비구형 입자를 함유하는 철계 합금 분말

• Main Authors: STAUDT THORSTEN MARTIN, WAGNER MATTHIAS JOHANNES, SEILER RUDOLF, MUELLER WEITZEL CECILE, HERMANT MARIE CLAIRE, ARBTER RENE, TRENKLE JONATHAN, LEMKE HARALD
• Format: Patent
• Language: Korean
• Published: 13.09.2022
• 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 비구형 입자를 함유하는 철계 합금 분말로서, 상기 합금이 Fe(철), Cr(크롬) 및 Mo(몰리브덴) 원소를 포함하고, 입자 총량의 40% 이상이 비구형 형상을 갖는다. 상기 철계 합금 분말에서, Cr은 10.0　중량% 내지 18.3　중량%로 존재하고, Mo는 0.5　중량% 내지 2.5　중량%로 존재하고, C는 0 내지 0.30　중량%로 존재하고, Ni은 0 내지 4.0　중량%로 존재하고, Cu는 0 내지 4.0　중량%로 존재하고, Nb은 0 내지 0.7　중량%로 존재하고, Si는 0 내지 0.7　중량%로 존재하고, N은 0 내지 0.20　중량%로 존재하고, 100 중량%까지의 잔부는 Fe이다. 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.