High-strength silicon brass manufactured by selective laser melting

High-strength silicon brass manufactured by selective laser melting
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选择性激光熔化制造的高强度硅黄铜

DOI:
10.1016/j.matlet.2017.09.011
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发表时间:
2018
期刊:
影响因子:
3
通讯作者:
Zhang L. C.
Zhang L. C.
中科院分区:
材料科学3区
文献类型:
--
作者:
Yang C.;Zhao Y. J.;Kang L. M.;Li D. D.;Zhang W. W.;Zhang L. C.

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一般来说,适应选择性激光熔化(SLM)的金属合金需要满足三个基本物理性能,即较高的激光吸收率,较低的导热系数,特别是不含低沸点挥发性元素。本文采用气雾化粉末SLM法制备了不满足上述三个要求的高强度Cu-12.5Zn-2.9Si硅黄铜。有趣的是,slm制造的硅黄铜具有较高的相对密度(98.8%),因此表现出比铸造铜更高的强度。因此,这项工作首次证实了用SLM制造具有特殊物理性能的高强度金属合金的可行性。
Generally, metallic alloys adaptive to selective laser melting (SLM) need to meet three basic physical properties, i.e. relatively high laser absorptivity, relatively low thermal conductivity, and especially non-containing low boiling point volatile elements. In this work, high-strength Cu-12.5Zn-2.9Si silicon brass, which does not meet these three requirements, was manufactured by SLM from gas-atomized powder. Interestingly, the SLM-manufactured silicon brass has high relative density (98.8%) thereby exhibiting higher strength than that for cast counterpart. Accordingly, this work substantiates, for the first time, the feasibility by SLM to manufacture high-strength metallic alloys with special physical properties.
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