Low carbon steel and cemented carbide wear part

US10196712B2 · kind B2 · utility

Assignee

• Sandvik Hyperion AB · SE

Inventor

• Stefan Ederyd · Boo, SE

Key dates

• Filing date: Nov 7, 2013
• Grant date: Feb 5, 2019
• Expiry date: Dec 25, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C29/08
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present disclosure relates to a wear part having high wear resistance and strength and a method of making the same. The wear part is composed of a compound body of cemented carbide particles cast with a low-carbon steel alloy. The low-carbon steel alloy has a carbon content corresponding to a carbon equivalent Ceq=wt % C+0.3(wt % Si+wt % P) of about 0.1 to about 1.5 weight %. The wear part could include a body with a plurality of inserts of cemented carbide particles cast into a low-carbon steel alloy disposed in the body. Each of the plurality of cemented carbide inserts are coated with at least one layer of oxidation protection/chemical resistant material. The plurality of inserts are directly fixed onto a mold corresponding to the shape of the wear part. The cemented carbide inserts are then encapsulated with the molten low-carbon steel alloy to cast the cemented carbide inserts with the low-carbon steel alloy.