Evolution of the microstructure and oxidation resistance in co-sputtered Zr-Y-N coatings

被引：10

作者：

Wu, Zhengtao ^{[1
]}

Qi, Zhengbing ^{[2
]}

Zhang, Dongfang ^{[1
]}

Wang, Zhoucheng ^{[1
]}

机构：

[1] Xiamen Univ, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China

[2] Xiamen Univ Technol, Coll Mat Sci & Engn, Xiamen 361005, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2014年 / 321卷

基金：

中国国家自然科学基金;

关键词：

ZrN coating; Y addition; Microstructure; Oxidation resistance; YTTRIA-STABILIZED ZIRCONIA; RAY PHOTOELECTRON-SPECTROSCOPY; MECHANICAL-PROPERTIES; PHASE-STABILITY; THIN-FILMS; SEGREGATION; TEMPERATURE; ALLOYS; HARD;

D O I：

10.1016/j.apsusc.2014.09.152

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This study investigates the influence of Y addition to the microstructure and oxidation resistance of ZrN coating. Zr-Y-N coatings with a 0-5.8 at.% Y addition were fabricated by reactive co-sputtering in an Ar-N-2 atmosphere. The results indicate that solid solution-type Zr-Y-N coatings show a columnar structure with a strong (1 1 1) preferred orientation. The grain size decreases from 76 to 21 nm with an increase in the amount of Y from 0 to 5.8 at.%. The oxidation results demonstrate that the most beneficial addition of Y to improve the oxidation resistance of ZrN coating is 1.0 at.%. An excessive addition of Y produces detrimental effects. Cracking in the oxide scale and oxygen inward diffusion through the scale have been identified as the primary reasons for the loss of oxidation resistance. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：268 / 274

页数：7

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