scholarly journals Cavitation Erosion of Nodular Cast Iron − Microstructural Effects

2017 ◽  
Vol 17 (4) ◽  
pp. 119-122 ◽  
Author(s):  
A.W. Orłowicz ◽  
M. Mróz ◽  
M. Tupaj ◽  
A. Trytek ◽  
M. Jacek ◽  
...  
Keyword(s):  
Cast Iron ◽  
Cavitation Erosion ◽  
Nodular Cast Iron ◽  
Vibration Exciter ◽  
Matrix Component ◽  
Ferritic Matrix ◽  
Microstructural Effects

Abstract The paper deals with susceptibility of nodular cast iron with ferritic-pearlitic matrix on cavitation erosion. Cavitation tests were carried out with the use of a cavitation erosion vibratory apparatus employing a vibration exciter operated at frequency of 20 kHz. The study allowed to determine the sequence of subsequent stages in which microstructure of cast iron in superficial regions is subject to degradation. The first features to be damaged are graphite precipitates. The ferritic matrix of the alloy turned out to be definitely less resistant to cavitation erosion compared to the pearlitic matrix component.

scholarly journals Investigations of Ferritic Nodular Cast Iron Containing About 5-6% Aluminium

2016 ◽  
Vol 16 (4) ◽  
pp. 141-146 ◽  
Author(s):  
M.S. Soiński ◽  
P. Kordas ◽  
K. Skurka ◽  
A. Jakubus
Keyword(s):  
Cast Iron ◽  
Nodular Cast Iron ◽  
Cast State ◽  
Ferritic Matrix ◽  
Laboratory Conditions

Abstract The work presents results of investigations concerning the production of cast iron containing about 5-6% aluminium, with the ferritic matrix in the as-cast state and nodular or vermicular graphite precipitates. The examined cast iron came from six melts produced under the laboratory conditions. It contained aluminium in the amount of 5.15% to 6.02% (carbon in the amount of 2.41% to 2.87%, silicon in the amount of 4.50% to 5.30%, and manganese in the amount of 0.12% to 0.14%). After its treatment with cerium mixture and graphitization with ferrosilicon (75% Si), only nodular and vermicular graphite precipitates were achieved in the examined cast iron. Moreover, it is possible to achieve the alloy of pure ferritic matrix, even after the spheroidizing treatment, when both the aluminium and the silicon occur in cast iron in amounts of about 5.2÷5.3%.

Ultrasonic cavitation erosion of nodular cast iron with ferrite–pearlite microstructure

2015 ◽  
Vol 23 ◽  
pp. 385-390 ◽  
Author(s):  
Ion Mitelea ◽  
Ilare Bordeaşu ◽  
Marius Pelle ◽  
Corneliu Crăciunescu
Keyword(s):  
Cast Iron ◽  
Cavitation Erosion ◽  
Nodular Cast Iron ◽  
Ultrasonic Cavitation ◽  
Ultrasonic Cavitation Erosion

Gray Cast Iron Behavior in Cavitation Erosion

2014 ◽  
Vol 782 ◽  
pp. 269-274 ◽  
Author(s):  
Cinca Ionel Lupinca ◽  
Marian Dumitru Nedeloni ◽  
Dorian Nedelcu
Keyword(s):  
Cast Iron ◽  
Cavitation Erosion ◽  
Gray Cast Iron ◽  
Erosion Resistance ◽  
Nodular Cast Iron ◽  
Gray Cast ◽  
Spheroidal Graphite ◽  
Flake Graphite ◽  
Cast Irons ◽  
Cavitation Erosion Resistance

The paper presents the cavitation stand used, the work methodology, the trials realized on specimens of gray cast irons, with flake graphite and spheroidal-graphite, which were tested for cavitation erosion during different periods of time of the cavitation attack. Finally, the conclusions were interpreted on the basis of comparative graphics realized at the macro and microstructures level obtained for these two types of cast iron. Of the two types of gray cast iron, the nodular cast iron presents a better cavitation erosion resistance.

Effective properties of nodular cast-iron: A multi-scale computational approach

2014 ◽  
Vol 82 ◽  
pp. 378-390 ◽  
Author(s):  
F.D. Carazo ◽  
S.M. Giusti ◽  
A.D. Boccardo ◽  
L.A. Godoy
Keyword(s):  
Cast Iron ◽  
Effective Properties ◽  
Nodular Cast Iron ◽  
Computational Approach ◽  
Multi Scale
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