Effect of Mechanical Activation on the in situ Formation of TiB2 Particulates in the Powder Mixture of TiH2 and FeB

• Autorzy: Huynh X.-K. , Kim B.-W. , Kim J. S.

Identyfikatory

DOI

10.1515/amm-2017-0215

• Języki publikacji: EN

Abstrakty

EN

The in situ formation of TiB₂ particulates via an interface reaction between Ti and FeB powders was studied. The effects of mechanical activation by high-energy milling on the decomposition of TiH₂ and the interface reactions between Ti and FeB powders to form TiB₂ were investigated. Powder mixtures were fabricated using planetary ball-milling under various milling conditions. The specific ball-milling energy was calculated from the measured electrical power consumption during milling process. High specific milling energy (152.6 kJ/g) resulted in a size reduction and homogeneous dispersion of constituent powders. This resulted in a decrease in the decomposition temperature of TiH₂ and an increase in the formation reaction of TiB₂ particulates in the Fe matrix, resulting in a homogeneous microstructure of nanoscale TiB₂ evenly distributed within the Fe matrix. In contrast, the powder mixture milled with low specific milling energy (36.5 kJ/g) showed an inhomogeneous microstructure composed of relatively large Fe-Fe₂ B particles surrounded by a thin layer of Fe-TiB₂ within a finely dispersed Fe-TiB₂ matrix region.

Słowa kluczowe

EN

mechanical activation; in situ formation; TiB2 particulate; Fe-matrix; specific ball-milling energy

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2017
• Tom: Vol. 62, iss. 2B
• Strony: 1393--1398
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wzory

Twórcy

autor

Huynh X.-K.

• Faculty of Mechanical Technology, Industrial University of Ho Chi Minh City, No. 12 Nguyen Van Bao, Go Vap District, Ho Chi Minh City, Viet Nam

autor

Kim B.-W.

• School of Electrical Engineering, University of Ulsan, Korea (Republic of)

autor

Kim J. S.

• School of Materials Science and Engineering, University of Ulsan, 93 Daehak-Ro, Nam-Gu, Ulsan 44610, Korea (Republic of)

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)