Radiothermal treatment of white chromium cast iron

1963 ◽  
Vol 5 (11) ◽  
pp. 651-653
Author(s):  
V. A. Shalashov
Keyword(s):  
Cast Iron ◽  
Chromium Cast Iron ◽  
White Chromium

scholarly journals Bifilm Defects in Ti-Inoculated Chromium White Cast Iron

Materials ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3124
Author(s):  
Malwina Dojka ◽  
Marcin Stawarz
Keyword(s):  
Cast Iron ◽  
White Cast Iron ◽  
Crystallization Front ◽  
Point Of View ◽  
Austenitic Matrix ◽  
Wear Properties ◽  
The Impact ◽  
Chromium Cast Iron ◽  
Titanium Compounds ◽  
White Chromium

In recent years, white chromium cast iron has gained a well-settled position among wear-resistant materials. In recent times, chromium cast iron samples containing titanium have attracted attention. In cast iron samples, titanium combines with carbon and forms TiC particles, which may be form a crystallization underlay for eutectic M7C3 carbides and austenite. Accordingly, the inoculation process occurring in the crystallizing alloy should result in the proper, regular distribution of fine eutectic chromium carbides in the austenitic matrix. The presented research was conducted on 20% Cr hypoeutectic white cast iron with the addition of 0.5, 1, and 2% of Ti. Ti inoculation and the presence of TiC allowed for superior wear properties to be obtained. However, the conducted study revealed a significant decrease in the impact strength of examined alloys, especially for the cast iron samples with a high amount of Ti, in which the TiC compounds agglomerated. Titanium compounds accumulate in clusters and their distribution is irregular. Most of the TiC compounds were transported by the crystallization front into the center of the castings, where micropores were formed, meaning they were no longer effective crystallization underlays. In the authors’ opinion, the agglomerate formation is strictly connected with the appearance of bifilm defects in the casting microstructure. The conducted research shows how an incorrect volume of an additive may have negative influences on the properties of the casting. This is a vital issue not only from a technological point of view, but also for economic reasons.

scholarly journals Hardness and Wear Resistance of TiC-Fe-Cr Locally Reinforcement Produced in Cast Steel

2016 ◽  
Vol 16 (2) ◽  
pp. 89-94 ◽  
Author(s):  
E. Olejnik ◽  
Ł. Szymański ◽  
P. Kurtyka ◽  
T. Tokarski ◽  
B. Grabowska ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
White Cast Iron ◽  
Base Alloy ◽  
Cast Steel ◽  
Steel Base ◽  
Chromium Cast Iron ◽  
Reference Samples ◽  
White Chromium ◽  
Ball On Disc

Abstract In order to increase wear resistance cast steel casting the TiC-Fe-Cr type composite zones were fabricated. These zones were obtained by means of in situ synthesis of substrates of the reaction TiC with a moderator of a chemical composition of white cast iron with nickel of the Ni-Hard type 4. The synthesis was carried out directly in the mould cavity. The moderator was applied to control the reactive infiltration occurring during the TiC synthesis. The microstructure of composite zones was investigated by electron scanning microscopy, using the backscattered electron mode. The structure of composite zones was verified by the X-ray diffraction method. The hardness of composite zones, cast steel base alloy and the reference samples such as white chromium cast iron with 14 % Cr and 20 % Cr, manganese cast steel 18 % Mn was measured by Vickers test. The wear resistance of the composite zone and the reference samples examined by ball-on-disc wear test. Dimensionally stable composite zones were obtained containing submicron sizes TiC particles uniformly distributed in the matrix. The macro and microstructure of the composite zone ensured three times hardness increase in comparison to the cast steel base alloy and one and a half times increase in comparison to the white chromium cast iron 20 % Cr. Finally ball-on-disc wear rate of the composite zone was five times lower than chromium white cast iron containing 20 % Cr.

ABK METAL

Alloy Digest ◽  
1953 ◽  
Vol 2 (11) ◽  
Keyword(s):  
Wear Resistance ◽  
Compressive Strength ◽  
Cast Iron ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Brake Shoe ◽  
Nickel Chromium ◽  
Chromium Cast Iron

Abstract ABK Metal is a nickel-chromium cast iron with excellent wear resistance, recommended for severe abrasive service. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength. It also includes information on wear resistance as well as casting, heat treating, machining, and joining. Filing Code: CI-4. Producer or source: American Brake Shoe Company.

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

Wear ◽  
1990 ◽  
Vol 135 (2) ◽  
pp. 217-226 ◽  
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

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

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.

Semisolid heat treatment of chromium cast iron

2006 ◽  
Vol 19 (2) ◽  
pp. 130-133
Author(s):  
R. Das ◽  
K. K. Ray ◽  
A. K. Chakrabarti
Keyword(s):  
Heat Treatment ◽  
Cast Iron ◽  
Chromium Cast Iron
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