naa a22 4500 51076990X CHVBK 20180411083210.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11837-013-0594-3 doi (NATIONALLICENCE)springer-10.1007/s11837-013-0594-3 Advances in Laser Surface Engineering: Tackling the Cracking Problem in Laser-Deposited Ni-Cr-B-Si-C Alloys [Elektronische Daten] [I. Hemmati, V. Ocelík, J. De Hosson] Laser-deposition technologies are being increasingly used for surface modification and three-dimensional manufacturing applications. The biggest technical obstacle to a wider usage of these technologies especially for deposition of hard alloys is cracking of the deposited samples. In this work, the idea of microstructural refinement as a toughening mechanism for Ni-Cr-B-Si-C alloys deposited by laser cladding is evaluated and a new idea for reducing the cracking tendency of these alloys is proposed. The results show that although a significant refinement of the Cr-rich precipitates in these alloys could be induced by a suitable addition of Nb, the cracking susceptibility of the deposits was unchanged. This was so because the continuous network of hard eutectics was still providing an easy route for crack growth. The outcome of this work shows that an effective toughening mechanism for these alloys should include not only a refinement of the hard precipitates but also modification of the eutectic structure. TMS, 2013 Hemmati I. Materials Innovation Institute (M2i), Department of Applied Physics, University of Groningen, Nijenborgh 4, 9474 AG, Groningen, The Netherlands aut Ocelík V. Materials Innovation Institute (M2i), Department of Applied Physics, University of Groningen, Nijenborgh 4, 9474 AG, Groningen, The Netherlands aut De Hosson J. Materials Innovation Institute (M2i), Department of Applied Physics, University of Groningen, Nijenborgh 4, 9474 AG, Groningen, The Netherlands aut JOM Springer US; http://www.springer-ny.com 65/6(2013-06-01), 741-748 1047-4838 65:6<741 2013 65 11837 https://doi.org/10.1007/s11837-013-0594-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11837-013-0594-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hemmati I. Materials Innovation Institute (M2i), Department of Applied Physics, University of Groningen, Nijenborgh 4, 9474 AG, Groningen, The Netherlands aut NATIONALLICENCE 700 1- Ocelík V. Materials Innovation Institute (M2i), Department of Applied Physics, University of Groningen, Nijenborgh 4, 9474 AG, Groningen, The Netherlands aut NATIONALLICENCE 700 1- De Hosson J. Materials Innovation Institute (M2i), Department of Applied Physics, University of Groningen, Nijenborgh 4, 9474 AG, Groningen, The Netherlands aut NATIONALLICENCE 773 0- JOM Springer US; http://www.springer-ny.com 65/6(2013-06-01), 741-748 1047-4838 65:6<741 2013 65 11837 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer