Selective laser melting of AlSi10 Mg: Influence of process parameters on Mg2Si precipitation and Si spheroidization

被引：70
作者：
Biffi, C. A. [1 ]
Fiocchi, J. [1 ]
Tuissi, A. [1 ]
机构：
[1] CNR, Inst Condensed Matter Chem & Technol Energy, Unit Lecco, CNR ICMATE, Via Previati 1E, I-23900 Lecce, Italy
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 755卷
关键词：
Selective laser melting; Additive manufacturing; AlSi10; Mg; Thermal analysis; Microstructure; ALUMINUM-ALLOY; MECHANICAL-PROPERTIES; MELTED ALSI10MG; MICROSTRUCTURE; POWDER; ROUGHNESS; PRODUCTS; PROPERTY; STRENGTH; BEHAVIOR;
D O I：
10.1016/j.jallcom.2018.04.298
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In Selective Laser Melting (SLM) both structural and functional properties of built parts are drastically affected by the process parameters, such as laser beam power, exposure time and building platform temperature. The effect of the mentioned parameters on the microstructure evolution and mechanical properties of AlSi10 Mg SLM builts were investigated. It was found that chemical composition, melting point and phases morphology were not varied. On the contrary, thermal analysis indicated that Mg2Si precipitation as well as Si spheroidization phenomena were slightly affected by laser energy density. This effect becomes relevant for choosing the right thermal treatments required for mechanical property optimization of SLM built Al alloy components. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：100 / 107
页数：8
相关论文
共 43 条
  • [1] Selective laser melting of aluminum alloys
    Aboulkhair, Nesma T.
    Everitt, Nicola M.
    Maskery, Ian
    Ashcroft, Ian
    Tuck, Chris
    [J]. MRS BULLETIN, 2017, 42 (04) : 311 - 319
  • [2] Aboulkhair NT, 2014, Addit. Manuf., V1-4, P77, DOI [10.1016/j.addma.2014.08.001, DOI 10.1016/J.ADDMA.2014.08.001]
  • [3] New Developments of Laser Processing Aluminium Alloys via Additive Manufacturing Technique
    Bartkowiak, Konrad
    Ullrich, Sven
    Frick, Thomas
    Schmidt, Michael
    [J]. LASERS IN MANUFACTURING 2011: PROCEEDINGS OF THE SIXTH INTERNATIONAL WLT CONFERENCE ON LASERS IN MANUFACTURING, VOL 12, PT A, 2011, 12 : 393 - 401
  • [4] Bassani Paola, 2016, Key Engineering Materials, V710, P83, DOI 10.4028/www.scientific.net/KEM.710.83
  • [5] On the limitations of Volumetric Energy Density as a design parameter for Selective Laser Melting
    Bertoli, Umberto Scipioni
    Wolfer, Alexander J.
    Matthews, Manyalibo J.
    Delplanque, Jean-Pierre R.
    Schoenung, Julie M.
    [J]. MATERIALS & DESIGN, 2017, 113 : 331 - 340
  • [6] Selective laser melting of AlSi10Mg: Effects of scan direction, part placement and inert gas flow velocity on tensile strength
    Bin Anwar, Ahmad
    Quang-Cuong Pham
    [J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2017, 240 : 388 - 396
  • [7] Additive manufactured AlSi10Mg samples using Selective Laser Melting (SLM): Microstructure, high cycle fatigue, and fracture behavior
    Brandl, Erhard
    Heckenberger, Ulrike
    Holzinger, Vitus
    Buchbinder, Damien
    [J]. MATERIALS & DESIGN, 2012, 34 : 159 - 169
  • [8] Selective laser melting of aluminum die-cast alloy-Correlations between process parameters, solidification conditions, and resulting mechanical properties
    Buchbinder, D.
    Meiners, W.
    Wissenbach, K.
    Poprawe, R.
    [J]. JOURNAL OF LASER APPLICATIONS, 2015, 27
  • [9] High Power Selective Laser Melting (HP SLM) of Aluminum Parts
    Buchbinder, D.
    Schleifenbaum, H.
    Heidrich, S.
    Meiners, W.
    Bueltmann, J.
    [J]. LASERS IN MANUFACTURING 2011: PROCEEDINGS OF THE SIXTH INTERNATIONAL WLT CONFERENCE ON LASERS IN MANUFACTURING, VOL 12, PT A, 2011, 12 : 271 - 278
  • [10] Investigation of the accuracy and roughness in the laser powder bed fusion process
    Calignano, F.
    [J]. VIRTUAL AND PHYSICAL PROTOTYPING, 2018, 13 (02) : 97 - 104
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