High temperature abrasive wear behavior of an as-cast ductile iron

Wear ◽  
2005 ◽  
Vol 258 (1-4) ◽  
pp. 189-193 ◽  
Author(s):  
Ozgur Celik ◽  
Hayrettin Ahlatci ◽  
E. Sabri Kayali ◽  
Huseyin Cimenoglu
Author(s):  
T. R. Uma ◽  
J. B. Simha ◽  
K. Narasimha Murthy

Laboratory abrasive wear tests have been reported on permanent moulded toughened austempered ductile iron. The influence of austempering temperature on the abrasive wear behavior have been studied and discussed. The results indicate that with increase in austempering temperature from 300°C to 350°C, the abrasive wear resistance increased, and as the austempering temperature increased to 400°C, there was reduction in the abrasive wear resistance. These results have been interpreted based on the structural features and graphite morphology.


2016 ◽  
Vol 68 (4) ◽  
pp. 476-481 ◽  
Author(s):  
Harun Mindivan

Purpose This study aims to investigate the microstructure and the abrasive wear features of the untreated and pack borided GGG 50 quality ductile iron under various working temperatures. Design/methodology/approach GGG 50 quality as-cast ductile iron samples were pack borided in Ekabor II powder at 900°C for 3 h, followed by furnace cooling. Structural characterization was made by optical microscopy. Mechanical characterization was made by hardness and pin-on-disc wear test. Pin-on-disc test was conducted on a 240-mesh Al2O3 abrasive paper at various temperatures in between 25 and 450°C. Findings Room temperature abrasive wear resistance of the borided ductile iron increased with an increase in its surface hardness. High-temperature abrasive wear resistances of the borided ductile iron linearly decreased with an increase in test temperature. However, the untreated ductile iron exhibited relatively high resistance to abrasion at a temperature of 150°C. Originality/value This study can be a practical reference and offers insight into the effects of boriding process on the increase of room temperature wear resistance. However, above 150°C, the untreated ductile iron exhibited similar abrasive wear performance as compared to the borided ductile iron.


Wear ◽  
2019 ◽  
Vol 440-441 ◽  
pp. 203065 ◽  
Author(s):  
Amanda Souza Oliveira Pimentel ◽  
Wilson Luiz Guesser ◽  
William José Rodrigues Custódio da Silva ◽  
Pedro Dolabella Portella ◽  
Mathias Woydt ◽  
...  

Wear ◽  
2015 ◽  
Vol 330-331 ◽  
pp. 250-260 ◽  
Author(s):  
Ronaldo Câmara Cozza ◽  
Lucas Cremonese Rodrigues ◽  
Cláudio Geraldo Schön

Wear ◽  
2010 ◽  
Vol 268 (1-2) ◽  
pp. 153-165 ◽  
Author(s):  
Yusuf Sahin ◽  
Volkan Kilicli ◽  
Melika Ozer ◽  
Mehmet Erdogan

MRS Advances ◽  
2020 ◽  
Vol 5 (59-60) ◽  
pp. 3077-3089
Author(s):  
Alexeis Sánchez ◽  
Arnoldo Bedolla-Jacuinde ◽  
Francisco V. Guerra ◽  
I. Mejía

AbstractFrom the present study, vanadium additions up to 6.4% were added to a 14%Cr-3%C white iron, and the effect on the microstructure, hardness and abrasive wear were analysed. The experimental irons were melted in an open induction furnace and cast into sand moulds to obtain bars of 18, 25, and 37 mm thickness. The alloys were characterized by optical and electronic microscopy, and X-ray diffraction. Bulk hardness was measured in the as-cast conditions and after a destabilization heat treatment at 900°C for 45 min. Abrasive wear resistance tests were undertaken for the different irons according to the ASTM G65 standard in both as-cast and heat-treated conditions under a load of 60 N for 1500 m. The results show that, vanadium additions caused a decrease in the carbon content in the alloy and that some carbon is also consumed by forming primary vanadium carbides; thus, decreasing the eutectic M7C3 carbide volume fraction (CVF) from 30% for the base iron to 20% for the iron with 6.4%V;but overall CVF content (M7C3 + VC) is constant at 30%. Wear behaviour was better for the heat-treated alloys and mainly for the 6.4%V iron. Such a behaviour is discussed in terms of the CVF, the amount of vanadium carbides, the amount of martensite/austenite in matrix and the amount of secondary carbides precipitated during the destabilization heat treatment.


Wear ◽  
2009 ◽  
Vol 266 (9-10) ◽  
pp. 995-1002 ◽  
Author(s):  
K. Venkateswarlu ◽  
V. Rajinikanth ◽  
T. Naveen ◽  
Dhiraj Prasad Sinha ◽  
Atiquzzaman ◽  
...  

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