Conditions for ignition of iron and carbon steel in oxygen

被引：23

作者：

Bolobov, VI ^{[1
]}

机构：

[1] Russian Sci Ctr Appl Chem, St Petersburg 197198, Russia

来源：

COMBUSTION EXPLOSION AND SHOCK WAVES | 2001年 / 37卷 / 03期

关键词：

Oxidation; Oxygen; Iron; Dynamical System; Mechanical Engineer;

D O I：

10.1023/A:1017523922778

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

It is shown that the cylindrical iron and carbon-steel specimens of diameters 1.5 and 3 mm ignite in oxygen at the moment the oxide film loses its protective properties, supposedly, as a result of melting of its main component (FeO) at 1644 K. The ignition temperature does not depend on the oxygen pressure (in the range 0.2-20 MPa). The ignition is preceded by substantial (about 100 K) self-heating of a specimen owing to the heat released upon oxidation of the metal. A carbon-steel foil ignites in oxygen (0.14-0.6 MPa) according to the Semenov-Frank-Kamenetskii mechanism at an initial surface temperature not lower than 1233 K.

引用

页码：292 / 296

页数：5