共搜索到32682条信息,每页显示10条信息,共3269页。用时:0小时0分1秒331毫秒
. Modeling the strengthening response to ageing process of heat-treatable aluminum alloys containing plate/disc- or rod/needle-shaped precipitates [J]. Materials Science and Engineering A, 2003, 344(1/2... strengthening of Al alloys with plate/disc-like or rod/needle-like precipitate [J]. Rare Metal Materials and Engineering, 2003, 32(12): 971-975. (in Chinese) [29] GENEVOIS C, DESCHAMPS A, DENQUIN A. Quantitative......
......
and precipitate free zone on the fatigue crack growth resistance are less significant than those of precipitates within grains of the alloy. Key words: 7055 aluminum alloy; ageing; fatigue crack growth rate; precipitate 1 Introduction Based on the principles of aircraft design, the higher fatigue crack growth resistance of advanced aluminum alloys is required and paid much attention considering......
is of good engineering practicality. Key words: aluminum alloy; residual stress; thick plate; surface stress; prediction model 1 Introduction Wrought aluminum alloys are used for aerospace applications...J. Cent. South Univ. Technol. (2011) 18: 285-289 DOI: 10.1007/s11771-011-0692-8 Prediction model of residual stress field in aluminum alloy plate GONG Hai(龚海), WU Yun-xin(吴运新), LIAO Kai(廖凯......
Effect of large cold deformation after solution treatment on precipitation characteristic and deformation strengthening of 2024 and 7A04 aluminum alloys NING Ai-lin(宁爱林)1, 2, LIU Zhi-yi(刘志义)1... Al alloys were investigated. The tensile property tests indicate that the ageing response of the 2024 aluminum alloy is accelerated when treated by cold deformation after solution treatment......
strengthening effect, their precipitation sequence and precipitate phases are also very typical in magnesium alloys containing rare earth elements. The research progress on ageing precipitation of Mg-Gd.... At last, the precipitation strengthening mechanism and further development of Mg-Gd alloys were discussed. Key words: Mg-Gd alloys; ageing precipitation kinetics; precipitate; mechanical property......
Micromechanical model for competition between intergranular and intragranular fracture in 7××× aluminum alloys ZHANG Xin-ming(张新明), LIU Wen-hui(刘文辉), TANG Jian-guo(唐建国), LIU Sheng-dan(刘胜胆) School..., relative PFZ volume, orientation of PFZ on the ductility of 7××× aluminum alloys were analyzed. The results show that the model can explain the effect of microstructure on the competition between......
specific strength [1–3]. The mechanical properties of these alloys depend largely on the type, size and distribution of the precipitates formed upon thermal ageing. In Al–Cu–Li alloys, several types... will be the mainstay on the contrary. Moreover, numerous studies have shown that minor solute additions of Mg, Ag and Zn to Al–Cu–Li alloys can promote the precipitation of the T1 phase and precipitate......
Microstructural evolution of aluminum alloy 7B04 thick plate by various thermal treatments LI Zhi-hui(李志辉), XIONG Bai-qing(熊柏青), ZHANG Yong-an(张永安), ZHU Bao-hong(朱宝宏), WANG Feng(王 锋), LIU Hong... The 7000 Al-Zn-Mg-Cu system has been widely studied due to the excellent mechanical properties developed in the alloys after age hardening[1-3]. AA 7B04 (a Chinese brand), a precipitate-age......
this gap, it is necessary to study the basic principle of evaluating the capacity of the plate straightener. In this work, the mechanics model describing the strengthening capacity was presented. To verify... of the incoming plate and the plastic ratio. The mechanics model describing the capacity of the machine was developed. The deviation of the straightening capacity curves was studied. Then, the presented model......