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; Abstract: A new mechanical model for warm powder compaction was presented. Warm compaction process of iron-based powder was investigated to deal with the existence of elastic, plastic and thermal strains. A coupled mechanical and thermal model was developed based on ellipsoidal yield criterion and continuum theory. The constitutive equations were integrated......
A. Bond strength and formability of an aluminum-clad steel sheet [J]. Journal of Alloys and Compounds, 2003, 361(1－2): 138－143. [9] WU H Y, LEE S, WANG J Y. Solid-state bonding of iron-based alloys...; Abstract: Based on rolling tests and simulation, the bond behavior and its mechanism......
by treatment iron-based rare-earth intermetallic compounds in ammonia [J]. J Magn Magn Mater, 1990, 87: 251. [9] SHEN B G, WANG F W, KONG L S, CAO L. Magnetic anisotropy of Sm2Fe17-xGax compounds... expansion and further insights into the mechanism may, therefore, play an important role in theory and applications. The relatively low Curie temperature for the binary rare-earth(RE)-iron intermetallic......
]. Guangzhou: South China University of Technology. 2004. (in Chinese) [17] NGAI T L, CHEN W P, XIAO Z Y. Die wall lubricated warm compaction of iron-based powder metallurgy material [J]. Trans Nonferrous Met... different yield function characterized with an ellipsoidal yield surface. And the Drucker-Prager-Cap yield surface was presented by Drucker and Prager based on soil mechanical theory[10]. Kraft simulated......
stability. Recently, some reports[8-11] have indicated that silicates might be developed as a new class of cathode materials. As reported by ANTON et al[12], a further step in search for iron-based...; 1 Introduction In contrast to the high cost, toxicity, and relative instability of the cobalt-based compounds, LiFePO4 is inexpensive, nontoxic, environmentally......
and exploits a great market of iron-based PM materials. However, some drawbacks of these materials, such as low strength and low hardness, need to be overcame. Some advanced manufacture methods could... composition (mass fraction, %) of the tested material was 2% Cu, 2% Ni, 1% Mo, 1% C(graphite) and Fe as balance. Water atomized iron powder (≤147 μm), carbonyl nickel (3-5 μm) and reduced molybdenum......
nanoscale particles[J]. Materials Letters, 2004, 58: 3012-3016. [9] YANG Lei, YAN Biao, HE Guo-qiu, CHEN Cheng-shu. Research on surface of nanocrystalline multi-component iron-based alloy[J]. Shanghai... alloy are its super-cooling liquid structure, rapid quenching transformation, as well as the melting conditions. Key words: Mg-based amorphous alloys; induction melting; rapid quenching; morphology......
alloys[J]. Phy Rev B, 1998, 58(10): 6273-6286. [8]Sidorov V, Popel P, Son L, et al. Phase transitions and phase diagrams for liquid iron-based melts[J]. Mater Sci Eng A, 1997, 226-228: 317-320. [9... Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250061, China) Abstract: Based on the law of electromagnetic induction, a method......
粉末冶金材料[J]. 中国有色金属学报, 2001, 11(3): 408-411. ZOU Zheng-guang, FU Zheng-yi, YUAN Run-zhang. Iron-based powder metallurgical material reinforced by SHS TiC composite powders[J]. The Chinese Journal...碳的铝熔体中析出. 随着反应温度的升高, 当Al3Ti熔化后, 也有TiC从溶有钛和碳的铝熔体中析出. 2) 产物中残留少量Al3Ti相, 这种反应的不完全性主要是由于使用了较粗的铝粉和钛粉所致. REFERENCES [1]Smagorinski M E, et al. The properties and microstructure of Al-based composites......
Materials Science, 2003, 27: 333-341. [2]Gotoa K, Saitoa Y, Suwa Y. Monte Carlo simulation of phase separation in iron-based ternary alloys [J]. Intermetallics, 2003, 11: 1267-1272. [3]Simmons J P, Wen Y H... diffusion theory[5]and established the microscopic phase field kinetic model[6], which has been used successfully in the simulation of alloy precipitation process on atomic-scale[7-10]. Nickel-based......
