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首页> 美国政府科技报告 >Thermochemical Stability Diagrams for Condensed Phases and Volatility Diagrams for Volatile Species over Condensed Phases in Twenty Metal-Sulfur-Oxygen Systems Between 1150 and 1450 exp 0 K.
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Thermochemical Stability Diagrams for Condensed Phases and Volatility Diagrams for Volatile Species over Condensed Phases in Twenty Metal-Sulfur-Oxygen Systems Between 1150 and 1450 exp 0 K.

机译：二十金属 - 硫 - 氧系统中凝聚相的挥发性物质的凝聚相和挥发性图的热化学稳定性图表在1150和1450之间。

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This work begins with a description of the thermochemistry of gaseous species in the H-O-S-C system and the role of condensed and volatile species in oxidation and hot corrosion phenomena. The major part of the report is a description of the stability diagrams and diagrams for the volatile metal oxide and sulfide species in the A1-O-S, Ca-O-S, Ce-O-S, Co-O-S, Cr-O-S, Fe-O-S, Hf-O-S, K-O-S, Mg-O-S, Mn-O-S, Mo-O-S, Na-O-S, Ni-O-S, Nb-O-S, Si-O-S, Ta-O-S, Ti-O-S, V-O-S, W-O-S, and Zr-O-S systems. Log p/sub O sub 2 / vs log p/sub S sub 2 / diagrams are developed to show the stability regions for the several metal, oxide, sulfide and sulfate phases for four temperatures 1150, 1250, 1342, and 1450 exp 0 K. Log p/sub M//sub x//sub O///sub y/ vs log p/sub O sub 2 / and log p/sub M//sub x//sub S//sub y/ vs log p/sub S sub 2 / are developed for twenty oxide and sulfide systems at 1250 exp 0 K. Log p/sub M//sub x//sub O//sub y/ vs 1/T and log p/sub M//sub x//sub S//sub y/ vs 1/T diagrams are developed to summarize the results. Here log p/sub M//sub x//sub O//sub y/ and log p/sub M//sub x//sub S//sub y/ refer to the several metal, oxide and sulfide vapor species. The importance of the volatile species, melting points of the condensed phases and constitution of the condensed phases as a function of the oxygen and sulfur potential of the reaction environment is discussed with regard to high temperature oxidation and hot corrosion of metals and alloys. (ERA citation 05:026198)

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