The effect of Ti addition on the wear resistance of Nb-containing cast steel

Author(s):  
Zexi Fan ◽  
Wang Ding ◽  
Yitao Yang
2017 ◽  
Vol 17 (1) ◽  
pp. 143-146 ◽  
Author(s):  
S. Sobula ◽  
E. Olejnik ◽  
T. Tokarski

Abstract Wear resistance of TiC-cast steel metal matrix composite has been investigated. Composites were obtained with SHSB method known as SHS synthesis during casting. It has been shown the differences in wear between composite and base cast steel. The Miller slurry machine test were used to determine wear loss of the specimens. The slurry was composed of SiC and water. The worn surface of specimens after test, were studied by SEM. Experimental observation has shown that surface of composite zone is not homogenous and consist the matrix lakes. Microscopic observations revealed the long grooves with SiC particles indented in the base alloy area, and spalling pits in the composite area. Due to the presence of TiC carbides on composite layer, specimens with TiC reinforced cast steel exhibited higher abrasion resistance. The wear of TiC reinforced cast steel mechanism was initially by wearing of soft matrix and in second stage by polishing and spalling of TiC. Summary weight loss after 16hr test was 0,14÷0,23 g for composite specimens and 0,90 g for base steel.


2014 ◽  
Vol 668-669 ◽  
pp. 52-55
Author(s):  
Yang Han ◽  
Ai Ling Zhang ◽  
Lin Yang ◽  
Ya Ling Han

The microstructure of 40CrNi2Mo steel matrix strengthened with wear resistance alloy is observed by the optical scope, SEM with EDS and FESEM. Analysis emphasis is lied on the distribution regulation of nanosized WC particulates in the microstructure of the steel matrix. Experimental results show that the method of adding wear resistance alloy in steel matrix can avoid gravity segregation phenomenon effectively and guarantee a uniform distribution of WC in steel matrix. nanosized WC particulates distributing evenly in steel matrix improve the wear resistance, and make microstructure of the steel matrix more uniform, finer and denser proved by its high-expansion micrograph.


2019 ◽  
Vol 6 (10) ◽  
pp. 106594
Author(s):  
Yongxin Xie ◽  
Ying Liu ◽  
Hong Guo ◽  
Wei Li ◽  
Dahai Zeng

2006 ◽  
Vol 24 (1) ◽  
pp. 401-404 ◽  
Author(s):  
Xie Jingpei ◽  
Wang Aiqin ◽  
Wang Wenyan ◽  
Li Jiwen ◽  
Li Luoli

Wear ◽  
2017 ◽  
Vol 376-377 ◽  
pp. 1091-1096 ◽  
Author(s):  
Ke Yang ◽  
Yuan Gao ◽  
Kè Yang ◽  
Yefeng Bao ◽  
Yongfeng Jiang

Tribologia ◽  
2018 ◽  
Vol 280 (4) ◽  
pp. 137-142
Author(s):  
Dagmara TRYBA ◽  
Marcin KOT ◽  
Anna ANTOSZ

Properties of high manganese austenitic cast steel are not satisfactory; therefore, this material should be hardened. Currently, the commonly used method of hardening does not allow eliminating problems related to premature wear of railway frogs. Therefore, many studies have been carried out to find an alternative method to obtain improved wear resistance of such elements. The article presents an analysis of the mechanical and tribological properties of base and hardened, by different methods, high-manganese cast steel applied for turnouts. Tests were performed for three hardening methods: explosive, pressure-rolling, and dynamic impact. The results were compared with the properties of base material after saturation treatment. The conducted tests allowed the determination of hardness profiles of hardened surfaces, as well as the wear resistance and coefficient of friction, and the obtained results are very promising. Hardening by dynamic impact provided much better results in relation to presently used explosive hardening technology.


1993 ◽  
Vol 64 (10) ◽  
pp. 517-521 ◽  
Author(s):  
Saied Azab El-Ghazaly ◽  
Yehya Shash ◽  
Mohammed Kamal Sami ◽  
Mohammed Abbas

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