Effect of Mo and B on the structure and properties of high chromium cast iron surfacing metal

Abstract The paper presents results of Ti-addition to High Chromium Cast Iron (HCCI) on the structure and selected mechanical properties. For this study casted two sets of cylinders with dimensions ø20 mm, ø15 mm × 250 mm, for the High Chromium Cast Iron (HCCI) and with the 4% by mass Ti-addition. Melts were performed in the induction furnace crucible capacity of 15 kg. During the heats the cup with installed S type thermocouple was poured to record the cooling curves. The cylinders were subjected to the static bending strength test. Samples for the test microstructure and Rockwell hardness were cut from the cylinders. The study shows that the addition of titanium had an impact on the structure and thus the properties of High Chromium Cast Iron (HCCI). In subsequent studies, through an appropriate choice of chemical composition and proper process control, it is planned to obtain in the structure the titanium carbides TiC and chromium carbides with type (Cr, Fe)7C3.

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Hot compression deformation and microstructure evolution of high chromium cast iron based on canning compression

Journal of Materials Science ◽

10.1007/s10853-021-06379-y ◽

2021 ◽

Author(s):

Yanwei Li ◽

Xiaogang Wang ◽

Guofeng Yuan ◽

Peisheng Han ◽

Xiaoyu Zhu

Keyword(s):

Cast Iron ◽

Microstructure Evolution ◽

Hot Compression ◽

High Chromium ◽

Hot Compression Deformation ◽

High Chromium Cast Iron ◽

Compression Deformation ◽

Iron Based ◽

Chromium Cast Iron

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The influence of retained austenite in high chromium cast iron on impact-abrasive wear

Wear ◽

10.1016/0043-1648(90)90026-7 ◽

1990 ◽

Vol 135 (2) ◽

pp. 217-226 ◽

Cited By ~ 22

Author(s):

Tong Jian-Min ◽

Zhou Yi-Zhong ◽

Shen Tian-Yi ◽

Deng Hai-Jin

Keyword(s):

Cast Iron ◽

Abrasive Wear ◽

Retained Austenite ◽

High Chromium ◽

High Chromium Cast Iron ◽

Chromium Cast Iron

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Modeling Corrosion Property of High Chromium Cast Iron under H3PO4 Medium Condition Using Artificial Intelligence

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.150-151.1054 ◽

2010 ◽

Vol 150-151 ◽

pp. 1054-1057

Author(s):

Song Min Zhang ◽

Liu Jie Xu

Keyword(s):

Neural Network ◽

Weight Loss ◽

Cast Iron ◽

Bp Neural Network ◽

Corrosion Property ◽

Corrosion Properties ◽

High Chromium ◽

High Chromium Cast Iron ◽

Chromium Cast Iron ◽

Corrosion Time

The components in slurry pump suffer serious corrosion and abrasion in the phosphorus fertilizer manufacturing process because they undergo corrosion of H3PO4 medium and impact of particles at the same time. Presently, High chromium cast irons are often used to produce the components in slurry pump. In order to reveal the corrosive law, the corrosion properties of high chromium cast iron with 26wt.%Cr content (Cr26) were tested under different H3PO4 medium concentration conditions. Using back-propagation (BP) neural network, the non-linear relationship between the corrosion weight losses (W) and H3PO4 concentration, corrosion time (C, t) is established on the base of the dealing with experimental data. The results show that the well-trained BP neural network can predict the wear weight loss precisely according to H3PO4 concentration and corrosion time. The prediction results reveal that corrosion weight loss rises linearly with increasing corrosion time. The H3PO4 concentration has obvious effect on corrosion property. When H3PO4 concentration is lower than about 0.5mol/L, high chromium cast iron has well resistance to H3PO4 corrosion. However, the corrosion resistance of high chromium cast iron rapidly decreases when the H3PO4 concentration exceed about 0.8 mol/L. It is suggest the high chromium cast iron be used under the condition of H3PO4 concentration of lower 0.8 mol/L.

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