典型文献
Mechanical and microstructural characterization of additive manufactured Inconel 718 alloy by selective laser melting and laser metal deposition
文献摘要：
The direct comparison of the microstructure and tensile properties of Inconel 718 fabricated by selective laser melting(SLM)or laser metal deposition(LMD)has been carried out.In the as-built state,LMD-fabricated specimens show lower tensile yield strength and fracture elongation than SLM-fabricated specimens due to the coarser solidification microstructure,including grains,cellular dendrites and Laves phases.This is mainly because the cooling rate of the LMD process is 2 to 3 orders lower than that of the SLM process.Upon the same heat treatment,both yield strengths of SLM-and LMD-fabricated specimens are enhanced significantly.Notably,LMD-fabricated specimens exhibit simultaneous improvement in the strength and ductility,which is mainly attributed to the presence of small granular Laves phases and uniformly distributed nanoscale γ"strengthening phases.The results could serve as a guidance for selecting suitable post-heat treatment routes for specific additive manufacturing process to attain excellent strength-ductility synergy.
文献关键词：
中图分类号：
作者姓名：
Fa-yun Lu;Hong-yuan Wan;Xin Ren;Li-ming Huang;Hai-lin Liu;Xin Yi
作者机构：
Department of Mechanics and Engineering Science,College of Engineering,Peking University,Beijing 100871,China
文献出处：
引用格式：
[1]Fa-yun Lu;Hong-yuan Wan;Xin Ren;Li-ming Huang;Hai-lin Liu;Xin Yi-.Mechanical and microstructural characterization of additive manufactured Inconel 718 alloy by selective laser melting and laser metal deposition)[J].钢铁研究学报（英文版）,2022(08):1322-1333
A类：
B类：
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AB值：
0.577797
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