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% lead (mass fraction) was fabricated by using stir casting technique followed by hot extrusion, details of which are given in two earlier papers[16,17]. The composition of the base alloy was Al- 4%Si-1.0... zone where much material transfer from the pin to the disc occurs. This is typical of adhesive wear. 4 Conclusions 1) High current pulsed electron beam irradiation of Al-Pb alloy induces three......
into the oxide layer. 4 Discussion In the view of the oxidation thermodynamics, the Gibbs free energy for TiO2 formation is much lower than that for NiO. Accordingly, when oxidation occurs, the NiTi... beneath the external oxide scale, which can effectively impede the diffusion of oxygen ion and the elements in the matrix. 4) The oxidation resistance of the single phase NiTiNb alloys with much......
the pinholes or defects in the coatings, which prevents the occurrence of localized nodules-like corrosion. 4 Conclusions All coatings have a B1 NaCl structure. The preferred orientation changes from (111... A, 1987, 7: 2339-2345. [4] TUFFY K, BYRNE G, DOWLING D. Determination of the optimum TiN coating thickness on WC inserts for machining carbon steels [J]. Journal of Materials Processing Technology......
rise is about 40 ℃. 4 Discussion The deformation behavior of ECA pressing was investigated with a fixed channel angle (φ) of 90? and ψ angles of 0?, 22?, 60? and 90?. It should be noted from Fig.7.... Effect of ECAP on microstructure and mechanical properties of a commercial 6061 Al alloy produced by powder metallurgy[J]. Journal of Alloys and Compounds, 2003, 354: 216-220. [4] SKRIPNYUK V M......
be 40?-60? [5-8]. 4 Conclusions 1) Semisolid billets and slurries with good microstructures have been prepared by cooling or preheating the novel sloping plate. A small car hub wheel of AlSi6Mg2 alloy...: 3309-3318. [3] FAN Z. Semisolid metal processing [J]. International Materials Reviews, 2002, 47(2): 49-189. [4] YANG Xiang-jie. The rheological behavior for thixocasting of semisolid aluminum alloy......
reduction, resulting in a similar change of electrical resistivity, as shown in Fig.4. 4 Conclusions 1) When annealing at 300 ℃, precipitation process in aluminum alloy 3003 is affected by the presence... of Metals, 2006, 31(3): 36-39.(in Chinese) [4] ZHANG Hong-mei, MIAO Qun, LI Yong, LI Sheng-ying, FU Zhong-guo. Factors of affecting specific capacitance of 3003-3 aluminum alloy foil for negative electrode......
to the pit is included in the crack growth model. Fig.1 Schematic diagram of pitting corrosion developing process 4 AFGROW model 4.1 Damage locations The mapping of damage in structure shows... in this paper. A preliminary recommendation for the pit depth is about 1mm. 4) The effect of MSCD is to decrease substantially fatigue life compared with that of a single crack. But this trend is not sensitive......
processing conditions Fig.6 TEM photographs showing a large amount of small particles accounting for microstructure stability 4 Conclusions 1) The Al-Cu-Li alloy in the hot-rolling condition shows... for which activation energies correspond to grain boundary diffusion. 3) Skipping rapid recrystallization annealing process can supply a higher value of elongation- to-failure. 4) A large amount......
]. Oxford: Pergamonelsevier Science LTD, 2002. [4] BUGBY D C, KROLICZEK E J, YUN J S. Development and testing of a miniaturized multi-evaporator hybrid loop heat pipe[J]. AIP Conf Proc, 2005, 746: 69-81......
the difference of the two volumes mentioned above. 4 Conclusions 1) With different machining parameters, four different kinds of fins can be generated in the plough process, which are gestation fin, multi... exchangers from view point of field synergy principle[J]. International Journal of Heat and Fluid Flow, 2005, 26: 459-473. [4] RASOULI S, GOLRIZ M R, HAMIDI A A. Effect of annular fins on heat transfer......
