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-Cu合金时效过程中GP区是渐进形成的.在形成初期,Spinodal分解机制占主导作用;在形成后期,正常的形核-长大机制占主导作用.随着Cu原子的富集,GP区最强共价A键的共价电子对数nA逐渐增加,B,C,D键的共价电子对数nB,nC,nD逐渐减少.GP区A键变强的原因在于B,C,D键上的共价电子逐渐向A键转移. 关键词:Al-Cu合金; GP区; 价电子结构; 演变; Al-Cu alloy; GP zone; valence electron structure; evolution; [全文内容正在添加中] ......
highly aggressive solutions. Key words: nickel-base corrosion-resistant alloy; valence electron structure; solid solution effect; corrosion resistance Cu alloy, its valence electron......
), scanning electron microscopy(SEM), transmitting electron microscopy(TEM) and energy spectrum analysis. The results show that the network structures of Al-Cu alloys can be remarkably refined, the distance of dendritic structure decreases, the structure of the alloy can be refined and the micro-hardness can be enhanced 70% or so. With additions of trace Sc to Al-Cu alloy, when the mass fraction......
and transmission electron microscopy to study the evolution of precipitates phase in Al-Cu alloys during ECAP at room temperature.2 Experimental Rod-shaped samples of an Al-4.11%Cu (mass fraction) alloy, 10 mm... Evolution of precipitates of Al-Cu alloy during equal-channel angular pressing at room temperature XU Xiao-chang(许晓嫦)1, LIU Zhi-yi(刘志义)1, LI Yun-tao(李云涛)1, DANG Peng(党 朋)1, ZENG Su-min(曾苏明)1, 2......
Analysis of Valence Electron Structure of RE in Solid Solution in Medium and Low Carbon Steel 刘艳1,朱莹光1,刘伟东1,刘志林1 (1.Department of Material and Chemical Engineering,Liaoning Institute of Technology...,pearlite and martensite were calculated.The influence of RE in solid solution on phase transformation of pearlite and recrystallization of martensite was explained by the valence electron structure data......
investigation and modelling of yield strength and work hardening behaviour of artificially aged Al-Cu-Li alloy[J]. Materials and Design, 2019, 183: 108121. [59] LIU Dan-yang, SANG Feng-jian, LI Jin-feng, et al. The role of grain structure characteristics on the localised corrosion feature in the 1445 Al-Cu-Li alloy[J]. Materials Characterization, 2019, 158: 109981. [60] PAN X M, LIN C, BRODY H D......
in aged Al-Cu alloy. The re-precipitation behavior of strain-induced supersaturated solid solution during subsequent deformation was investigated by X-ray diffraction and transmission electron... Al-Zn-Mg alloys[J]. Mater Sci Eng A, 2007, 460/461: 77-85. [7] XU X C, LIU Z Y, LI Y T, DANG P, ZENG S M. Evolution of precipitates of Al-Cu alloy during equal-channel angular pressing at room......
-chang, LIU Zhi-yi, LI Yun-tao, et al. Evolution of precipitates of Al-Cu alloy during equal-channel angular pressing at room temperature[J]. Transactions of Nonferrous Metals Society of China, 2008, 18(5... 文献标志码:A 文章编号:1672-7207(2010)05-1782-09 Re-ageing behavior of Al-Cu alloy after re-dissolution......