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Mn-Cu-based damping alloy powder for use in selective laser melting process and preparation method thereof

机译：用于选择性激光熔化工艺的锰铜基阻尼合金粉及其制备方法

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#$%^&*AU2020101822A420200924.pdf#####ABSTRACT The present invention belongs to the technical field of metal materials for additive manufacturing, and relates to a Mn-Cu-based damping alloy powder for use in a selective laser melting (SLM) process and a preparation method thereof. The powder has chemical components in percent by weight as follows: C: 0.15%, Ni: 4.9-5.2%, Si: 0.15%, Fe: 1.8-5.0%, Cu: 20-23%, P: 0.03%, S: 0.06%, and the balance being Mn and inevitable impurities. The preparation method includes: preparation of master alloy, powdering by vacuum induction melting gas atomization (VIGA) , mechanical vibrating and air classification screening under protection of an inert gas and collecting. Compared with the prior art, the powder of the present invention has a high sphericity, a high apparent density, a small angle of repose, a desired fluidity and a relatively high yield of fine powders having a size of 15-53 [m. The powder of the present invention can be applied to vibration damping parts for additive manufacturing in aerospace and ship fields, and can also be extended to additive manufacturing of precision electronic instruments in transportation and nuclear power fields, having a promising prospect on markets.0.06 0.05 - HIP850 0.04 ''- - -- HIP920 'b0.03 - Cooling 0.02 Heating 0.01 0.00 -150 -100 -50 0 50 100 150 200 250 T/, FIG. 4 (a FIG. 5 (b FIG. 6
机译：＃$％^＆* AU2020101822A420200924.pdf #####抽象本发明属于添加剂金属材料技术领域制造，并且涉及用于选择性激光器的Mn-Cu基阻尼合金粉末熔融（SLM）工艺及其制备方法。粉末中含有化学成分重量百分比如下：C：<0.15％，Ni：4.9-5.2％，Si：<0.15％，Fe：1.8-5.0％，Cu：20-23％，P：<0.03％，S：<0.06％，其余为Mn和不可避免的杂质。制备方法包括：制备中间合金，通过真空感应熔化气体雾化进行粉末化（VIGA），机械振动和空气分类筛分在惰性气体和收集。与现有技术相比，本发明的粉末具有较高的球形度，较高的表观密度，较小的休止角，所需的流动性和较高的收率15-53 [m。本发明的粉末可以应用于减震部件，用于航空航天和舰船领域的增材制造，也可以是扩展到运输和电子行业的精密电子仪器的增材制造核电领域，市场前景广阔。0.060.05-HIP8500.04英寸---HIP920'b0.03-冷却0.02加热0.010.00-150 -100 -50 0 50100150200250T /图。 4（一种图。 5（b图。 6

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