High temperature oxidation of Cr-Mo-V tool steel in carbon dioxide

被引：7

作者：

Chaliampalias, D. ^{[1
]}

Vourlias, G. ^{[1
]}

Pavlidou, E. ^{[1
]}

Chrissafis, K. ^{[1
]}

机构：

[1] Aristotle Univ Thessaloniki, GR-54006 Thessaloniki, Greece

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2013年 / 113卷 / 03期

关键词：

Metals and Alloys; Microstructure; Scanning Electron Microscopy; Thermogravimetric measurements; ALLOYS; METAL;

D O I：

10.1007/s10973-013-2947-0

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This study aims to examine the oxidation resistance and kinetics of Cr, Mo, and V containing tool steel (Calmax) when exposed in CO2 high temperature environment by thermogravimetric measurements, X-ray diffraction analysis, and microscopic observation. The tool steel samples begin to oxidize at 480 A degrees C while over 600 A degrees C, the oxidation rate increases significantly. Finally, at 900 A degrees C, the oxidation rate is significantly high. The activation energy of the oxidation was calculated as 160.1 kJ mol(-1). Microscopically, the thickness of the scale was found to increase with the exposure temperature, and the as formed scales consisted of two distinguishable oxide layers.

引用

页码：1309 / 1315

页数：7

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