Effect of Heat Treatment on the Impact Toughness of ‘High-Chromium Cast Iron – Low Alloy Steel’ Bimetal Components

2017 ◽  
Vol 58 (11-12) ◽  
pp. 738-741 ◽  
Author(s):  
Z. Özdemir
Keyword(s):  
Heat Treatment ◽  
Cast Iron ◽  
Impact Toughness ◽  
Alloy Steel ◽  
Low Alloy Steel ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
The Impact ◽  
Chromium Cast Iron

Toughening Study on High Chromium Cast Iron Liner Plates of HZS Series Commercial Concrete Mixing Plant

2011 ◽  
Vol 179-180 ◽  
pp. 1338-1341
Author(s):  
Jiang Liu ◽  
Jun Fu
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Impact Toughness ◽  
Normal Operation ◽  
High Wear Resistance ◽  
Liner Material ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
The Impact ◽  
Chromium Cast Iron

Because of high wear resistance and low cost, high chromium cast iron liner plate is the most commonly used liner for HZS series concrete mixing station at present. However, in normal operation, the high-chromium cast iron liner produced by conventional casting process is easy to crack at its corners. We found that the cracking reasons of this type of liner plate are mainly the lower cast impact toughness, slightly higher hardness, and there has not gotten a good matching between the hard particles and the matrix organizations. Thus we used the secondary heat treatment to slightly reduce the hardness and increase the impact toughness of cast iron liner plate, which can improve the wear resistance and impact resistance of the liner material to extend the service life of these cast iron liners.

Analyzing on the Reasonable Composition of High-Chromium Alloy Cast Iron to Make the Mud Pump Shell of Dredger

2013 ◽  
Vol 734-737 ◽  
pp. 2465-2469
Author(s):  
Jun Yan ◽  
Hong Lu Bai ◽  
Jiao Liu ◽  
Da Jun Song
Keyword(s):  
Heat Treatment ◽  
Cast Iron ◽  
Heating Temperature ◽  
Treatment Method ◽  
Chromium Alloy ◽  
Wear Resistant ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
The Impact ◽  
Chromium Cast Iron

Chose high-chromium cast iron as the material to make the mud pump shell, the composition of high-chromium alloy has been optimized and five kinds of alloy ( A, B, C, D and E) are designed. Furthermore, using the heat treatment method of air-cooled quenching of 1040°C + 260°C tempering, the relationship among material hardness, the impact toughness and the heating temperature is analyzed after heat treatment. Finally, the abrasion performance of wear-resistant materials is tested. The test result shows that all kinds of wear-resistant materials display well anti-abrasion performance, where the material E has the best relative wear resistance and 19.3% higher than the imported pump casing material. The results provide a scientific standard for selecting the practical wear-resistant materials and locating the piece casting bivalve pump of Cr26 high-chromium cast iron.

Effect of heat treatment on the properties of high-chromium cast iron

1971 ◽  
Vol 13 (1) ◽  
pp. 69-71 ◽  
Author(s):  
M. N. Berkun ◽  
I. P. Volchok ◽  
I. V. Zhivitsa ◽  
V. I. Topal
Keyword(s):  
Heat Treatment ◽  
Cast Iron ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Chromium Cast Iron

scholarly journals Analysis of the High Chromium Cast Iron Microstructure after the Heat Treatment

2014 ◽  
Vol 14 (3) ◽  
pp. 43-46 ◽  
Author(s):  
D. Kopyciński ◽  
E. Guzik ◽  
D. Siekaniec ◽  
A. Szczęsny
Keyword(s):  
Heat Treatment ◽  
Cast Iron ◽  
Optical Microscope ◽  
Optimal Conditions ◽  
Chamber Furnace ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Different Temperatures ◽  
Engineering Alloys ◽  
Chromium Cast Iron

Abstract The article presents results of heat treatment on the high chromium cast iron. The study was carrying out on samples cut from the casting made from chromium cast iron. Those were hardened at different temperatures, then tempered and soft annealed. The heat treatment was performed in a laboratory chamber furnace in the Department of Engineering Alloys and Composites at Faculty of Foundry Engineering AGH. At each stage of the heat treatment the hardness was measured by Vickers and Rockwell methods, and the microscope images were done. Additionally based on images from the optical microscope the microstructure was assessed. Based on these results, the effect of hardening, tempering and soft annealing on the microstructure and hardness of high chromium cast iron was studied. Next the effects of different hardening temperatures on the properties of high chromium cast iron were compared. The study led to systemize the literature data of the parameters of heat treatment of high chromium cast iron, and optimal conditions for heat treatment was proposed for casts of similar properties and parameters.

scholarly journals Heat Treatment Effect on the Microstructure and Tribological Behaviour of a High Chromium Cast Iron with 0.5% of Niobium

2020 ◽  
Vol 60 (11) ◽  
pp. 2569-2575
Author(s):  
Leonardo Menezes de Faria ◽  
Ismael Nogueira Rabelo de Melo ◽  
Anderson Júnior dos Santos ◽  
Ivete Peixoto Pinheiro
Keyword(s):  
Heat Treatment ◽  
Cast Iron ◽  
Treatment Effect ◽  
Tribological Behaviour ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Chromium Cast Iron

Effects of Vanadium and Rare-Earth on Carbides and Properties of High Chromium Cast Iron

2008 ◽  
Vol 575-578 ◽  
pp. 1414-1419 ◽  
Author(s):  
Wen Min Zhao ◽  
Zhen Xu Liu ◽  
Zi Lai Ju ◽  
Bo Liao ◽  
Xue Guang Chen
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Rare Earth ◽  
Cast Iron ◽  
Treatment Technology ◽  
High Chromium ◽  
Shape Distribution ◽  
High Chromium Cast Iron ◽  
Heat Treatment Technology ◽  
Chromium Cast Iron

The type, shape and distribution of carbide take directly effect on the mechanical properties of high chromium castings. Vanadium is able to stabilize the structure of carbide in high chromium cast iron, meanwhile the hardness of carbide containing vanadium can reaches about 2800HV. In some cases, vanadium can also refine the microstructure. Rare-earth is able to change the shape of carbide in cast iron, refine the grain size of ferrite and improve the mechanical properties of castings. In this experiment, intention of adding vanadium and rare-earth is modification of mechanical properties with the proper heat treatment technology. With the help of SEM, the characteristics of carbide, such as shape, distribution and quantity can be observed and mechanical properties have been improved for better wear-resistance.

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