Compound body

US4284687A · kind A · utility

Assignee

• Fried Krupp · DE

Inventors

• Klaus Dreyer · Essen, DE
• Hans Grewe · Grefrath, DE
• Johannes Kolaska · Bottrop, DE
• Norbert Reiter · Mettmann, DE

Key dates

• Filing date: Nov 16, 1979
• Grant date: Aug 18, 1981
• Expiry date: Nov 16, 1999

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/265
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A compound body comprising a metallic basic body, an inner layer or layers of carbides and/or nitrides of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Si, or B, and an outer layer or layers of a mixture of oxides and nitrides and/or oxynitrides of Cr, Al, Ca, Mg, Th, Sc, Y, La, Ti, Hf, V, Nb, or Ta. The compound body can be used as a part subject to wear, and for machining metallic materials.