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Trans. Nonferrous Met. Soc. China 25(2015) 3921-3927 Effect of aging time on corrosion behavior of as-forged AZ80 magnesium alloy Hui-juan LIAO1, Xiao-feng ZHOU1, Hui-zhong LI1,2,3, Min DENG1, Xiao..., SEM and potentiodynamic polarization curve measurement. The results show that the corrosion rate of the alloy decreases dramatically with the increase of aging time during the initial aging stage......
not only to the aging temperature and the impurity concentration of the metal, but also to the aging time. Residual resistance ration is improved with the increase of beryllium purity. The residual resistance ration value of pure beryllium is 20-147, and it changes with the aging temperature and aging time. High pure beryllium has ageing tendency just as alloy, so it can be used as aging low alloy......
; 文章编号:1672-7207(2007)01-0030-06 Evolution of intermetallic compounds in SnAg and SnAgCu lead-free solder joints during aging LI Xiao-yan1, YANG Xiao-hua2, WU...: The types, morphology and distribution of intermetallic compounds (IMCs), and the evolution of the types and composition and morphology of IMC in the joints during the following aging process were......
, China) Abstract: The time-temperature-property (TTP) curves of Al-5.0Zn-3.0Mg-1.0Cu-0.1Zr alloy were studied using interrupted quenching method, and the quench sensitivity of the alloy was discussed based on the compositions compared with 7050 and 7085 alloy. The results show that the nose temperature of TTP curves is 325 ℃ and transformation time is 1.554 s; the critical temperature range......
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temperature and structural changes of Cu-Zn-Al alloy in the aging process. The alloy Ms point declines with the rise of aging temperature and martensite decreases with a fast aging process in a few time.... Cu-11Al-5Mn-RE obtains the best comprehensive physical performance because of the cooperation of Mn and RE elements. Aging at 200 ℃, the damping capacity gets to the maximum. At 400 ℃, its mechanical......
J. Cent. South Univ. (2012) 19: 206-212 DOI: 10.1007/s11771-012-0993-6 Traffic condition estimation with pre-selection space time model DONG Hong-hui(董宏辉), SUN Xiao-liang(孙晓亮), JIA Li-min(贾利民), LI... Heidelberg 2012 Abstract: A pre-selection space time model was proposed to estimate the traffic condition at poor-data-detector, especially non-detector locations. The space time model is better......
slightly to smaller angles, which can be explained by the disordering growth pattern caused by the rapid solidification process. After aging at 960 ℃ in vacuum, the ribbon is composed of homogeneous α phase and β phase.
Key words: single-roller rapid solidification; two-phase titanium alloy; aging
for 1460 Al-Li alloy 3 Results 3.1 Microstructure after T6 aging 3.1.1 Aging at 145 °C Figure 1 shows the [100]Al SAED patterns and TEM images of the 1460 Al-Li alloy aged at 145 °C for different time... of δ precipitates in the DF image viewed along <100>Al direction (Fig. 1(a)). As the aging time is extended to 34 h, in addition to the obvious δ spots, there appear weak but continuous......高Li含量Al-Cu-Li合金时效析出相的分布与演化
来源: 《中国有色金属学报(英文版)2019年第1期》——李劲风 黄嘉蕾 刘丹阳 陈永来 张绪虎 马鹏程
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