WITHDRAWN: Wear resistance of nanostructured Cr-based WC hardmetals sintered by spark plasma sintering

2020 ◽  
Vol 87 ◽  
pp. 105121
Author(s):  
Xiangxing Deng ◽  
Núria Cinca ◽  
Dariusz Garbiec ◽  
José Manuel Torralba ◽  
Andrea García-Junceda
Keyword(s):  
Wear Resistance ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Spark Plasma

Effect of processing conditions on the sliding-wear resistance of ZrC triboceramics fabricated by spark-plasma sintering

2015 ◽  
Vol 41 (10) ◽  
pp. 15278-15282 ◽  
Author(s):  
Davide Bertagnoli ◽  
Oscar Borrero-López ◽  
Fernando Rodríguez-Rojas ◽  
Fernando Guiberteau ◽  
Angel L. Ortiz
Keyword(s):  
Wear Resistance ◽  
Spark Plasma Sintering ◽  
Sliding Wear ◽  
Processing Conditions ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Tribological Characterization of Micron-/Nano-Sized WC-9%Co Cemented Carbides Prepared by Spark Plasma Sintering at Elevated Temperatures

Materials ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 920 ◽  
Author(s):  
Saleh Wohaibi ◽  
Abdul Mohammed ◽  
Tahar Laoui ◽  
Abbas Hakeem ◽  
Akeem Adesina ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Spark Plasma Sintering ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Normal Load ◽  
Cemented Carbide ◽  
Plasma Sintering ◽  
Dry Conditions ◽  
Spark Plasma ◽  
Track Area

The present study investigates the high temperature tribological performance of spark plasma sintered, nano- and micron-sized tungsten carbide (WC) bonded by 9 wt.% cobalt (Co). The composites were fabricated using a two-step procedure of mixing followed by spark plasma sintering (SPS). Ball-on-disc wear tests were conducted at a normal load of 30 N, linear speed of 0.1 m/s under dry conditions and at three different temperatures (room temperature, 300 °C and 600 °C). Field emission scanning electron microscopy (FESEM), optical profilometry and energy dispersive X-ray (EDS) spectroscopy were used to analyze the surface morphology and the wear track area. At room temperature, it was observed that the nano-sized WC composites exhibited better wear resistance than the micron-sized WC composites. The wear resistance of the nano-sized samples declined significantly relative to that of the micron-sized samples with an increase in temperature. This decline in performance was attributed to the higher surface area of nano-sized WC particles, which underwent rapid oxidation at elevated temperatures, resulting in poor wear resistance. The wear rate observed at 600 °C for the micron-sized WC composites was 75% lower than that of the nano-sized cemented carbide. Oxidative wear was observed to be the predominant wear mechanism for both cemented carbide samples at elevated temperatures.

Sliding-wear resistance of ultrafine-grained SiC densified by spark plasma sintering with 3Y2O3+5Al2O3 or Y3Al5O12 additives

2013 ◽  
Vol 69 (8) ◽  
pp. 598-601 ◽  
Author(s):  
Esther Ciudad ◽  
Estíbaliz Sánchez-González ◽  
Oscar Borrero-López ◽  
Fernando Guiberteau ◽  
Mats Nygren ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Spark Plasma Sintering ◽  
Sliding Wear ◽  
Plasma Sintering ◽  
Ultrafine Grained ◽  
Spark Plasma

scholarly journals Effect of Nickel and Titanium on Properties of Fe-Al-Si Alloy Prepared by Mechanical Alloying and Spark Plasma Sintering

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 800
Author(s):  
Pavel Novák ◽  
Zdeněk Barták ◽  
Kateřina Nová ◽  
Filip Průša
Keyword(s):  
Wear Resistance ◽  
Mechanical Alloying ◽  
Spark Plasma Sintering ◽  
Oxidation Behavior ◽  
Structure And Properties ◽  
Temperature Oxidation ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
High Temperature Oxidation Behavior ◽  
Alloy Titanium

This paper describes the structure and properties of an innovative Fe-Al-Si alloy with a reduced amount of silicon (5 wt. %) in order to avoid excessive brittleness. The alloy was produced by a combination of mechanical alloying and spark plasma sintering. Nickel and titanium were independently tested as the alloying elements for this alloy. It was found that wear resistance, which reached values comparable with tool steels, could be further improved by the addition of nickel. Nickel also improved the high-temperature oxidation behavior, because it lowers the liability of the oxide layers to spallation. Both nickel and titanium increased the hardness of the alloy. Titanium negatively influenced oxidation behavior and wear resistance because of the presence of titanium dioxide in the oxide layer and the brittle silicides that caused chipping wear, respectively.

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