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

被引：0
|
作者：
Christopher Rock
Edgar Lara-Curzio
Betsy Ellis
Christopher Ledford
Donovan N. Leonard
Rangasayee Kannan
Michael Kirka
Timothy Horn
机构：
[1] Center for Additive Manufacturing and Logistics,Manufacturing Science Division
[2] North Carolina State University,Manufacturing Demonstration Facility
[3] Oak Ridge National Laboratory,Department of Mechanical and Aerospace Engineering
[4] Oak Ridge National Laboratory,undefined
[5] North Carolina State University,undefined
来源：
JOM | 2020年 / 72卷
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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.
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页码：4202 / 4213
页数：11
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