caa a22 4500 463213963 CHVBK 20180405153150.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1007/s00339-006-3730-x doi (NATIONALLICENCE)springer-10.1007/s00339-006-3730-x Femtosecond laser-based fabrication of a new model material to study fracture [Elektronische Daten] [A. Weck, T.H.R. Crawford, A. Borowiec, D.S. Wilkinson, J.S. Preston] The ductile fracture process consists of the nucleation, growth and coalescence of voids in a material. Predictive models of ductility require a complete understanding of the coalescence event. However, coalescence occurs over very small strains and is therefore difficult to observe experimentally. We have addressed this by developing a new class of model material. It consists of femtosecond laser drilled holes and diffusion bonded metallic sheets, which can be mechanically tested in situ either by scanning electron microscopy (SEM) or by X-raycomputed tomography (XRCT). The fabrication steps are presented and the model material is characterized by optical and electron microscopy, nanoindentation and tomography. The heat affected zone around the laser holes is found to be harder than the unaffected material and consists of nano-scale grains. Finally we show that the coalescence event is well captured using both SEM and XRCT. The fabrication method is adaptable to a wide range of materials and enables one to produce 2D and 3D arrays of holes or cracks with controlled size, volume fraction and distribution. Springer-Verlag, 2006 Weck A. Department of Materials Science and Engineering, McMaster University, L8S 4L7, Hamilton, Ontario, Canada aut Crawford T.H.R. Department of Engineering Physics, McMaster University, L8S 4L7, Hamilton, Ontario, Canada aut Borowiec A. Department of Engineering Physics, McMaster University, L8S 4L7, Hamilton, Ontario, Canada aut Wilkinson D.S. Department of Materials Science and Engineering, McMaster University, L8S 4L7, Hamilton, Ontario, Canada aut Preston J.S. Department of Engineering Physics, McMaster University, L8S 4L7, Hamilton, Ontario, Canada aut Applied Physics A Springer-Verlag 86/1(2007-01-01), 55-61 0947-8396 86:1<55 2007 86 339 https://doi.org/10.1007/s00339-006-3730-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00339-006-3730-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Weck A. Department of Materials Science and Engineering, McMaster University, L8S 4L7, Hamilton, Ontario, Canada aut NATIONALLICENCE 700 1- Crawford T.H.R. Department of Engineering Physics, McMaster University, L8S 4L7, Hamilton, Ontario, Canada aut NATIONALLICENCE 700 1- Borowiec A. Department of Engineering Physics, McMaster University, L8S 4L7, Hamilton, Ontario, Canada aut NATIONALLICENCE 700 1- Wilkinson D.S. Department of Materials Science and Engineering, McMaster University, L8S 4L7, Hamilton, Ontario, Canada aut NATIONALLICENCE 700 1- Preston J.S. Department of Engineering Physics, McMaster University, L8S 4L7, Hamilton, Ontario, Canada aut NATIONALLICENCE 773 0- Applied Physics A Springer-Verlag 86/1(2007-01-01), 55-61 0947-8396 86:1<55 2007 86 339 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer