RT Journal Article
T1 Mechanical properties of layers obtained by DC-pulsed plasma nitriding on a low-alloy steel (AISI 4140)
A1 Dutrey, Luciano
A1 De Heras, Evangelina Las
A1 Svoboda, Hernán G.
A1 Corengia, Pablo A.
AB An industrial DC-pulsed plasma nitriding (DCPPN) equipment was used to obtain samples of an AISI 4140 low-alloy steel with five different configurations: substrate, substrate + diffusion zone, diffusion zone, substrate + diffusion zone + compound layer, and diffusion zone + compound layer. The microstructures of the samples were investigated by scanning electron microscopy and X-ray diffraction. Microhardness and tensile tests were performed, and the fracture mechanisms for the different materials were finally analyzed and discussed. The DCPPN produced an increase in the elastic modulus as well as in the yield strengths, together with a pronounce ductility loss, associated to the brittle intergranular fracture surface due to the nitride precipitation in the grain boundaries.
SN 1612-8850
YR 2009
FD 2009
LK https://hdl.handle.net/11556/4500
UL https://hdl.handle.net/11556/4500
LA eng
NO Dutrey , L , De Heras , E L , Svoboda , H G & Corengia , P A 2009 , ' Mechanical properties of layers obtained by DC-pulsed plasma nitriding on a low-alloy steel (AISI 4140) ' , Plasma Processes and Polymers , vol. 6 , no. SUPPL. 1 , pp. S314-S320 . https://doi.org/10.1002/ppap.200932404
DS TECNALIA Publications
RD 30 jul 2024