Spontaneous Formation of Titanium Nitride on the Surface of a Ti Rod Induced by Electro-Discharge-Heat-Treatment in an N2 Atmosphere

• Autorzy: Lee W. H. , Yoon Y. H. , Kim Y. H. , Lee Y. K. , Kim J. Y. , Chang S. Y.

Identyfikatory

DOI

10.1515/amm-2017-0193

• Języki publikacji: EN

Abstrakty

EN

A single pulse of 2.0 to 3.5 kJ of input energy from a 450 mF capacitor was applied to a commercially pure Ti rod in a N₂ atmosphere. The surface of the Ti rod transformed from TiO₂ into titanium nitride in times as short as 159 msec, providing a bimodal morphology of the cross-section. A much higher value of hardness that was observed at the edge of the cross-section was attributed to nitrogen-induced solid-solution hardening that occurred during the electrical discharge process. The activation energy (E_a) for the diffusion process was estimated to be approximately 86.9 kJ/mol. Results show that the electrical discharge process is a possible potential method for the nitriding of Ti; advantages include a short processing time and control of the nitrided layer without dimensional changes.

Słowa kluczowe

EN

titanium; surface modification; diffusion; heat treatment; XPS

• 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: 1281--1285
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Lee W. H.

• Sejong University, Faculty of Nanotechnology and Advanced Materials Engineering, Seoul 05000, Korea

autor

Yoon Y. H.

• Sejong University, Faculty of Nanotechnology and Advanced Materials Engineering, Seoul 05000, Korea

autor

Kim Y. H.

• Wonkwang Health Science University, Department of Dental Laboratory, Iksan 54538, Korea

autor

Lee Y. K.

• Uiduk University, Division of Green Energy Engineering, Kyeongju 38004, Korea

autor

Kim J. Y.

• Uiduk University, Division of Green Energy Engineering, Kyeongju 38004, Korea

autor

Chang S. Y.

• Korea Aerospace University, Department of Materials Engineering, Goyang-Si 10510, Korea

Bibliografia

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Uwagi

PL

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