Strengthening of ferrous binder jet 3D printed components through bronze infiltration

被引：35

作者：

Cordero, Zachary C. ^{[1
,2
]}

Siddel, Derek H. ^{[1
]}

Peter, William H. ^{[1
,2
]}

Elliott, Amelia M. ^{[1
,2
]}

机构：

[1] Oak Ridge Natl Lab, Mfg Demonstrat Facil, Knoxville, TN 37932 USA

[2] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA

来源：

ADDITIVE MANUFACTURING | 2017年 / 15卷

关键词：

Powder metallurgy; Microstructure design; Additive manufacturing; Sintering; Infiltration; POWDER-METALLURGY; ALLOY;

D O I：

10.1016/j.addma.2017.03.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Net-shape 98% dense objects have been fabricated from a rapidly solidified ferrous powder using binder jet 3D printing and molten bronze infiltration. X-ray diffraction, scanning electron microscopy, and differential thermal analysis were used to characterize the structural evolution of the powder feedstock during an infiltration heating cycle. Microindentation and bend tests were performed on the infiltrated material to evaluate its mechanical properties. It was found that infiltration improved the strength of the sintered preforms by eliminating the stress concentration points at interparticle necks. Published by Elsevier B.V.

引用

页码：87 / 92

页数：6

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