Inconel 625 lattice structures manufactured by selective laser melting (SLM): Mechanical properties, deformation and failure modes

被引：348

作者：

Leary, Martin ^{[1
,2
]}

Mazur, Maciej ^{[1
,2
]}

Williams, Hugh ^{[1
]}

Yang, Eric ^{[1
,2
]}

Alghamdi, Ahmad ^{[1
]}

Lozanovski, Bill ^{[1
,2
]}

Zhang, Xuezhe ^{[1
]}

Shidid, Darpan ^{[1
]}

Farahbod-Sternahl, Lena ^{[4
,5
]}

Witt, Gerd ^{[5
]}

Kelbassa, Ingomar ^{[4
]}

Choong, Peter ^{[2
,3
]}

Qian, Ma ^{[1
]}

Brandt, Milan ^{[1
,2
]}

机构：

[1] RMIT Univ, Sch Engn, RMIT Ctr Addit Mfg, Melbourne, Vic, Australia

[2] RMIT Univ, Sch Engn, ARC Training Ctr Addit Biomfg, POB 71, Melbourne, Vic 3083, Australia

[3] St Vincents Hosp, Dept Surg, Melbourne, Vic, Australia

[4] Siemens AG, Power & Gas, Huttenstr 12, D-10553 Berlin, Germany

[5] Univ Duisburg Essen, Inst Product Engn, Mfg Technol, Lotharstr 1, D-47057 Duisburg, Germany

来源：

MATERIALS & DESIGN | 2018年 / 157卷

基金：

澳大利亚研究理事会;

关键词：

Additive manufacture; Lattice structures; Selective laser melting (SLM); Inconel; 625; Design for additive manufacture (DFAM); THERMAL-CONDUCTIVITY; ADDITIVE MANUFACTURE; MICROSTRUCTURE; TEMPERATURE; GENERATION; POWDER;

D O I：

10.1016/j.matdes.2018.06.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Additive Manufacture (AM) enables the fabrication of highly complex lattice structures with exceptional engineering properties. Inconel is a technically useful material in that it provides high resistance to oxidisation, creep and loss of mechanical properties at elevated temperatures. The combination of Inconelmaterial properties and the geometric freedom of AM provides a unique opportunity for the fabrication of engineered structures with exceptional strength and stiffness at elevated temperatures, as for example is required for high temperature turbomachinery. Despite the associated technical opportunities, there exists no design data on the mechanical response, deformation characteristics and failure modes of AM Inconel 625 lattice structures. This research provides a comprehensive reference for the mechanical response of Inconel 625 lattice structures fabricated by Selective Laser Melting (SLM). Furthermore, the high ductility of Inconel 625 lattice enables novel insight into the structural mechanics of AM lattice, and the associated deformation photography provides a reference for the validation and verification of numerical models of AM lattice behaviour. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：179 / 199

页数：21

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