Effect of TiBAl inoculation on abrasive wear resistance of high Cr white cast iron

2019 ◽  
Vol 61 (7) ◽  
pp. 690-694
Author(s):  
Tanju Teker ◽  
S. Osman Yilmaz ◽  
Erhan Kerkut
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Abrasive Wear ◽  
White Cast Iron ◽  
Abrasive Wear Resistance

Analysis of the Structure and Abrasive Wear Resistance of White Cast Iron with Precipitates of Carbides

2013 ◽  
Vol 58 (3) ◽  
pp. 973-976 ◽  
Author(s):  
D. Kopyciński ◽  
M. Kawalec ◽  
A. Szczęsny ◽  
R. Gilewski ◽  
S. Piasny
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Abrasive Wear ◽  
Metal Matrix ◽  
White Cast Iron ◽  
Abrasive Wear Resistance ◽  
Operating Conditions ◽  
Metallographic Analysis ◽  
Abrasive Hardness ◽  
Resistance Tests

Abstract The resistance of castings to abrasive wear depends on the cast iron abrasive hardness ratio. It has been anticipated that the white cast iron structure will be changed by changing the type of metal matrix and the type of carbides present in this matrix, which will greatly expand the application area of castings under the harsh operating conditions of abrasive wear. Detailed metallographic analysis was carried out to see the structure obtained in selected types of white cast iron, i.e. with additions of chromium and vanadium. The study compares the results of abrasive wear resistance tests performed on the examined types of cast iron.

scholarly journals Microstructural evolution during austempering of a ASTM A-532 CLASS III type high chromium white cast iron undergoing abrasive wear

2017 ◽  
Vol 26 (46) ◽  
Author(s):  
Oscar Fabián Higuera-Cobos ◽  
Jeison Bucurú-Vasco ◽  
Andrés Felipe Loaiza-Patiño ◽  
Mónica Johanna Monsalve-Arias ◽  
Dairo Hernán Mesa-Grajales
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Cast Iron ◽  
Chemical Composition ◽  
Abrasive Wear ◽  
Retained Austenite ◽  
White Cast Iron ◽  
Abrasive Wear Resistance ◽  
Class Iii ◽  
High Chromium

This paper studies the influence of variables such as holding temperatures and times during austempering of High Chromium White Cast Iron (HCWCI), with the following chemical composition: Cr 25 %, C 3 %, Si 0.47 %, Mn 0.74 % and Mo 1.02 %. The aim of the austempering was to modify the percentage of retained austenite and its correlation to abrasive wear resistance under different conditions.Microhardness tests, SEM-EDS and XRD were performed to determine mechanical properties, chemical composition, and type of carbides and microstructures present, respectively. The tests complied with the ASTM G-65 standard. Results showed that the best performance against abrasion was achieved for austempering at 450 ºC with holding time of 6 hours.

scholarly journals Effect of Carbon Content on Heat Treatment Behavior of Multi-Alloyed White Cast Iron for Abrasive Wear Resistance

2015 ◽  
Vol 56 (5) ◽  
pp. 720-725 ◽  
Author(s):  
Jatupon Opapaiboon ◽  
Prasonk Sricharoenchai ◽  
Sudsakorn Inthidech ◽  
Yasuhiro Matsubara
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Cast Iron ◽  
Abrasive Wear ◽  
Carbon Content ◽  
White Cast Iron ◽  
Abrasive Wear Resistance

scholarly journals The Abrasive Wear Resistance of Chromium Cast Iron

2014 ◽  
Vol 14 (1) ◽  
pp. 63-66 ◽  
Author(s):  
D. Kopyciński ◽  
S. Piasny ◽  
M. Kawalec ◽  
A. Madizhanova
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Abrasive Wear ◽  
Metal Matrix ◽  
White Cast Iron ◽  
Abrasive Wear Resistance ◽  
Operating Conditions ◽  
Silica Sand ◽  
Chromium Cast Iron ◽  
Abrasive Hardness

Abstract The resistance of cast iron to abrasive wear depends on the metal abrasive hardness ratio. For example, hardness of the structural constituents of the cast iron metal matrix is lower than the hardness of ordinary silica sand. Also cementite, the basic component of unalloyed white cast iron, has hardness lower than the hardness of silica. Some resistance to the abrasive effect of the aforementioned silica sand can provide the chromium white cast iron containing in its structure a large amount of (Cr, Fe)7C3 carbides characterised by hardness higher than the hardness of the silica sand in question. In the present study, it has been anticipated that the white cast iron structure will be changed by changing the type of metal matrix and the type of carbides present in this matrix, which will greatly expand the application area of castings under the harsh operating conditions of abrasive wear. Moreover, the study compares the results of abrasive wear resistance tests performed on the examined types of cast iron. Tests of abrasive wear resistance were carried out on a Miller machine. Samples of standard dimensions were exposed to abrasion in a double to-and-fro movement, sliding against the bottom of a trough filled with an aqueous abrasive mixture containing SiC + distilled water. The obtained results of changes in the sample weight were approximated with a power curve and shown further in the study.

scholarly journals Effect of Chromium Content on Heat Treatment Behavior of Multi-Alloyed White Cast Iron for Abrasive Wear Resistance

2019 ◽  
Vol 60 (2) ◽  
pp. 346-354 ◽  
Author(s):  
Jatupon Opapaiboon ◽  
Mawin Supradist Na Ayudhaya ◽  
Prasonk Sricharoenchai ◽  
Sudsakorn Inthidech ◽  
Yasuhiro Matsubara
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Cast Iron ◽  
Abrasive Wear ◽  
White Cast Iron ◽  
Chromium Content ◽  
Abrasive Wear Resistance

scholarly journals Alloyed White Cast Iron with Precipitates of Spheroidal Vanadium Carbides VC

2012 ◽  
Vol 12 (4) ◽  
pp. 95-100 ◽  
Author(s):  
M. Kawalec ◽  
M. Górny
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Cast Iron ◽  
Master Alloy ◽  
Eutectic Composition ◽  
White Cast Iron ◽  
Base Alloy ◽  
Cast Steel ◽  
Abrasive Wear Resistance ◽  
Vanadium Carbides

Abstract The paper presents the results of tests on the spheroidising treatment of vanadium carbides VC done with magnesium master alloy and mischmetal. It has been proved that the introduction of magnesium master alloy to an Fe-C-V system of eutectic composition made 34% of carbides crystallise in the form of spheroids. Adding mischmetal to the base alloy melt caused 28% of the vanadium carbides crystallise as dendrites. In base alloy without the microstructure-modifying additives, vanadium carbides crystallised in the form of a branched fibrous eutectic skeleton. Testing of mechanical properties has proved that the spheroidising treatment of VC carbides in high-vanadium cast iron increases the tensile strength by about 60% and elongation 14 - 21 times, depending on the type of the spheroidising agent used. Tribological studies have shown that high-vanadium cast iron with eutectic, dendritic and spheroidal carbides has the abrasive wear resistance more than twice as high as the abrasion-resistant cast steel.

scholarly journals Effect of interaction between cementite and pearlite on two-body abrasive wear behaviors in white cast iron

Friction ◽  
2020 ◽  
Author(s):  
Baochao Zheng ◽  
Wei Li ◽  
Xiaohui Tu ◽  
Jiandong Xing ◽  
Suocheng Song
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Abrasive Wear ◽  
White Cast Iron ◽  
Wear Behavior ◽  
Interaction Mechanism ◽  
Wear Test ◽  
Wear Process ◽  
Cr Content ◽  
Contact Loads

AbstractThe wear interaction of cementite and pearlite in the white cast iron (WCI) was investigated using the two-body abrasive wear test under contact loads of 20, 35, and 50 N. The wear behavior, wear surface morphology, sub-surface structure, and wear resistance were evaluated using X-ray diffraction, microhardness testing, and nano-indentation. The results indicated that when the Cr content was increased from 0 to 4 wt%, there was a significant increase in the microhardness (H) and elasticity modulus (E) of the cementite. This yielded a 15.91%- and 23.6%-reduction in the degree of wear resistance and surface roughness, respectively. Moreover, no spalling and breaking of cementite was observed with increasing Cr content during the wear process, indicating improved wear resistance of the bulk cementite. In addition, the hard phase (cementite) and tough matrix (pearlite) composite structure exhibited a good protective and supporting effect. Thus, it was concluded that the interaction mechanism of the wear phase contributed to the reduction of the wear weight loss of the composite during the wear process. The contribution of the interaction between the hard wear-resistant phase and the tough phase in WCI to the wear resistance decreased with increasing hardness of the pearlite matrix.

scholarly journals Reinforcing cast iron with composite insert

2017 ◽  
Vol 62 (1) ◽  
pp. 355-357 ◽  
Author(s):  
A. Dulska ◽  
A. Studnicki ◽  
J. Szajnar
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Abrasive Wear ◽  
Molten Metal ◽  
Abrasive Wear Resistance ◽  
Ceramic Layer ◽  
Research Results ◽  
Ceramic Preform ◽  
Ceramic Insert

Abstract The paper presents a proprietary method of making composite cast iron (eutectic) locally reinforced with ceramics. The research included making casts with a ceramic layer, its percentage of the surface was 30%. The research included abrasive wear resistance according to ASTM G 65-00. As a result of the research it has been found that the infiltration of the molten metal into the ceramic preform mainly affects the correct production of the cast with local reinforcement. The research results also have proven that the application of a lattice ceramic insert placed in the mould is the most appropriate option, due to the even distribution of the particles in the cast and obtaining a sound cast.

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