scholarly journals Influence of Titanium on Crystallization and Wear Resistance of High Chromium Cast Iron

2016 ◽  
Vol 16 (1) ◽  
pp. 117-123 ◽  
Author(s):  
A. Studnicki ◽  
R. Dojka ◽  
M. Gromczyk ◽  
M. Kondracki
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Primary Crystallization ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Pin On Disk ◽  
Chromium Cast Iron ◽  
Disk Method ◽  
Wear Tests

Abstract Paper presents the results of studies on primary crystallization and wear resistance of high chromium cast iron inoculated with ferrotitanium intended for work in abrasive conditions. Primary crystallization was examined with use of TDA method, wear tests of the samples were conducted using the modified pin-on-disk method.

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.

Microstructure and Corrosive Wear Property of Super High Chromium Cast Iron (SHCCI)

2011 ◽  
Vol 228-229 ◽  
pp. 905-908
Author(s):  
Liu Jie Xu ◽  
Shi Zhong Wei ◽  
Ji Wen Li ◽  
Guo Shang Zhang ◽  
Xiang Dong Ma
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Carbon Content ◽  
Corrosive Wear ◽  
Wear Property ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Relative Wear ◽  
Relative Wear Resistance ◽  
Chromium Cast Iron

To increase the wear resistance of components in slurry pump suffering from serious corrosive abrasion, new super high chromium cast iron (SHCCI) which contains 37wt.% chromium approximately and different carbon content were developed based on the high chromium cast iron with 26wt.% Cr (Cr26). The microstructure of SHCCI was investigated by SEM and XRD. The hardness and impact toughness of SHCCI was tested, and the corrosive wear property of SHCCI was also researched using MCF-30 type erosion abrasion tester under H3PO4 medium condition. The results show that the microstructure of SHCCI is composed of carbide of M7C3+M23C6, martensite and retained austenite. With the increase of carbon content, the hardness of SHCCI first increases and then decreases, the toughness increases, and the corrosive wear property decreases. The relative wear resistance of SHCCI is obviously superior to that of Cr26 cast iron, and the maximal relative wear resistance of SHCCI is three times higher than that of Cr26 cast iron.

Influence of retained austenite on the wear resistance of high chromium cast iron under various impact loads

Wear ◽  
1993 ◽  
Vol 162-164 ◽  
pp. 83-88 ◽  
Author(s):  
Xi Jun-Tong ◽  
Zhou Qing-De ◽  
Liu Shi-Hui ◽  
Song Guang-Shun
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Retained Austenite ◽  
Impact Loads ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Chromium Cast Iron

Interfacial Characteristics and Wear Resistance of WCp/White-Cast-Iron Composites

2007 ◽  
Vol 26-28 ◽  
pp. 293-296 ◽  
Author(s):  
Guo Shang Zhang ◽  
Yi Min Gao ◽  
Jian Dong Xing ◽  
Shi Zhong Wei ◽  
Xi Liang Zhang
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
White Cast Iron ◽  
Centrifugal Casting ◽  
Casting Process ◽  
Iron Matrix ◽  
High Chromium ◽  
X Ray ◽  
High Chromium Cast Iron ◽  
Wear Tests

To improve the wear resistance of high chromium white cast iron under severe abrasive conditions, a composites layer was designed for wear surface, which were locally reinforced with WC particles. And the local composites were successfully fabricated by optimized centrifugal casting process. Then the interface between WC and iron matrix was analyzed with scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD). And three body wear tests were carried out on a self-made rig to investigate the wear resistance of the composites. For comparison, the wear tests of high chromium white cast iron were also carried out under the same conditions. The results show that: There are no defects such as inclusion, crack, gas pore and so on in the obtained composites layer, which with a uniform thickness of 10 mm. WC particles are homogeneously distributed in the composites layer and tightly bonded with the iron matrix. The WC particles are partially dissolved in the iron matrix during centrifugal casting. The elements W, C and Fe react to form new carbides such as Fe3W3C or M23C6, which precipitate around former WC particles during subsequent solidification. So the interface between WC particles and the iron matrix is a strong metallurgical bonding. WC particles in the composites layer can effectively resist cutting by the abrasive, and then protect the matrix. The wear resistance of the composites layer is 7.23 times of that of high chromium cast iron.

scholarly journals Effect of Si Content on the Microstructure and Wear Resistance of High Chromium Cast Iron

2018 ◽  
Vol 58 (8) ◽  
pp. 1532-1537 ◽  
Author(s):  
Jian-Ping Lai ◽  
Qing-Lin Pan ◽  
Yuan-Wei Sun ◽  
Chang-An Xiao
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Si Content ◽  
Chromium Cast Iron

Wear resistance of Ni-hard 4 and high-chromium cast iron re-evaluated

Wear ◽  
1993 ◽  
Vol 166 (1) ◽  
pp. 37-40 ◽  
Author(s):  
Liu Jinzhu ◽  
Li Shizhuo ◽  
Man Yongfa
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Chromium Cast Iron

scholarly journals Wear Resistance Mechanism of ZTAP/HCCI Composites with a Honeycomb Structure

Metals ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 588 ◽  
Author(s):  
Mojin Zhou ◽  
Yudong Sui ◽  
Xiaoyu Chong ◽  
YeHua Jiang
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Abrasive Wear ◽  
Layer Structure ◽  
Resistance Mechanism ◽  
Honeycomb Structure ◽  
Protection Effect ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Chromium Cast Iron

The abrasive wear resistance of zirconia toughened alumina (ZTA) ceramic particle reinforced high chromium cast iron (HCCI) composites has been systematically investigated using a moving wedge type of apparatus. The results of three-body abrasive wear show that the wear resistance of the composites with honeycomb is three times higher than that of the high chromium cast iron. The wear resistance of the composites with a honeycomb structure is close to that of the layer structure and is higher than that of the HCCI because the honeycomb wall in the cell honeycomb structure is prominent and because the honeycomb core is depressed. The wear mechanisms of the composites are mainly microcutting and fatigue fractures. The honeycomb structure forms a “macrocosmic shadow protection effect” and a “microcosmic shadow protection effect” to protect each composite and to improve the wear resistance of the composites.

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