Reactive Plasma Sprayed TiN Coating and Its Thermal Stability

TiN coating was prepared by reactive plasma spraying in the Ar and N2 containing plasma jet. The resuits of XRD show that the TiN coating consists of TiN and Ti3 O, neither Ti2 N nor TiO2 phases. The toughening mechanism was characterized by analyzing the SEM morphologies of the TiN coating＇s indent...

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Veröffentlicht in:	Journal of iron and steel research, international international, 2007-09, Vol.14 (5), p.71-75
Hauptverfasser:	ZOU, Dong-li, YAN, Dian-ran, HE, Ji-ning, LI, Xiang-zhi, DONG, Yan-chun, ZHANG, Jian-xin
Format:	Artikel
Sprache:	eng
Schlagworte:	plasma spraying reactive plasma spraying TiN coating 反应等离子体喷雾热稳定性等离子体喷雾锡涂层
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Beschreibung
Zusammenfassung:	TiN coating was prepared by reactive plasma spraying in the Ar and N2 containing plasma jet. The resuits of XRD show that the TiN coating consists of TiN and Ti3 O, neither Ti2 N nor TiO2 phases. The toughening mechanism was characterized by analyzing the SEM morphologies of the TiN coating＇s indentation of microhardness and fracture surfaces. The results indicate that the coating possesses a high toughness. The adhesion strength among the TiN layers is 25.88 MPa, which is slightly lower than that of the Ni/AI bonding coating. The oxidation process of the RPS TiN coating is TiN→Ti3 O→TiO2.
ISSN:	1006-706X 2210-3988
DOI:	10.1016/S1006-706X(07)60078-8