Composition, structure and mechanical properties of metal oxide coatings produced on titanium using plasma spraying and modified by micro-arc oxidation

被引：35

作者：

Koshuro, Vladimir ^{[1
]}

Fomin, Aleksandr ^{[1
]}

Rodionov, Igor ^{[1
]}

机构：

[1] Yuri Gagarin State Tech Univ Saratov, Inst Elect Technol & Engn, 77 Politech Skaya Str, Saratov 410054, Russia

来源：

CERAMICS INTERNATIONAL | 2018年 / 44卷 / 11期

关键词：

Alumina; Plasma spraying; Titania; Micro-arc oxidation; BIOMEDICAL APPLICATIONS; ELECTROLYTIC OXIDATION; CORROSION-RESISTANCE; THERMAL-OXIDATION; SURFACE-TREATMENT; DENTAL IMPLANTS; ALLOYS; MICROSTRUCTURE; INDUCTION;

D O I：

10.1016/j.ceramint.2018.04.056

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Metal oxide coatings on VT6 titanium alloy were formed by plasma spraying of aluminum oxide powder and subsequent microarc oxidation at a current density from 1 to 3 kA/m(2). As a result of combined treatment, metal oxide coatings consisting of a mixture of aluminum and titanium oxides were obtained on the surface of titanium samples. The most pronounced changes in the morphology of the plasma-sprayed coating were observed at the highest current density of 3 kA/m(2). The open porosity decreased from 56% to 38% due to the modification by micro-arc discharges, whereas the microhardness increased from 1013 +/- 150 HV to 1639 +/- 31 HV.

引用

页码：12593 / 12599

页数：7

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