材料科学
钛
钛粉
基质(水族馆)
铝
极限抗拉强度
复合材料
金属间化合物
选择性激光熔化
脆性
多孔性
融合
冶金
微观结构
语言学
海洋学
哲学
地质学
合金
作者
Sven Müller,Peer Woizeschke
标识
DOI:10.1016/j.addma.2021.102377
摘要
The state of the art in the thermal joining of aluminum and titanium sheets in butt or overlap joint configuration specifies that the titanium should remain in the solid state to limit the formation of a brittle intermetallic compound layer in the interface. In this study, aluminum samples were additively manufactured onto titanium substrates and vice versa titanium samples onto aluminum substrates using a standard commercial laser powder bed fusion machine. The influences of the energy density during the process on the sample porosity, the characteristics of the interface between sample and substrate, as well as the tensile strength are analyzed. Despite the melting of both materials, a great potential for high interfacial tensile strength has been found for laser fusion of titanium powder on aluminum substrates.
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