Abstract
The test used casting process to alloy the traditional high manganese steel with adding Ti. The surface morphology of the high manganese steel sample was observed by the scanning electron microscopy.At the same time, the hardness, the tensile strength and the wear resistance of the sample were tested. Compared with the high manganese steel without alloying, it studied the micro-structure and properties of modified high manganese steel . The results show that the grain of high manganese steel alloyed by titanium alloy is refined, the inclusions is dispersed and their size is reduced. The hardness of high manganese steel is increased by 87 %~263 %, but the tensile strength is reduced. Compared with the sample without added titanium element, the wear resistance of the alloyed high manganese steel is significantly improved.
Highlights
As a good wear-resistant material, high manganese steel is widely used in many fields such as machinery, mining, metallurgy, coal, chemical industry railway and many other fields because of its excellent organization and performance [1~2]
This paper studied the effects of Ti alloying treatment on the micro-structure and properties of high manganese steel, provides important basses to improve the wear resistance of high manganese steel and prolongs the life of the grinding and casting parts
After alloying with titanium in high manganese steel, titanium forms a large number of stable, high melting point compounds in austenitic manganese steel, such as TiC, TiN, which can be used as a crystal core
Summary
As a good wear-resistant material, high manganese steel is widely used in many fields such as machinery, mining, metallurgy, coal, chemical industry railway and many other fields because of its excellent organization and performance [1~2]. A large number of studies have shown that alloying treatment [3] is one of the effective ways to improve the wear resistance of high manganese steel. It usually adds alloying elements such as Cr, V, rare earth, etc. The studies have shown that the addition of more than one alloying elements is more effective than the addition of a single element This test used the controlled variable method. In order to explore the mechanism of action of Ti in high manganese steel, this paper established a reasonable research method and experimental process. This paper studied the effects of Ti alloying treatment on the micro-structure and properties of high manganese steel, provides important basses to improve the wear resistance of high manganese steel and prolongs the life of the grinding and casting parts
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