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alloys can be improved by adding Ca and Sn additions. Key words: Mg-Al alloy; first-principles calculation; electronic structure; elastic properties; thermodynamic properties 1 Introduction... to the development of the Mg-Al-Ca-Sn- based alloys [8]. To the best of our knowledge, calcium was added to the Mg-Al-based alloys, in which both creep and damping capacity were significantly improved......
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Sn对Mg-Al-Ca系合金热裂敏感性的影响王博,刘正,毛萍莉,王志,王峰沈阳工业大学材料科学与工程学院摘 要:为了研究Sn对Mg-Al-Ca系合金热裂敏感性的影响,通过Clyne-Davies模型对MgAl7Ca1Snx(x=0,0.5,1,2)系合金的热裂敏感性进行预测.采用"T"型热裂模具,对...;MgAl7Ca1Sn2>MgAl7Ca1Sn0.5>MgAl7Ca1.其中,由于Mg Al7Ca1Sn1合金凝固温度区间最宽,脆弱区域的凝固温度变化最大,凝固最后阶段形成液膜最少,枝晶干涉点后析出的第二相阻碍枝晶间的补缩等多种原因使之热裂倾向最大.关键词:Mg-Al-Ca-Sn合金;热裂敏感性;收缩应力;凝固曲线;......
cheaper than other BMGs, but also due to the unique combination of high physical, chemical and mechanical properties[4-5]. Since INOUE et al[6] synthesized Fe-Co-(Zr, Nb, Ta)-(Mo, W)-B amorphous alloys...) at a heating rate of 10 K/min. The dilation measurement, as described by VLASAK et al[9], was applied to measuring the viscosity of glassy alloys. In this method, the overall length changes, Δl, may......
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with the experimental behaviors for Al-Ti and Al-Cu alloys with lower solute content. Key words: growth restriction; constitutional undercooling; solidification; aluminium alloys  ... the grain size and Q value is not monotonic in Al-(1.3%-30.1%)Cu alloys. EASTON and StJOHN[8], and QUESTED et al[13] illustrated that the derivative of the fraction solid fs with respect......
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is obviously beneficial to high temperature mechanical properties of the alloys. When the amount of calcium addition to the base alloy increases to 1.0%, an unknown Mg-Zn-Al-Ca quaternary compound appears...(Al,Zn)49 phase when calcium is added into the base alloy. Further addition of calcium leads to the increase of grain boundary phases and formation of a new quaternary Mg-Zn-Al-Ca eutectic compound......
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Synthesis of LiCoxNi1-xO2 cathode materials from electrolysis Co-Ni alloys YE Mao(叶 茂)1, WEI Jin-ping(魏进平)1, CAO Xiao-yan(曹晓燕)2, ZHAI Jin-ling(翟金玲)1, WANG Xiao-yu(王晓宇)1, SUN Xin(孙 欣)1... corresponding CoxNi1-x alloys by electrolysis technique. The structure and electrochemical characteristics of the obtained LiCoxNi1-xO2 were studied by XRD, SEM, PSCA and charge-discharge cycling test......