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从粉末到致密金属零件：通过直接金属激光烧结工艺加工的商用铝硅镁合金的表征

From Powders to Dense Metal Parts: Characterization of a Commercial AlSiMg Alloy Processed through Direct Metal Laser Sintering.

作者信息

Manfredi Diego, Calignano Flaviana, Krishnan Manickavasagam, Canali Riccardo, Ambrosio Elisa Paola, Atzeni Eleonora

机构信息

Center for Space Human Robotics @Polito, Istituto Italiano di Tecnologia, Corso Trento 21, Torino 10129, Italy.

Department of Management and Production Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino 10129, Italy.

出版信息

Materials (Basel). 2013 Mar 6;6(3):856-869. doi: 10.3390/ma6030856.

DOI:10.3390/ma6030856
PMID:28809344
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5512803/
Abstract

In this paper, a characterization of an AlSiMg alloy processed by direct metal laser sintering (DMLS) is presented, from the analysis of the starting powders, in terms of size, morphology and chemical composition, through to the evaluation of mechanical and microstructural properties of specimens built along different orientations parallel and perpendicular to the powder deposition plane. With respect to a similar aluminum alloy as-fabricated, a higher yield strength of about 40% due to the very fine microstructure, closely related to the mechanisms involved in this additive process is observed.

摘要

本文介绍了通过直接金属激光烧结（DMLS）工艺加工的AlSiMg合金的特性，内容涵盖从起始粉末的尺寸、形态和化学成分分析，直至对沿平行和垂直于粉末沉积平面的不同方向构建的试样的力学和微观结构性能进行评估。与类似的铸态铝合金相比，由于非常精细的微观结构，观察到屈服强度提高了约40%，这与该增材制造工艺所涉及的机制密切相关。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/1d1dfd4c6d7a/materials-06-00856-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/b5bb0cb2df13/materials-06-00856-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/618d9d267d42/materials-06-00856-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/c5663a8486e0/materials-06-00856-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/c637087b349f/materials-06-00856-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/a04117c4cbbd/materials-06-00856-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/685dde8b8725/materials-06-00856-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/90226034222a/materials-06-00856-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/c837afd46e58/materials-06-00856-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/1d1dfd4c6d7a/materials-06-00856-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/b5bb0cb2df13/materials-06-00856-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/618d9d267d42/materials-06-00856-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/c5663a8486e0/materials-06-00856-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/c637087b349f/materials-06-00856-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/a04117c4cbbd/materials-06-00856-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/685dde8b8725/materials-06-00856-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/90226034222a/materials-06-00856-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/c837afd46e58/materials-06-00856-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ce/5512803/1d1dfd4c6d7a/materials-06-00856-g009.jpg

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