비구형 입자를 함유하는 철계 합금 분말

• Main Authors: STAUDT THORSTEN MARTIN, WAGNER MATTHIAS JOHANNES, SEILER RUDOLF, MUELLER WEITZEL CECILE, HERMANT MARIE CLAIRE, ARBTER RENE
• Format: Patent
• Language: Korean
• Published: 10.05.2022
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; ALLOYS; CASTING; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

본 발명은 제1 측면에서 비구형 입자를 함유하는 철계 합금 분말에 관한 것이고, 입자 총량의 40% 이상은 비구형 형상을 갖는다. 상기 합금은 Fe(철), Cr(크롬) 및 Mo(몰리브덴) 원소를 필수로 포함한다. 또한, 상기 합금은 C(탄소), Ni(니켈), Nb(니오븀) 또는 Si(규소)와 같은 추가 원소를 포함할 수 있다. 본 발명은, 제2 측면에 따르면, 철계 합금 분말에 관한 것이고, 이때 상기 합금은 Fe, Cr 및 Mo 원소를 포함하고, 상기 철계 합금 분말은 하기 정의되는 둘 이상의 단계를 포함하는 초고압 액체 분무화 공정에 의해 제조된다. The present invention relates in a first aspect to an iron-based alloy powder containing non-spherical particles and at least 40% of the total amount of particles have a non-spherical shape. The alloy mandatorily comprises the elements Fe (iron), Cr (chrome) and Mo (molybdenum). Furthermore, the alloy may comprise further elements such as C (carbon), Ni (nickel), Nb (niobium) or Si (silicon). The present invention relates, according to a second aspect, to an iron-based alloy powder wherein the alloy comprises the elements Fe, Cr and Mo and the iron-based alloy powder is produced by an ultra-high liquid atomization process comprising at least two stages as defined below.