Erosion-Corrosion Attack of Metals at High Temperatures

该研究计划涉及的机制， 金属和合金的腐蚀变质， 高温腐蚀。 纯金属和合金都是 在受控气氛下暴露于硬颗粒侵蚀 条件 变量包括金属合金状况、冲击 颗粒粒径，颗粒速度和冲击角，冲蚀 温度和气体气氛。 铬的行为和 正在检查合金上的氧化铝氧化皮，以及 气体流中存在的二氧化硫的影响。 性质 的侵蚀表面进行检查，以揭示变化， 浓度分布和金相结构。

This research program addresses the mechanisms of deterioration of metals and alloys subjected to erosion and corrosion at high temperatures. Both pure metals and alloys are exposed to hard particle erosion under controlled atmospheric conditions. Variables include metal alloy condition, impacting particle size, particle velocity and impact angle, erosion temperature and gas atmosphere. The behavior of chromia and alumina scales on the alloys is under examination, as well as effects of sulfur dioxide present in the gas stream. The nature of the eroding surfaces are examined to reveal changes in concentration profiles and metallographic structure.