Arcelormittal

Arcelormittal France

Arcelormittal Investigacion Y Desarrollo, S.l.

Lode Duprez

Tom Waterschoot

Nele Van Steenberge

Marc Leveaux

Ana Martinez Suarez

Dorien De Knijf

Koenraad Theuwissen

Laura Moli

Laura Moli Sanchez

Laura Del Rio Fernandez

Philippe Gousselot

Jimenez Javier Gonzalez

Javier GONZÁLEZ JIMÉNEZ

A process for manufacturing an additively-manufactured part from a metal powder having a composition having the following elements, expressed in content by weight: 6%≤Ni≤14%, 5%≤Cr≤10%, 0.5%≤Si≤2.5%, 0.5%≤Ti≤2%, C≤0.04% and optionally containing 0.5%≤Cu≤2%, the balance being Fe and unavoidable impurities resulting from the elaboration, the metal powder having a microstructure including in area fraction more than 98% of a body-centered cubic crystalline phase, the process having a step during which at least a part of the metal powder is melted in an atmosphere substantially composed of an inert gas other than Argon or of a combination of inert gases other than Argon.

Process for the additive manufacturing of maraging steels

A hot rolled steel sheet having a composition including the following elements, 0.18%≤Carbon≤0.3%, 1.8%≤Manganese≤4.5%. 0.8%≤Silicon≤2%, 0 001%≤Aluminum≤0.2%, 0.1%≤Molybdenum≤1%, 0.001%≤Titanium≤0.2%, 0.0001%≤Boron≤0.01%, 0%≤Phosphorus≤0.09%, 0%≤Sulfur≤0.09%, 0%≤Nitrogen≤0.09%, 0%≤Chromium≤0.5%, 0%≤Niobium≤0.1%, 0%≤Vanadium≤0.5%, 0%≤Nickel≤1%, 0%≤Copper≤1%, 0%≤Calcium≤0.005%, 0%≤Magnesium≤0.0010% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet including in area fraction, of at least 70% martensite, 8% to 25% residual austenite, wherein the shape factor of the residual austenite is between 4 and 12.

Hot rolled and steel sheet and a method of manufacturing thereof

A hot rolled steel having a composition including the following elements, expressed in percentage by weight:

Hot rolled steel and a method of manufacturing thereof

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Gentbrugge, Belgium

Lode Duprez