Selective laser melting of nanostructured Al-Y-Ni-Co alloy

被引：11
作者：
Wang, Z. [1 ,6 ]
Scudino, S. [2 ,6 ]
Eckert, J. [3 ,4 ,6 ]
Prashanth, K. G. [3 ,5 ,6 ]
机构：
[1] South China Univ Technol, Natl Engn Res Ctr Near Net Shape Forming Metall M, Guangzhou 510640, Peoples R China
[2] Leibniz IFW Dresden, Inst Complex Mat, Helmholtzstr 20, D-01069 Dresden, Germany
[3] Austrian Acad Sci, Erich Schmid Inst Mat Sci, Jahnstr 12, A-8700 Leoben, Austria
[4] Univ Leoben, Dept Mat Phys, Jahnstr 12, A-8700 Leoben, Austria
[5] Tallinn Univ Technol, Dept Mech & Ind Engn, Ehitajate Tee 5, EE-19086 Tallinn, Estonia
[6] Vellore Inst Technol, Sch Mech Engn, CBCMT, Vellore 632014, Tamil Nadu, India
来源：
MANUFACTURING LETTERS | 2020年 / 25卷
基金：
中国国家自然科学基金;
关键词：
Aluminum alloys; Additive manufacturing; Selective laser melting; Mechanical properties; Nanostructure; MECHANICAL-PROPERTIES; HEAT-TREATMENT; MICROSTRUCTURE; STRENGTH; BEHAVIOR; COMPOSITES; ALSI10MG;
D O I：
10.1016/j.mfglet.2020.06.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A bulk nanostructured Al-Y-Ni-Co alloy has been synthesized from gas atomized powder by selective laser melting (SLM). The SLM sample exhibits a hybrid microstructure consisting of nano- and submicron-sized intermetallic phases (Al3Y and Al9Co2) in the alpha-Al matrix. Moreover, it shows the presence of solidification cracks and these solidification cracks can be avoided by introducing substrate plate heating. The SLM processed Al-Y-Ni-Co alloy shows a very high yield strength (625 MPa) combined with about 25% fracture strain, indicating that SLM is a highly versatile processing route not only capable to fabricate conventional alloys but also can process such novel materials. (C) 2020 Society of Manufacturing Engineers (SME). Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：21 / 25
页数：5
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