Additive Manufacturing of Pure Mo and Mo plus TiC MMC Alloy by Electron Beam Powder Bed Fusion

被引：14

作者：

Rock, Christopher ^{[1
]}

Lara-Curzio, Edgar ^{[2
]}

Ellis, Betsy ^{[2
,3
]}

Ledford, Christopher ^{[2
,3
]}

Leonard, Donovan N. ^{[2
,3
]}

Kannan, Rangasayee ^{[2
,3
]}

Kirka, Michael ^{[2
,3
]}

Horn, Timothy ^{[1
,4
]}

机构：

[1] North Carolina State Univ, Ctr Addit Mfg & Logist, Raleigh, NC USA

[2] Oak Ridge Natl Lab, Mfg Sci Div, Oak Ridge, TN 37830 USA

[3] Oak Ridge Natl Lab, Mfg Demonstrat Facil, Knoxville, TN 37830 USA

[4] North Carolina State Univ, Dept Mech & Aerosp Engn, Raleigh, NC USA

来源：

JOM | 2020年 / 72卷 / 12期

基金：

美国国家科学基金会;

关键词：

CRYSTALLOGRAPHIC TEXTURE; LASER; MICROSTRUCTURE; DENSIFICATION; CERMETS;

D O I：

10.1007/s11837-020-04442-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A metal matrix composite powder of molybdenum (Mo) + TiC was produced by mechanical alloying (MA) and used in additive manufacturing by electron beam powder bed fusion along with pure Mo powder to form sandwich structures. The Mo + TiC solid layers formed mixed structures of Mo with discrete TiC particles, eutectic Mo + TiC, and Mo dendrites. Thermodynamic modeling showed that the system contained an invariant eutectic reaction in the composition range used and indicated that the system was highly sensitive to changes in composition and temperature.

引用

页码：4202 / 4213

页数：12

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