Amorphous alloy and process for producing products made thereof

US8657967B2 · kind B2 · utility

Assignee

• OCAS Onderzoekscentrum voor Aanwending van Staal N.V. · BE

Inventors

• Daniel Ruiz Romera · Zelzate, BE
• Serge Claessens · Deurne, BE
• Marc De Wulf · Zelzate, BE
• Nele Van Steenberge · Zelzate, BE
• Joachim Antonissen · Zelzate, BE

Key dates

• Filing date: Apr 15, 2009
• Grant date: Feb 25, 2014
• Expiry date: Jul 21, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C2200/02
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention is related to process for producing an amorphous Fe-based bulk metallic glass product, formed of an alloy having a chemical formula of Fe100-a-b-c-d-x-y MaNbbSicBdIxJy wherein: • M is Co and/or Ni, •I is one or more elements of the group consisting of Al, Cr, Cu, Mn, C and P, •J is one or more elements of the group consisting of Ti, S, N and O and wherein a, b, c, d, x and y are satisfying the following conditions: 0 wt. %<a≦46. 1 wt. %, 5.4 wt. %≦b≦12.4 wt. %, 2.2 wt. %≦c≦4.4 wt. %, 2 wt. %<d≦6 wt. %, x≦2 wt. % and y≦0.2 wt. %, the process comprising the steps of producing a master alloy by melting starting materials, comprising Fe-containing alloys, and by melting said master and pouring the molten alloy into a mold.