Selective laser melting of TiC/Ti bulk nanocomposites: Influence of nanoscale reinforcement

被引：197

作者：

Gu, Dongdong ^{[1
]}

Meng, Guangbin ^{[1
]}

Li, Chuang ^{[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, Fraunhofer Inst Laser Technol ILT, Chair Laser Technol LLT, D-52074 Aachen, Germany

来源：

SCRIPTA MATERIALIA | 2012年 / 67卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Nanocomposite; Metal matrix composite (MMC); Laser treatment; Solid freeform processes; Selective laser melting (SLM); METAL-MATRIX COMPOSITES; INJECTION; BEHAVIOR; TI; PARTICLES; COATINGS; TITANIUM; POWDER; LAYERS; ALLOY;

D O I：

10.1016/j.scriptamat.2012.04.013

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Selective laser melting (SLM), as a new production route, was applied to prepare nanocrystalline TIC-reinforced Ti matrix nanocomposites. The microstructural and mechanical properties of SLM-processed nanocomposites were sensitive to the nanoscale TiC addition. The optimal TiC content was determined to be 12.5 wt.%, and the homogeneously dispersed TIC reinforcement had a nanoscale lamellar structure that was completely different to the starting nanoparticle morphology. The 98.3% dense TiC/Ti nanocomposites had an elevated microhardness 577HV(0.2), a considerably low coefficient of friction 0.19, and a reduced wear rate 2.3 x 10(-16) m(3) N-1 m(-1) lap(-1). (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：185 / 188

页数：4

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