Erosion-Corrosion Attack of Metals at High Temperatures

高温下金属的侵蚀腐蚀

• 批准号: 8818427
• 负责人: Neil Birks
• 金额: $ 27.19万
• 依托单位: University of Pittsburgh
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-02-01 至 1993-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8818427&HistoricalAwards=false
• 关键词: Erosion; Corrosion; Attack; Metals; Temperatures

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.

该研究计划致力于研究金属和合金在高温下遭受侵蚀和腐蚀的劣化机制。 纯金属和合金在受控大气条件下都会受到硬颗粒侵蚀。 变量包括金属合金条件、冲击颗粒尺寸、颗粒速度和冲击角度、侵蚀温度和气体气氛。 合金上氧化铬和氧化铝氧化皮的行为以及气流中存在的二氧化硫的影响正在接受检查。 检查侵蚀表面的性质，以揭示浓度分布和金相结构的变化。