Studies on metal dusting : reaction mechanisms and their control

金属喷粉研究：反应机理及其控制

• 批准号: DP0452265
• 负责人: Em/Prof David Young
• 金额: $ 25.48万
• 依托单位: The University of New South Wales
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2004
• 资助国家: 澳大利亚
• 起止时间: 2004-03-31 至 2007-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0452265
• 关键词: Studies; metal; dusting; reaction; mechanisms

Gases which are supersaturated with carbon can react at high temperatures with steels and nickel-base alloys to destroy them, producing a dust of carbon plus metal and/or metal carbides. The mechanism is not properly understood, and the rate of the process impossible to predict. This program will dissect the mechanism using kinetic studies and electron microscopy of precisely located parts of the reacting system. Ways of controlling the process via alloy compositional changes will be explored.

含碳过饱和的气体在高温下会与钢和镍基合金发生反应，破坏它们，产生碳和金属和/或金属碳化物的粉尘。其机制尚未得到正确理解，而且该过程的速率也无法预测。 该计划将使用动力学研究和电子显微镜对反应系统的精确定位部分进行剖析。将探索通过合金成分变化控制工艺的方法。