In-situ synthesis via laser metal deposition of a lean Cu-3.4Cr-0.6Nb(at.%) conductive alloy hardened by Cr nano-scale precipitates and by Laves phase micro-particles,Acta Materialia

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In-situ synthesis via laser metal deposition of a lean Cu-3.4Cr-0.6Nb(at.%) conductive alloy hardened by Cr nano-scale precipitates and by Laves phase micro-particles
Acta Materialia ( IF 9.4 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.actamat.2020.07.035
Anoop R Kini , Dora Maischner , Andreas Weisheit , Dirk Ponge , Baptiste Gault , Eric A Jägle , Dierk Raabe

Abstract Conductive and yet strong copper alloys are essential materials in highly mechanically loaded electrical devices. We demonstrate a novel in-situ synthesis approach via laser metal deposition (LMD) in a lean copper alloy, Cu–3.4Cr–0.6Nb (at%). Strengthening in the lean alloy comes from chromium nano-scale precipitates formed in-situ (4 nm diameter; number density 8 × 1023 m−3) and from Laves phase particles (

中文翻译：

通过激光金属沉积原位合成由 Cr 纳米级沉淀物和 Laves 相微粒硬化的贫 Cu-3.4Cr-0.6Nb(at.%) 导电合金

摘要导电且坚固的铜合金是高机械负载电气设备的基本材料。我们展示了一种通过激光金属沉积 (LMD) 在贫铜合金 Cu–3.4Cr–0.6Nb (at%) 中实现的新型原位合成方法。贫合金中的强化来自原位形成的铬纳米级沉淀物（4 nm 直径；数密度 8 × 1023 m-3）和 Laves 相颗粒（

更新日期：2020-09-01

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