scholarly journals STUDY OF HIGH CHROME WHITE SHEEP DEPENDENCE ON CARBONE QUANTITY AND ABRAZIVE CONDITIONS

2021 ◽  
Vol 08 (04) ◽  
pp. 72-77
Author(s):  
Aghali Quliyev, Zaka Salimov Aghali Quliyev, Zaka Salimov
Keyword(s):  
Cast Iron ◽  
White Cast Iron ◽  
Abrasive Particle ◽  
Diffusion Resistance ◽  
Chromium Alloy ◽  
Corrosion Resistant ◽  
Oil Drilling ◽  
Abrasive Particles ◽  
High Chromium ◽  
Erosion Coefficient

In addition to studying the properties of abrasive corrosion-resistant alloys, the article considers it important to study the abrasive corrosion-based effect of abrasive corrosion resistance of high-chromium white cast iron on the amount of carbon and the dependence of abrasive particles on carbide and particle dependence. At the same time, the spread of white cast iron with 1.5 - 30% Mo is higher, which makes it easier to spread the processed martensite cast iron. Açar sözlər: oil drilling equipment high chromium alloy, abrasive particle, diffusion resistance, hardness, erosion coefficient, abrasive conditions.

The influence of titanium addition on wettability of high-chromium white cast iron-matrix composites

2018 ◽  
Vol 53 (11) ◽  
pp. 1567-1576 ◽  
Author(s):  
Takalani Madzivhandila ◽  
Shepherd Bhero ◽  
Farouk Varachia
Keyword(s):  
Cast Iron ◽  
White Cast Iron ◽  
Mining Industry ◽  
Titanium Content ◽  
High Wear Resistance ◽  
Matrix Composites ◽  
Ferrous Alloys ◽  
Titanium Addition ◽  
High Chromium ◽  
Wetting Properties

The mining industry exerts ever increasing demand for components with high wear resistance to the extent that plain ferrous alloys are falling short. Innovative metal-matrix composites non-ferrous metals have been widely researched and used. Casting composites based on ferrous alloys pose monumental challenges in casting. First, the density differential results in large buoyant forces on the ceramic such that unless a rigid structure is configured, the less dense ceramic floats on the metal stream. Second, the poor wetting properties between metal and ceramic will result in inferior bonding of the matrix, hence separation of solids in service. The paper attempts to improve the bonding characteristics of zirconia and alumina through wettability studies. High-chromium white cast iron was used as a substrate. The wetting behavior of molten iron on the substrates of zirconia and alumina was investigated. The study shows that alumina is poorly wetted with copper and nickel; the wetting angles were higher than 90°. Thus, the envisaged coating of alumina with copper or nickel prior to casting of ferrous melts will not significantly alter or improve wettability of alumina. Between copper and nickel, nickel has better bonding with alumina than copper. Titanium in high-chromium white cast iron was found to improve the wetting characteristics on alumina. The wetting angle decreased with increased titanium content.

Effect of boron addition on three-body abrasive wear characteristics of high chromium based multi-component white cast iron

2022 ◽  
Vol 275 ◽  
pp. 125232
Author(s):  
Riki Hendra Purba ◽  
Kazumichi Shimizu ◽  
Kenta Kusumoto ◽  
Yila Gaqi ◽  
Takayuki Todaka
Keyword(s):  
Cast Iron ◽  
Abrasive Wear ◽  
White Cast Iron ◽  
Boron Addition ◽  
High Chromium ◽  
Wear Characteristics ◽  
Three Body

Effect of slurry concentration on erosion wear behavior of AISI 5117 steel and high-chromium white cast iron

2018 ◽  
Vol 70 (4) ◽  
pp. 628-638 ◽  
Author(s):  
Mohammed Ahmed Al-Bukhaiti ◽  
Ahmed Abouel Kasem Mohamad ◽  
Karam Mosa Emara ◽  
Shemy M. Ahmed
Keyword(s):  
Fractal Dimension ◽  
Cast Iron ◽  
Erosion Rate ◽  
Particle Concentration ◽  
White Cast Iron ◽  
Slurry Erosion ◽  
Content Type ◽  
High Chromium ◽  
Slurry Concentration ◽  
The Impact

Purpose This paper aims to investigate the influence of slurry concentration on the erosion behavior of AISI 5117 steel and high-chromium white cast iron by using a whirling-arm rig. In this study, the slurry erosion mechanism with particle concentration has been studied. Design/methodology/approach The tests were carried out with particle concentrations in the range of 1-7 Wt.%, and the impact velocity of slurry stream was 15 m/s. Silica sand with a nominal size range of 500-710 µm was used as an erodent. The study revealed that the failure mode was independent of concentration. Findings The results showed that the erosion rate decreases with the increase in particle concentration and the variation in the reduction depends on the material. It was found that the variation of fractal dimension calculated from slope of linearized power spectral density of eroded surface image for different concentrations can be used to characterize the slurry erosion intensity in a similar manner to the erosion rate. It was also found that the variation of fractal dimension versus concentration of sand has a general trend that does not depend on magnification factor. Originality/value Using the gravitational measurement and image analysis, the variation of the wear with slurry concentration has been analyzed to investigate the implicated mechanisms of erosion during the process.

Wear Resistance of Nano TiN Strengthen High Chromium Cast Iron

2012 ◽  
Vol 217-219 ◽  
pp. 2410-2413 ◽  
Author(s):  
Xing Hai Shao ◽  
Jing Pei Xie ◽  
Wen Yan Wang ◽  
Yan Li ◽  
Pin Gan Zhou ◽  
...  
Keyword(s):  
Grain Size ◽  
Wear Resistance ◽  
Cast Iron ◽  
Alloy Layer ◽  
Chromium Alloy ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Carbon Ferrochrome ◽  
Micro Analysis ◽  
Chromium Cast Iron

The effects and the mechanisms of namo TiN on the high chromium cast iron are studied, the material has been prepared through infiltration casting and addition of high carbon ferrochrome powder and nano TiN powder. The alloy is formed on the surfaced of guide plate, and the wear resistance of alloy have been studied by means of SEM, XRD micro-analysis and wear-resistant performance. The grain size and the type of carbide in the organization are affected by nano TiN, and the wear resistance of carbon chromium alloy layer is affected by the type of carbide; when the addition of nano TiN is 1% (wt), the grain size is apparently refined, overeutectic primary M7C3 in the hypereutectic is precipitated uniformly in considerable amounts, therefore the wear resistance of alloy can be improved effectively.

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