1007/s10921-018-0522-0},
  pages     = {18},
  year      = {2018},
  abstract  = {This study examines the relationship between the magnetic mesostructure with the microstructure of low carbon steel tungsten inert gas welds. Optical microscopy revealed variation in the microstructure of the parent material, in the heat affected and fusion zones, correlating with distinctive changes in the local magnetic stray fields measured with high spatial resolution giant magneto resistance sensors. In the vicinity of the heat affected zone high residual stresses were found using neutron diffraction. Notably, the gradients of von Mises stress and triaxial magnetic stray field modulus follow the same tendency transverse to the weld. In contrast, micro-X-ray fluorescence characterization indicated that local changes in element composition had no independent effect on magnetic stray fields.},
  language  = {en}
}
@article{NadammalCabezaMishurovaetal.2017,
  author    = {Nadammal, Naresh and Cabeza, Sandra and Mishurova, Tatiana and Thiede, Tobias and Kromm, Arne and Seyfert, Christoph and Farahbod, Lena and Haberland, Christoph and Schneider, Judith Ann and Portella, Pedro Dolabella and Bruno, Giovanni},
  title     = {Effect of hatch length on the development of microstructure, texture and residual stresses in selective laser melted superalloy Inconel 718},
  series = {Materials \& Design},
  volume    = {134},
  journal   = {Materials \& Design},
  publisher = {Elsevier},
  address   = {Oxford},
  issn      = {0264-1275},
  doi       = {10.1016/j.matdes.2017.08.049},
  pages     = {139 -- 150},
  year      = {2017},
  abstract  = {In the present study, samples fabricated by varying the deposition hatch length during selective laser melting of nickel based superalloy Inconel 718 were investigated. Microstructure and texture of these samples was characterized using scanning electron microscopy, combined with electron back-scattered diffraction, and residual stress assessment, using neutron diffraction method. Textured columnar grains oriented along the sample building direction were observed in the shorter hatch length processed sample. A ten-fold increase in the hatch length reduced the texture intensity by a factor of two attributed to the formation of finer grains in the longer hatch length sample. Larger gradients of transverse residual stress in the longer hatch length sample were also observed. Along the build direction, compressive stresses in the shorter hatch length and negligible stresses for the longer hatch length specimen were observed. Changes to the temperature gradient (G) in response to the hatch length variation, influenced the G to growth rate (R) ratio and the product GxR, in agreement with the microstructures and textures formed. For the residual stress development, geometry of the part also played an important role. In summary, tailored isotropy could be induced in Inconel 718 by a careful selection of parameters during selective laser melting.},
  language  = {en}
}