Effects of high temperature and cryogenic treatment on the microstructure and abrasion resistance of a high chromium cast iron

2009 ◽  
Vol 209 (7) ◽  
pp. 3236-3240 ◽  
Author(s):  
Jun Wang ◽  
Ji Xiong ◽  
Hongyuan Fan ◽  
Hong-Shan Yang ◽  
Hao-Huai Liu ◽  
...  
Keyword(s):  
Cast Iron ◽  
High Temperature ◽  
Abrasion Resistance ◽  
Cryogenic Treatment ◽  
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 The casting process and high temperature oxidation resistance of high chromium cast iron grate bar

2019 ◽  
Vol 39 (1) ◽  
pp. 29-36
Author(s):  
Chen Zhiru ◽  
Xu Lei ◽  
Zhao Linwei ◽  
Wang Youchao ◽  
Li Changyun ◽  
...  
Keyword(s):  
Cast Iron ◽  
High Temperature ◽  
Oxidation Resistance ◽  
High Temperature Oxidation ◽  
Casting Process ◽  
Shrinkage Cavity ◽  
Temperature Oxidation ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Chromium Cast Iron

The solidification process of a high chromium cast iron grate bar used for sinter machine was simulated, and high temperature oxidation resistance was also investigated. The simulation result shows that sequence solidification can be achieved and no shrinkage cavity and porosity were observed. Based on the analysis of the microstructure, it could be known that the grate bar was well protected by the Fe3O4、Fe2O3 and Cr2O3 oxide films at temperatures lower than 800°C.

Effects of deep cryogenic treatment on property of 3Cr13Mo1V1.5 high chromium cast iron

2007 ◽  
Vol 28 (3) ◽  
pp. 1059-1064 ◽  
Author(s):  
Hao-huai Liu ◽  
Jun Wang ◽  
Bao-luo Shen ◽  
Hong-shan Yang ◽  
Sheng-ji Gao ◽  
...  
Keyword(s):  
Cast Iron ◽  
Cryogenic Treatment ◽  
Deep Cryogenic Treatment ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Chromium Cast Iron

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>

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