TY  - JOUR
TI  - Friction and Wear Properties of T6 Treatment And As-Plated Duplex NiP/NiB Coatings on Az91d Magnesium Alloy
AB  - Electroless nickel coatings can be preferred in wear resistant applications like firearms with goodlubricity properties. In this study, a widely-used magnesium alloy, AZ91D both as-cast and precipitationhardenedconditions were coated with nickel phosphorus/nickel boron duplex coatings by the electrolessdeposition method. Solution treatment (W) of the alloy was carried out at 415 °C for 22 h in carbon powderfollowed by water quenched at 25 °C. Aging treatment (T6) of the solution-treated samples was performed at216 °C for 6 h. The microstructures, elemental distributions and phase analysis of the obtained coatings werecharacterized by scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDS) and X-raydiffraction (XRD) analysis. According to the XRD analysis, the obtained coatings have an amorphouscharacter and subsequent to this, a crystallization process to the sample is carried out at 350 °C. The frictionand wear properties of the coating are studied by means of ball-on-disc experiments at room temperatureunder 10N applied loads at 0.1 m/s sliding speed using alumina balls as counterparts. The friction coefficientof the sample was compared with each other from friction coefficient-distance graphics. The wear rates weredetermined by measuring the depth of the track with an 3D-optical microscope (3D-OM). Characterization ofthe wear tracks was performed by SEM and EDS.
AU  - SEN, UGUR
AU  - uçar, kübra
DO  - 10.31202/ecjse.450204
PY  - 2019
JO  - El-Cezerî Journal of Science and Engineering
VL  - 6
IS  - 1
SN  - 2148-3736
SP  - 31
EP  - 42
DB  - TRDizin
UR  - http://search/yayin/detay/386029
ER  -