Improved Cyclic Oxidation Resistance of Ti-6Al-4V Alloy by Al2O3 Coating Derived from Sol-Gel Method

被引：4

作者：

Gao, Chunxiang ^{[1
]}

Gao, Yanhui ^{[2
]}

机构：

[1] Shenyang Univ Chem Technol, Phys & Chem Testing Ctr, Shenyang 110142, Peoples R China

[2] Shenyang Univ Chem Technol, Coll Appl Chem, Shenyang 110142, Peoples R China

来源：

ADVANCED SCIENCE LETTERS | 2011年 / 4卷 / 01期

关键词：

Alumina Thin Film; Cyclic Oxidation; Sol-Gel Processing; Ti-6Al-4V; HIGH-TEMPERATURE OXIDATION; TIAL-BASED ALLOY; SIO2; FILM; PROTECTION; BEHAVIOR; NB;

D O I：

10.1166/asl.2011.1187

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Alumina coating derived by sol-gel processing was deposited on Ti-6Al-4V alloy by dip-coating technique. The optimal thickness of the applied coating on the present alloy was determined in terms of the relationship between the average parabolic rate constants of isothermal oxidation and the coating thickness. Cyclic oxidation at 600 degrees C and 700 degrees C in static air of the coated specimens with optimized alumina coating and uncoated ones were performed to investigate the effect of the alumina coating on the cyclic oxidation behavior of the Ti-6Al-4V alloy by thermogravimetry. The present film improved the cyclic oxidation resistance of the alloy in air. Severe spallation of the scales was observed on the blank specimens, but not on the coated ones.

引用

页码：146 / 149

页数：4

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