scholarly journals The Effect of Fe-Ti Inoculation on Solidification, Structure and Mechanical Properties of High Chromium Cast Iron

2017 ◽  
Vol 62 (4) ◽  
pp. 2183-2187 ◽  
Author(s):  
D. Kopyciński ◽  
D. Siekaniec ◽  
A. Szczęsny ◽  
E. Guzik ◽  
A. Nowak
Keyword(s):  
Mechanical Properties ◽  
Cast Iron ◽  
Chemical Composition ◽  
Structure Refinement ◽  
Solidification Structure ◽  
Titanium Addition ◽  
Optimal Amount ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Chromium Cast Iron

AbstractThe results of studies of the effect of different amounts of the Fe-Ti inoculant on structure and selected mechanical properties of High Chromium Cast Iron (conventionally abbreviated as HCCI) are presented. The main purpose of the inoculation is structure refinement and hence the improvement of casting properties. Generally considered a strong carbide-forming element, titanium is an effective inoculant for the high chromium cast iron. However, there is an optimal amount of titanium addition beyond which the mechanical properties begin to deteriorate. The studies enabled determining the amount of Fe-Ti inoculant optimal for the cast iron of a given chemical composition.

Microstructure Refinement of Hypereutectic High Chromium Cast Iron with Electric Current Pulse

2013 ◽  
Vol 690-693 ◽  
pp. 147-152 ◽  
Author(s):  
Hua Chen ◽  
Ling Zhang ◽  
Sheng Ming Wang
Keyword(s):  
Cast Iron ◽  
Electric Current ◽  
Current Pulse ◽  
Pulse Frequency ◽  
Solidification Structure ◽  
Electric Current Pulse ◽  
Electric Voltage ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Chromium Cast Iron

The effect of electric current pulse (ECP) on the solidification structure of hypereutectic high chromium cast iron was studied. The orthogonal array L9 was used to determine the effect of three process parameters of ECP, which were electric voltage, pulse frequency, pulse width. According to the experimental results, the solidification structure of hypereutectic high chromium cast iron was modified from large grains to finer grains with equiaxed crystals, by allowing the ECP to act on liquid.

Effects of Vanadium and Rare-Earth on Carbides and Properties of High Chromium Cast Iron

2008 ◽  
Vol 575-578 ◽  
pp. 1414-1419 ◽  
Author(s):  
Wen Min Zhao ◽  
Zhen Xu Liu ◽  
Zi Lai Ju ◽  
Bo Liao ◽  
Xue Guang Chen
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Rare Earth ◽  
Cast Iron ◽  
Treatment Technology ◽  
High Chromium ◽  
Shape Distribution ◽  
High Chromium Cast Iron ◽  
Heat Treatment Technology ◽  
Chromium Cast Iron

The type, shape and distribution of carbide take directly effect on the mechanical properties of high chromium castings. Vanadium is able to stabilize the structure of carbide in high chromium cast iron, meanwhile the hardness of carbide containing vanadium can reaches about 2800HV. In some cases, vanadium can also refine the microstructure. Rare-earth is able to change the shape of carbide in cast iron, refine the grain size of ferrite and improve the mechanical properties of castings. In this experiment, intention of adding vanadium and rare-earth is modification of mechanical properties with the proper heat treatment technology. With the help of SEM, the characteristics of carbide, such as shape, distribution and quantity can be observed and mechanical properties have been improved for better wear-resistance.

scholarly journals Effect of Heat Treatment on Microstructure and Mechanical Properties of Ti-alloyed Hypereutectic High Chromium Cast Iron

2012 ◽  
Vol 52 (12) ◽  
pp. 2288-2294 ◽  
Author(s):  
Qiang Liu ◽  
Peter Hedstr^|^ouml;m ◽  
Hongwei Zhang ◽  
Qiang Wang ◽  
P^|^auml;r G. J^|^ouml;nsson ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Cast Iron ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Microstructure And Mechanical Properties ◽  
Chromium Cast Iron
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