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increasing further. Fig.7 Transformation strain, recovery strain and plastic strain as function of external stress for Ti52Ni23Cu25 ribbon annealed at 400 ℃ for 10 h 4 Conclusions 1) Amorphous as-spun.... The annealed ribbon shows up to 1.6% superelasticity shape recovery with low hysteresis of 25 MPa. No obvious flat stress-plateau is associated with the superelasticity. 4) The annealed ribbon exhibits......
Chemia Scandinavica A, 1975, 29(5): 565-566. [4] GILBERT B, MAMANTOV G. Raman spectrum of AlF4- ion in molten fluorides[J]. Inorganic & Nuclear Chemistry Letters, 1974, 10(12): 1123-1129. [5......
to different strains at heating rate of 20 K/min 4 Conclusions 1) Zr55Al10Ni5Cu30 BMG was rolled at a strain rate of 3.0×10-1 s-1 up to a deformation degree of 95% at room temperature... of atomic sizes and the heats of mixing [J]. Acta Metallurgica, 1974, 22: 897-900. [4] INOUE A, SHIBATA T, ZHANG T. Effect of additional elements on glass transition behavior and glass formation......
coating, it exhibits little change during the first 4 000 cycles, and increases to 0.8 after 10 000 cycles. However, for Ni-11%Cr nano- composite, it exhibits little change and keeps stable during the test...; Fig.7 Liner relationship between microhardness and wear mass loss of Ni-Cr nanocomposite coatings 4 Conclusions 1) The content of Cr particles in Ni-Cr nanocomposite coatings increases......
600 nm when Y2O3 has a larger width of 4 000 nm(see Fig.4(a)), indicating that the secondary electrons are produced in Y2O3 and thus the secondary emission mainly occurs in Y2O3. This emission could... Mo to the holes is difficult since Y2O3 is an excellent insulator. So, it is difficult to provide continuous emission. Decreasing width of Y2O3 from 4 000 nm to 2 000, 1 000 and 500 nm......
owing to the segregation of Ce at the oxide grain boundaries is likely to be the main mechanism. 4 Conclusions 1) Ce+ implantation into the preformed oxide scale with the thickness of 0.6 mm... Soc, 1987, 134(7): 1871-1872. [4] PRZYBYLSKI K, GARRAT-REED A J, YUREK G J. Grain boundary segregation of yttrium in chromia scales [J]. J Electrochem Soc, 1988, 135(2): 509-517. [5] NAGAI H......
. Fig.6 TEM photograph of cross-sectional morphology of TiAl-10Nb-5Si and corresponding EDS patterns 4 Discussion The Si addition can change the typical microstructure of oxidation scale on TiAl... on surface and on the Ti5Si3 phase is also impeded. 4) The oxidation resistance of the TiAl based alloys is improved by the combination of Nb and Si. References [1] APPLE F, WAGNER R. Microstructure......
数φ*与其功函数值一致,然后通过线性回归处理得到参数a和b分别为0.157 5和2.014 4,得到式(3): 表1 不同配位体时稀土元素的离子半径[19-20] Table 1 Ion radius of rare earth elements with different coordination numbers[19-20] (pm) 因为镧系稀土元素的... with Ce content in Al-Ce alloys at 1 200 K 图4 1 873 K时 Al-Sc合金的混合焓随Sc含量的变化曲线 Fig.4 Variation of mixing enthalpy with Sc content in Al-Sc alloys at 1 873 K 图5 1 550 K时 Al-Nd合金的混合焓......
, XING Hong-yan. Study on measurement method of interior stress distributions in engineering rolled-plates[J]. Journal of Zhejiang University: Engineering Science, 2005, 3(3): 381-384. [4] 王秋成, 柯映林. 航空高......
(3): 332-383. [3] Crespo A, Buyukkokten O, Garcia-Molina H. E-client query subscription processing in a multicast environment[J]. Data Engineering, 2000, 18(3): 233-245. [4] Fabret F, Jacobsen......
