A study of high chromium cast iron on abrasion resistance and impact fatigue resistance

Wear ◽  
1990 ◽  
Vol 138 (1-2) ◽  
pp. 47-60 ◽  
Author(s):  
X.H. Fan ◽  
L. He ◽  
Q.D. Zhou
Keyword(s):  
Cast Iron ◽  
Fatigue Resistance ◽  
Abrasion Resistance ◽  
Impact Fatigue ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Chromium Cast Iron

scholarly journals Research on the properties of high chromium cast iron overlay welds deposited by tubular electrodes

2018 ◽  
Vol 90 (10) ◽  
Author(s):  
Michał Szymura ◽  
Artur Czupryński ◽  
Maciej Różański
Keyword(s):  
Cast Iron ◽  
Tungsten Carbide ◽  
Abrasion Resistance ◽  
Alloy Matrix ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Hardness Tests ◽  
Chromium Cast Iron ◽  
Carbide Particles

In the paper, there were shown the results of research on the properties of overlay welds consisted of one and three layers deposited by three types of tubular electrodes of the Fe-Cr-C alloy, Fe-Cr-C-Nb-Mo-W-V alloy and composite consist of tungsten carbide particles in the Fe-Cr-C alloy matrix. The study of hardfacing deposits included: test of met- al-mineral abrasion resistance, metallographic examinations, analysis of chemical compo- sition, and hardness tests. The test of abrasive usage in metal-mineral friction was made according to the procedure A of the ASTM G 65 standard.

scholarly journals Improvement of abrasive wear resistance of the high chromium cast iron ASTM A-532 through thermal treatment cycles

2016 ◽  
Vol 25 (41) ◽  
pp. 93 ◽  
Author(s):  
Oscar Fabián Higuera-Cobos ◽  
Florina-Diana Dumitru ◽  
Dairo Hernán Mesa-Grajales
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Abrasion Resistance ◽  
Retained Austenite ◽  
White Cast Iron ◽  
High Wear Resistance ◽  
Air Cooling ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Chromium Cast Iron

<p>High-Chromium White Cast Iron is a material highly used in mining and drilling shafts for oil extraction, due to its high wear resistance. However, because of the austenitic matrix found in the as-cast state, an adequate heat treatment cycle is necessary. This paper studies the effects of different cooling media after a destabilization treatment on the microstructure, hardening and abrasion resistance behaviors of a hypoeutectic high chromium white cast iron. The results show that although air cooling followed by immersion in CO2 can effectively reduce the retained austenite, this is not enough to transform completely the retained austenite into martensite. The low retained austenite percentages improve bulk hardness, but they decrease the abrasion resistance of the high chromium cast iron. The best combination of hardness and wear resistance was found in the samples cooled in air, due to the percentage of retained austenite and a moderate precipitation of chromium carbide.</p>

scholarly journals Abrasion Wear Behavior of High-chromium Cast Iron

2016 ◽  
Vol 16 (2) ◽  
pp. 69-74 ◽  
Author(s):  
M. Pokusová ◽  
A. Brúsilová ◽  
Ľ. Šooš ◽  
I. Berta
Keyword(s):  
Cast Iron ◽  
Abrasion Resistance ◽  
Wear Behavior ◽  
Cutting Tools ◽  
Cast Irons ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Heat Treated ◽  
The Matrix ◽  
Chromium Cast Iron

Abstract High-chromium cast irons are used as abrasion resistant materials. Their wear resistance depends on quantity of carbides and the matrix supporting these carbides. The paper presents the results of cast irons of chemical composition (in wt. %) 19–22 Cr and 2–4.5 C alloyed by 1.7 Mo + 5 Ni + 2 Mn to improve their toughness, which were tested in working conditions of ferroalloys crushing. Tests showed that these as-cast chromium cast irons with mostly austenitic matrix achieved the hardness of 38-45 HRC, but their relative abrasion resistance Ψ ranged from 1.3 to 4.6, was higher comparing to the tool made from the X210Cr12 steel heat treated on hardness 61 HRC. The transformation of austenite into martensite occurs not only at the worn strained areas (on a surface of scratch) but also in their neighbourhood. Due to the work hardening of relatively large volumes of transformed austenite the cast iron possesses high abrasion resistance also on the surfaces where low pressures are acting. The tough abrasion-resistant cast iron well proved for production of dynamic and wear stressed castings e.g., crusher hammers, cutting tools for ceramic etc.

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