TY - GEN
T1 - Evaluation of brittle layers obtained by bonding on AISI H13 steels
AU - Lopez-Perrusquia, N.
AU - Campos-Silva, I.
AU - MartInez-Trinidad, J.
AU - Avilés, A.
AU - Alvárez-Castañeda, E.
AU - Juárez-Torres, S.
N1 - Funding Information:
The work described in this article makes up part of sub-project A3 of the research project concerning "environmentally compatible tribosystems by means of suitable composites and precursor materials, using the machine tool as an example" conducted by collaborative research centre 442 at the Institute of Fluid Power Drives and Controls (IFAS) at RWTH Aachen University. This collaborative research centre is sponsored by the German Research Committee (DFG) and the authors would like to thank the DFG for its financial support.
PY - 2009
Y1 - 2009
N2 - The fracture toughness of AISI Hi 3 bonded steel and the strength adhesion of the coated system were estimated in the present work. The formation of the layers was carried out by the powder pack bonding process at 1273 K with 8 h of treatment. The fracture toughness (Kc) of the layer is estimated at 25 and 45 urn from the surface using four different Vickers indentation loads. The Kc values were estimated by the extension of Palmqvist cracks parallel and perpendicular to the surface obtained at the indentation corners. The adherence of the layer/substrate was evaluated in qualitative form through the Rockwell-C indentation technique. The results obtained by both techniques, show, in first instance, that the fracture toughness of the boride layer can be expressed in the form (Kc (π/2) > (Kc)> (Kc) (0). Also, high delamination is obtained around the Rockwell-C indentation prints that denote poor adhesion in the coating-substrate interface.
AB - The fracture toughness of AISI Hi 3 bonded steel and the strength adhesion of the coated system were estimated in the present work. The formation of the layers was carried out by the powder pack bonding process at 1273 K with 8 h of treatment. The fracture toughness (Kc) of the layer is estimated at 25 and 45 urn from the surface using four different Vickers indentation loads. The Kc values were estimated by the extension of Palmqvist cracks parallel and perpendicular to the surface obtained at the indentation corners. The adherence of the layer/substrate was evaluated in qualitative form through the Rockwell-C indentation technique. The results obtained by both techniques, show, in first instance, that the fracture toughness of the boride layer can be expressed in the form (Kc (π/2) > (Kc)> (Kc) (0). Also, high delamination is obtained around the Rockwell-C indentation prints that denote poor adhesion in the coating-substrate interface.
KW - Adherence
KW - Boride layers
KW - Microindentation fracture toughness
KW - Pack powder bonding
KW - Palmqvist cracks
UR - http://www.scopus.com/inward/record.url?scp=70349270707&partnerID=8YFLogxK
M3 - Contribución a la conferencia
SN - 9780878493302
T3 - Advanced Materials Research
SP - 47
EP - 52
BT - 17th International Materials Research Congress; from the 17th International Materials Research Congress, Symposium 11, Fracture Mechanics
T2 - 9th Edition of the Symposium Fracture Mechanics; Held within the Activities of the 17th International Materials Research Congress, IMRC
Y2 - 18 August 2008 through 21 August 2008
ER -