Rapid fabrication of Al-based bulk-form nanocomposites with novel reinforcement and enhanced performance by selective laser melting

被引：233

作者：

Gu, Dongdong ^{[1
]}

Wang, Hongqiao ^{[1
]}

Dai, Donghua ^{[1
]}

Yuan, Pengpeng ^{[1
]}

Meiners, Wilhelm ^{[2
]}

Poprawe, Reinhart ^{[2
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Peoples R China

[2] Rhein Westfal TH Aachen, Chair Laser Technol LLT, Fraunhofer Inst Laser Technol ILT, D-52074 Aachen, Germany

来源：

SCRIPTA MATERIALIA | 2015年 / 96卷

基金：

中国国家自然科学基金;

关键词：

Laser treatment; Powder consolidation; Metal matrix composites (MMCs); Nanocomposite; Selective laser melting (SLM); IN-SITU FABRICATION; COMPOSITES; MICROSTRUCTURE; POWDER; STATE;

D O I：

10.1016/j.scriptamat.2014.10.011

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A novel ring-structured nanoscale TiC reinforcement with a regular distribution was tailored along the grain boundaries of the matrix by selective laser melting (SLM) to produce TiC/AlSi10 Mg nanocomposite parts. Relative to the SLM-processed unreinforced AlSi10 Mg part, the TiC/AlSi10 Mg nanocomposite part with the novel reinforcement architecture exhibited elevated microhardness (188.3 HV0.1) and tensile strength (486 MPa) without a reduction in elongation (10.9%), due to the combined effects of grain refinement and grain boundary strengthening caused by the ring-structured nanoscale TiC reinforcement. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：25 / 28

页数：4

共 26 条

[1] Microstructure and wear studies of laser clad Al-Si/SiC(p) composite coatings [J].

Anandkumar, R. ;

Almeida, A. ;

Colaco, R. ;

Vilar, R. ;

Ocelik, V. ;

De Hosson, J. Th. M. .

SURFACE & COATINGS TECHNOLOGY, 2007, 201 (24) :9497-9505

[2] Model of the primary rearrangement processes at liquid phase sintering and selective laser sintering due to biparticle interactions [J].

Anestiev, LA ;

Froyen, L .

JOURNAL OF APPLIED PHYSICS, 1999, 86 (07) :4008-4017

[3] Mechanical induced reaction in Al-CuO system for in-situ fabrication of Al based nanocomposites [J].

Arami, H. ;

Simchi, A. ;

Reihani, S. M. Seyed .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 465 (1-2) :151-156

[4] 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

[5] Laser processing of SiC-particle-reinforced coating on titanium [J].

Das, Mitun ;

Balla, Vamsi Krishna ;

Basu, Debabrata ;

Bose, Susmita ;

Bandyopadhyay, Amit .

SCRIPTA MATERIALIA, 2010, 63 (04) :438-441

[6] An investigation of the tensile and compressive properties of Al6061 and its nanocomposites in as-cast state and in extruded condition [J].

Ezatpour, H. R. ;

Sajjadi, S. A. ;

Sabzevar, M. H. ;

Huang, Y. Z. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 607 :589-595

[7] Laser additive manufacturing of metallic components: materials, processes and mechanisms [J].

Gu, D. D. ;

Meiners, W. ;

Wissenbach, K. ;

Poprawe, R. .

INTERNATIONAL MATERIALS REVIEWS, 2012, 57 (03) :133-164

[8] Selective laser melting of TiC/Ti bulk nanocomposites: Influence of nanoscale reinforcement [J].

Gu, Dongdong ;

Meng, Guangbin ;

Li, Chuang ;

Meiners, Wilhelm ;

Poprawe, Reinhart .

SCRIPTA MATERIALIA, 2012, 67 (02) :185-188

[9] In situ TiBw/Ti-6Al-4V composites with novel reinforcement architecture fabricated by reaction hot pressing [J].

Huang, L. J. ;

Geng, L. ;

Li, A. B. ;

Yang, F. Y. ;

Peng, H. X. .

SCRIPTA MATERIALIA, 2009, 60 (11) :996-999

[10] State of residual stress in laser-deposited ceramic composite coatings on aluminum alloys [J].

Kadolkar, P. B. ;

Watkins, T. R. ;

De Hosson, J. Th. M. ;

Kooi, B. J. ;

Dahotre, N. B. .

ACTA MATERIALIA, 2007, 55 (04) :1203-1214

← 1 2 3 →