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

被引：76

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

页码：100 / 107

页数：8

共 43 条

[1] Selective laser melting of aluminum alloys [J].

Aboulkhair, Nesma T. ;

Everitt, Nicola M. ;

Maskery, Ian ;

Ashcroft, Ian ;

Tuck, Chris .

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 [J].

Bartkowiak, Konrad ;

Ullrich, Sven ;

Frick, Thomas ;

Schmidt, Michael .

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 [J].

Bertoli, Umberto Scipioni ;

Wolfer, Alexander J. ;

Matthews, Manyalibo J. ;

Delplanque, Jean-Pierre R. ;

Schoenung, Julie M. .

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 [J].

Bin Anwar, Ahmad ;

Quang-Cuong Pham .

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 [J].

Brandl, Erhard ;

Heckenberger, Ulrike ;

Holzinger, Vitus ;

Buchbinder, Damien .

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 [J].

Buchbinder, D. ;

Meiners, W. ;

Wissenbach, K. ;

Poprawe, R. .

JOURNAL OF LASER APPLICATIONS, 2015, 27

[9] High Power Selective Laser Melting (HP SLM) of Aluminum Parts [J].

Buchbinder, D. ;

Schleifenbaum, H. ;

Heidrich, S. ;

Meiners, W. ;

Bueltmann, 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 [J].

Calignano, F. .

VIRTUAL AND PHYSICAL PROTOTYPING, 2018, 13 (02) :97-104

← 1 2 3 4 5 →