2006•Unpublished venueRequires access
Development and Application of Carbide-Free Bainite Wear-Resistant Casting Steel Materials
Zhixue Liu
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Abstract
The microstructure,properties and wear resistance of carbide-free bainite wear-resistant casting steel were investigated.The results show that normalizing at 960℃～1 000℃ and tempering at 250℃～350℃ the microstructure of test materials is bainite ferrite and austenite,which is a carbide free bainite structure and the test steel has better strength and impact toughness.Temper brittleness appears at 450 ℃ and bainite ferrite and residual austenite decomposed carbide,impact toughness reaches the lowest value.As to be compared with the wear properties of imported bucket teeth,carbide-free bainite bucket teeth materials has high wear resistant property and can be use as a kind of new type bucket teeth materials.In addition its application of carbide free bainite bucket teeth materials is introduced.