High Temperature Oxidation of a Work Roll Grade High-Chromium White Cast Iron

2013 ◽  
Vol 20 (10) ◽  
pp. 122-129 ◽  
Author(s):  
J. H. Ramírez-Ramírez ◽  
R. Colás ◽  
N. F. Garza-Montes-de-Oca
Keyword(s):  
Cast Iron ◽  
High Temperature ◽  
High Temperature Oxidation ◽  
White Cast Iron ◽  
Work Roll ◽  
Temperature Oxidation ◽  
High Chromium

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.

Carbide Fragmentation and Dissolution in a High-Carbon High-Chromium Steel Using Hot Rolling Process: Microstructure Evolution, Wear, High-Temperature Oxidation, and Chloride-Induced Corrosion Properties

CORROSION ◽  
10.5006/2749 ◽  
2018 ◽  
Vol 74 (9) ◽  
pp. 958-970 ◽  
Author(s):  
Majid Shahsanaei ◽  
Sadegh Pour-Ali ◽  
Ali-Reza Kiani-Rashid ◽  
Sannakaisa Virtanen
Keyword(s):  
High Temperature ◽  
Corrosion Behavior ◽  
Hot Rolling ◽  
High Temperature Oxidation ◽  
Rolling Process ◽  
High Carbon ◽  
Corrosion Properties ◽  
Temperature Oxidation ◽  
High Chromium ◽  
Hot Rolling Process

A series of hot rolling processes with different reduction percentages (10%, 30%, and 50%) were applied to a high-carbon high-chromium tool steel (2HCTS). Microstructural evolutions, wear behavior, high-temperature oxidation, and aqueous corrosion properties were investigated. The results revealed the breakage and dissolution of primary carbides and a uniform carbide distribution after the hot rolling process. It was proposed that the presence of higher amounts of dissolved chromium in the hot rolled samples leads to the formation of Cr-rich oxides with more protection and less porosity at high temperatures, as well as an improved corrosion behavior in 3.5 wt% NaCl solution. This improvement in the corrosion behavior is not at the expense of the degradation of wear resistance. Probable mechanisms for carbides dissolution are also discussed.

Effect of Tempering on the Oxidation Resistance of a Work Roll Grade High-Chromium White Cast Iron

2013 ◽  
Vol 81 (3-4) ◽  
pp. 421-434
Author(s):  
J. H. Ramírez-Ramírez ◽  
R. Colás ◽  
N. F. Garza-Montes-de-Oca
Keyword(s):  
Cast Iron ◽  
Oxidation Resistance ◽  
White Cast Iron ◽  
Work Roll ◽  
High Chromium

scholarly journals Effect of molybdenum and chromium contents on sliding wear of high-chromium white cast iron at high temperature

2012 ◽  
Vol 25 (2) ◽  
pp. 153-162 ◽  
Author(s):  
Karin Faria Pinho ◽  
Christine Boher ◽  
Cherlio Scandian
Keyword(s):  
Cast Iron ◽  
High Temperature ◽  
Sliding Wear ◽  
White Cast Iron ◽  
High Chromium

Effects of Aluminizing on the High Temperature Oxidation Behavior of High Silicon Cast Iron

2009 ◽  
Vol 79-82 ◽  
pp. 2151-2154
Author(s):  
Meng Bin Lin ◽  
Chaur Jeng Wang
Keyword(s):  
Cast Iron ◽  
High Temperature ◽  
High Temperature Oxidation ◽  
Temperature Oxidation ◽  
Outward Diffusion ◽  
X Ray ◽  
Oxygen Penetration ◽  
Coating Layers ◽  
High Silicon ◽  
High Temperature Oxidation Behavior

In this study, the aluminizing of high silicon cast iron by hot-dipping in pure Al melt was performed and their high temperature oxidation behaviour was tested at 750 °C for virous exposure time. After high temperature oxidation tests, the microstructure analysis of all samples were investigated by means of metallographical examination, scanning electron microscopy (SEM) equipped with energy-dispersive X-ray spectrometer (EDS) and X-ray diffractometry (XRD).The results showed that the coating layers consisted of three layer, in the sequence of Al, Fe-Al and Si-rich layers from external topcoat to substrate. Nodules graphite had a blocking effect to retard the outward diffusion of Fe atoms and impeded the growth of Fe2Al5 in C-axis. Eventually, the cast iron substrate was oxidized directly by oxygen penetration via the greater cracks and pores to form Fe oxide nodules after 750 °C oxidation for 48h.

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