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grain boundaries in nanocrystalline materials[J]. Scripta Mater, 2012, 67(26): 264515-12. [5] GUKKIN M Y, OVIDKO I A. Transformations of low-angle tilt boundaries in high-Tc superconductors[J]. Phys......
based on microstructural characterization by optical microscopy (OM), transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM) and differential scanning calorimetry... and Compounds, 2016, 688: 456-462. [15] SAKAKI H, OHNO H, KAWAI S, et al. Superconductors, surfaces and superlattices[C]// Proceedings of the Symposia CC, Superlattice DD, Surfaces and Interfaces HH......
lamps, solid electrolytes, high- temperature superconductors, crystal lasers, X-ray anodes, electronics and advanced ceramics [3-5]. Rare earth elements (REEs) are expensive in general due...]. The ion exchange technique although not new has undergone enormous improvements while still being based on the reversible adsorption of ions at the solid/liquid interface [23]. The improvements are made......
. Effect of P and Si(Mn) on the solidification segregation in an iron-based superalloy[J]. Scripta Metallurgica et Materialia, 1994, 31(12): 1695?1700. [6] 郑 亮, 谷臣清, 郑运荣. Ru对铸造镍基高温合金凝固行为的影响[J]. 中国有色金属学... improvement of alloy GH742y[J]. Journal of Iron and Steel Research, 2007, 19(5): 89?93. [10] D’SOUZA N, DONG H B. Solidification path in third-generation Ni-based superalloys, with an emphasis on last stage......
, such as thermal sprayed nickel- or iron-based alloy coatings [3-4]. Nanostructured (or nanocrystalline) materials, usually characterized by a microstructural length scale in 1-200 nm, have received considerable... thought to be beneficial to the anti-corrosion properties. Key words: corrosion; nanocrystalline materials; coating; thermal spray; nickel-based alloys ......
)+, i.e. the atomic orbital (ΦA and ΦB) overlapping integral (S) of M and O in OH-, the larger the SA-B, the more stable of or M(OH)+. Based on the electroplating mechanism of iron-group... was considered to be 3D taking into account overlap of diffusion zones, and AFSHR et al[37] and YANG et al[38] believed that the deposition of iron series metal and iron-based alloys tallied this model best......
, 分布在几十纳米到300纳米之间. REFERENCES [1]Coey J M D, Sun Hong. Improved magnetic properties by treatment of iron-based rare earth intermetallic compounds in ammonia[J]. J Magn Magn Mater, 1990, 87: L251-L254... J, uek K, Podmiljak B, et al. Magnetic monitoring of the hydrogenation-decomposition-desorption-recombination process in SmFe-based alloys[J]. J Magn Magn Mater, 2002, 251: 207-214. [15]Teresiak......
; 35Ni-15Cr type iron-based superalloy after long-term aging at 700 ℃ for 5 000 h[4]( γ ?, M3B2, TiC and Y phases commonly existed are not drawn) 2W-2Mo型铁基高温合金经(1 140 ℃,4 h,AC)＋(830 ℃,8 h,AC)＋(650...-NiAl phases precipitated in iron-base superalloy with Ti/Al mass ratio of 0.5 (Main composition in mass fraction is Al 4.34%, Ti 2.18%, Cr 14.30%, Ni 34.88%, W 1.84%, Mo 2.15%, C 0.08%, B 0.015%, Ce......
dissolve completely. ZHOU et al [22] studied an iron-based WC multi-track coating by laser induction hybrid rapid cladding; the results show that WC particles dissolve completely to form W and C atoms... and -369.26 kJ/mol for CO2) than carbon. On the other hand, Ti/TiC is one of the most stable carbides in iron at high temperatures, and it does not form any ternary phases [28]. TiC is widely used......
from aqueous solution by iron-based bonding agents [J]. Environ Sci Pollut Res, 2004, 11: 18-21. [3] REN T, HE P, NIU W, WU Y, AI L, GOU X. Synthesis of α-Fe2O3 nanofibres for applications in removal... valuable manganese compounds. The ore is essentially used for the production of manganese sulfate [14-16]. The ore contains iron oxide, silica, and clay minerals in addition to manganese oxide......
