Enhanced strength-ductility synergy in a selective laser melted Inconel 718 superalloy by refining γ″ precipitates

Xing Li,Zhishou Zhu,Ke Liu, Jianjun Shi,Xingli Zou,Xionggang Lu,Guanghui Cao,Sujun Wu

Materials Letters（2023）

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摘要

•A new heat treatment route is developed for selective laser melted Inconel 718 alloy.•The γ″ can be refined to be about 10–35 nm by reducing the aging temperature and time.•Enhanced strength-ductility synergy is achieved by refining γ″ precipitates.

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关键词

Superalloy,Selective laser melting,Aging,Precipitation,Mechanical property

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