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Green evaluation of microwave-assisted leaching process of high titanium slag on life cycle assessment CHEN Guo(陈 菓), CHEN Jin(陈 晋), PENG Jin-hui(彭金辉), WAN Run-dong(万润东) Faculty of Metallurgical... the conventional ones, with respect to energy-consumption, processing time and environmental protection. Key words: life cycle assessment; greenness evaluation; microwave-assisted leaching; high......
Received 28 July 2006; accepted 15 September 2006 Abstract: Monotonic (tensile and compressive) and high cycle fatigue properties of the forged magnesium alloy AZ80 were investigated by using... alloy. Key words: mechanical properties; tensile; compression; high cycle fatigue; wrought magnesium alloys; AZ80; directional anisotropy 1 Introduction Magnesium alloys, due to their low densities......
between the two kinds of testing apparatuses is that SHPB can apply dynamic impact loads with medium high strain rates ranging from 10 to 103 s-1, and the fatigue testing machine can apply dynamic fatigue... triaxial fatigue testing results presented in earlier published literatures, which was due to the fact that the σmax of fatigue loads was set at a high level in this study. From the study results, several......
] was determined to be from 9 to 90 ℃. The whole thermal cycle includes ramp-down and ramp-up for 5 min, low temperature and high temperature dwelling for 25 min (see Fig.6... Fig.8). Equivalent stress and plastic strain fluctuate as the thermal cycle goes on, which causes the thermal fatigue of solder joint. From the equivalent stress and plastic strain, hysteresis loops......
life (N) Fig.4 Relation curves for of rebars S1 and S2 and fatigue cycle (n) 3.2.2 Crack width Steel fiber and reinforcements in the composite layer restrain expanding of self-stressing.... The relation curves for crack width (wmax) and fatigue cycle (n) are shown in Fig.5. The development of the maximum crack width (wmax) of beams C1 and C2 under fatigue load cycles is divided into three......
有较低的屈服强度. 关键词:A356合金;低周疲劳;循环硬化;疲劳寿命 中图分类号:TG146.2 文献标志码:A Low cycle fatigue behavior of cast A356 aluminum alloys SONG Mou-sheng, RAN Mao-wu, KONG Yuan-yuan, YAN Deng-yang (Department of Physics and Electronics Science, Tongren University, Tongren 554300, China) Abstract: Effects of the method of Ti-alloying and Ti contents on the low cycle fatigue (LCF) behavior......
(mass fraction, %) Table 2 Components of Keller’s reagent The fatigue tests were carried out by a high- frequency fatigue test machine with a capacity of 100kN load.... In most cases, the difference of test results should drop in the dispersion train of this standard deviation, which changes following the variation of cycle index. Fatigue data are processed using......
at the roughness Sa of 6 μm is decreased by 89.45% compared to the result at the roughness Sa of 0.3 μm. By contrast, the fatigue life drops more significantly in the high cycle fatigue range, and the effect of stress concentration is obvious in low stress and strain level. The influence of roughness Sa on the fatigue life in the high cycle fatigue range is greater than that in the low cycle fatigue......
their higher damage tolerance and higher life-cycle[1]. It is well accepted that microstructures, such as grain size[2], orientation[3-4], secondary phases[5-6] and precipitates[7-8], can affect the fatigue... in load control mode. The fatigue crack growth rate (da/dN) data were generated using the K-increasing procedure for da/dN > 1× 10-5 mm/cycle. The crack lengths were measured by a traveling optical......
of aluminium alloys: application to high cycle fatigue behaviour[J]. Materials Science and Engineering A, 1996, 210: 102-113. [7] MONTROSS C S, BRANDT M, SWAIN M V. Self-limiting hardness changes in laser... fatigue and fracture properties of components. As the high-energy laser beam strikes the material, it passes through the transparent film and is absorbed by the opaque film, causing a thin layer......