T92钢700 ℃下料浆渗铝机理研究
龚兵兵, 刘光明, 安春香, 梅林波, 张帮彦

Growth Mechanism of Aluminide Coating on T92 Steel Prepared by Slurry Aluminizing at 700 ℃
GONG Bingbing, LIU Guangming, AN Chunxiang, MEI Linbo, ZHANG Bangyan
表4 Fe和Al反应的摩尔熵变与温度的关系式
Table 4 Relationships between molar entropy change and temperature for the reactions of Fe and Al
ReactionT / KΔrS / (J·mol-1) (933-1298K)
Fe+Al→B2298-933-4.74-11.20lnT / 298-0.0338(T-298)
933-1298-4.74-11.20lnT / 298-0.0338(T-298)-10467 / T
2Fe+5Al→η298-933-42.34-109.17lnT / 298-0.1152(T-298)
933-1298-42.34-109.17lnT / 298-0.1152(T-298)-52335 / T
Fe+3Al→θ298-933-16.85-50.74lnT / 298-0.0638(T-298)
933-1298-16.85-50.74lnT / 298-0.0638(T-298)-31401 / Τ