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| 1 | SULFIDATION OF Co-15wt%Y ALLOY IN H_2-H_2S MIXTURES AT 600-800℃显示文摘SULFIDATIONOFCo-15wt%YALLOYINH_2-H_2SMIXTURESAT600-800℃NIUYan;F.GESMUNDO;WUWeitao;ZENGChaoliu;F.VIANI;(StateKeyLaboratoryforCo... | NIU Yan F.GESMUNDO WU Weitao ZENG Chaoliu F.VIANI (State Key Laboratory for Corrosion and Protection,Institute of Corrosion and Protection of Metals,Chinese Academy of Sciences,Shenyang.110015,China)(Istituto di Chimica,Facolta’di Ingegneria,Universita’di | 1996 | Acta Metallurgica Sinica(English Letters)1996，9，1： | 1 |
| 2 | N_2-O_2-SO_2气氛中沉积盐引起Fe_3Al和FeAl的热腐蚀显示文摘研究表面分別有混合盐Na_2SO_4-NaCl,Na_2SO_4-V_2O_5和纯Na_2SO_4沉积并在模拟燃气气氛中Fe_3Al和FeAl于600℃的热腐蚀,在所有试验条件下两种合金均发生热腐蚀。随试验时间的延长、纯Na_2SO_4和Na_2SO_4-NaCI引起的腐蚀明显减缓,而Na_2SO_4-V_2O_5的腐蚀则加剧并长时持续。FeAl一般较之Fe_3AI耐蚀,只有在Na_2SO_4-NaCl情况下两者腐蚀性能相近。所有合金的腐蚀产物层总是由一高铁的外层和含铝与铁和少量硫的内层组成,后者的成分随所涂盐的组成而变化。在一定程度上腐蚀机制涉及氧化-硫化与氧化物的熔融等。 | 牛焱 吴维(山文) F.Gesmundo F.Viani | 1993 | 腐蚀科学与防护技术1993，5，1： | 1 |
| 3 | Cu-25Ni-25Ag三元合金在600℃和700℃空气中的氧化显示文摘研究了Cu 2 5Ni 2 5Ag合金在 6 0 0℃和 70 0℃空气中的氧化。合金由富Ag的α相与Cu Ni固溶体 β相组成。氧化速率大致服从抛物线规律 ,除短时间的加速氧化外 ,随着氧化的进行氧化速率逐渐减小。尽管存在Ag和Ni,但合金成膜速率与纯Cu的相近。在不同温度下合金都形成了外层为CuO ,内层为Cu2 O ,NiO和Ag颗粒组成的复杂氧化膜。同时 ,氧化膜最前沿的Cu Ni固溶体颗粒仅表面部分氧化 。 | 赵泽良 牛焱 F.Gesmundo 吴维 | 2001 | 中国有色金属学报2001，11，2： | 1 |
| 4 | Air oxidation of Cu-50Ni and Cu-70Ni alloys at 800℃显示文摘The air oxidation of Cu Ni alloys with 50% and 70% nickel (mole fraction) at 800?℃ was studied. The kinetic curves for the oxidation of the two alloys are complex and deviate from the parabolic rate law. Typical double layered scales are produced, which consist of a CuO outer layer and an inner layer containing a mixture of Cu 2O and NiO with many pores. Cu 50Ni presents a small degree of internal oxidation of nickel, which is observed in many binary double phase systems, but is quite rare in single phase systems. | 曹中秋 牛焱 F.Gesmundo | 2001 | 中国有色金属学会会刊:英文版2001，11，4： | 1 |
| 5 | 显微组织对Cu-Cr-Ni合金高温氧化行为的影响显示文摘研究了两种单 /双相Cu Cr Ni合金的高温氧化行为。结果表明 ,合金氧化动力学偏离抛物线规律 ,其瞬时抛物线速率常数随时间延长而降低。两种合金表面氧化膜的结构差别较大 ,单相合金表面形成一连续的Cr2 O3 层 ,双相合金表面氧化膜外层是一连续的CuO层 ,Ni和Cr的氧化发生在合金内部。这种合金与氧化物共存的混合内氧化与经典的内氧化明显不同 ,氧化层最里面形成了一连续的Cr2 O3 膜 ,抑制了合金的进一步氧化。 | 曹中秋 牛焱 F.Gesmundo | 2001 | 中国有色金属学报2001，11，3： | 1 |
| 6 | Phase Stability, Kinetic Diagrams and Diffusion Path in High Temperature Oxidation of Binary Solid-Solution Alloys显示文摘The phase diagrams of ternary systems involving two metal components and one oxidant are considered first, the limitations to their use is discussed in relation to the high temperature oxidation of binary alloys. Kinetic diagrams,which are useful to predict the conditions for the stability of the two mutually insoluble oxides as the external scale, are then calculated on the basis of thermodynamic and kinetic data concerning both the alloys and the oxides, assuming the validity of the parabolic rate law. A combination of the two types of diagrams provides a more detail information about the oxidation behavior of binary alloys. The calculation of the diffusion paths, which relate the oxidant pressure to the composition of the system in terms of the alloy components both in the alloy and in the scale during an initial stage of the reaction in the presence of the parabolic rate law, is finally developed. | YanNIU F.Gesmundo | 2003 | Journal of Materials Science & Technology2003，19，6： | 1 |
| 7 | Sulphidation of Fe-Nb,Co-Nb and Ni-Nb Alloys in H_2-H_2S at 700℃显示文摘The corrosion of alloys based on Fe,Co and Ni containing 15 and 30 wt-% Nb was studied at 700℃in H2-H2S mixtures providing 10-8 atm S2.The Fe and Co-based alloys formed duplex scales withan outer layer of pure base-metal sulphide and an inner layer containing both metals.The Nb addi-tions were not able to produce exclusive Nb sulphidation but yielded a significant decrease of thecorrosion rates for both types of alloys with respect to the pure metals even though they were stillmuch higher than that of pure Nb.The Ni-base alloys corroded rapidly forming a single complexscale layer,mainly due to the appearance of a liquid Ni-S solution. | F.Gesmundo F.Viani Y.NIU | 1993 | Journal of Materials Science & Technology1993，9，3： | 0 |
| 8 | 纳米晶Ni-Ag合金在600-700℃的空气氧化显示文摘利用球磨和热压致密化过程 ,得到富Ag和富Ni相均匀分布的纳米晶Ni-Ag双相合金 .研究了含Ni分别为 50at%和 75at%的Ni- 50Ag和Ni- 2 5Ag合金在 60 0~ 70 0℃空气中的氧化 .Ni- 50Ag合金形成了Ni内氧化结构 ,最外层为连续Ag层 ,其氧化速率大于纯Ni.相反 ,Ni- 2 5Ag合金则形成了连续的NiO外氧化层且最外层为不连续的Ag层 .Ni- 2 5Ag合金氧化初期服从抛物线速率常数关系 ,随后氧化速率显著减小甚至小于纯Ni.合金的双相结构特性以及合金中极小的晶粒尺寸导致了上述结果的产生 . | 赵泽良 牛焱 F.Gesmundo | 2001 | 中国腐蚀与防护学报2001，21，5： | 0 |
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