Aluminum alloy containing scandium, titanium and zirconium elements for 3D printing

• Main Authors: SHEN XIANFENG, LUO YUWEN, YANG JIALIN, WANG GUOWEI, WANG LILI, YE ZUOYAN, CHEN JINMING, HUANG SHUKE, SUN KAIHUA
• Format: Patent
• Language: Chinese; English
• Published: 02.06.2020
• 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; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PERFORMING OPERATIONS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses an aluminum alloy containing scandium, titanium and zirconium elements for 3D printing. The aluminum alloy comprises the following components in percentage by weight: 1.5%-4.5%of Mg, 1%-3.5% of Mn, 0.2%-1.5% of Sc, 0.2-1% of Ti and Zr in total, 0.0001-0.15% of O, impurities, and the balance Al. Compared with an existing aluminum alloy for 3D printing, the aluminum alloy has the advantages that the Ti element in the alloy can replace the strengthening effect of the Sc element to a certain extent so as to improve the economical efficiency, the Ti element in the alloy canreplace the strengthening effect of the Zr element to a certain extent so as to reduce the preparation difficulty of the alloy, and the alloy has excellent mechanical properties and good forming characteristics. 本发明公开了一种含有钪钛锆元素的3D打印用铝合金，包括以下重量百分比组分：Mg：1.5％～4.5％，Mn：1％～3.5％，Sc：0.2％～1.5％，Ti和Zr的总和：0.2％～1％，O：0.0001％～0.15％，杂质，余量为Al。该铝合金与现有用于3D打印的铝合金相比，该合金中钛元素可以一定程度上替代钪元素的强化作用从而提高经济性，该合金中钛元素可以一定程度上替代锆元素的强化作用从而降低合金制备难度，并且该合金拥有优异的