共搜索到18685条信息,每页显示10条信息,共1869页。用时:0小时0分0秒700毫秒
Deformation behavior of TC1 titanium alloy sheet under double-sided pressure WANG Zhong-jin(王忠金), SONG Hui(宋 辉),WANG Zhe(王 哲) School of Materials Science and Engineering, Harbin Institute... bulge(VPB) tests of an annealed TC1 titanium alloy sheet were carried out under two different conditions: double-sided pressure bulging and conventional single-sided pressure bulging. The automated......
......
Grain refinement of hypoeutectic Al-Si alloy preparedwith ELTA by Al-4B master alloy WANG Ming-xing(王明星), MENG Xiang-yong(孟祥永), LIU Zhi-yong(刘志勇),LIU Zhong-xia(刘忠侠), WENG Yong-gang(翁永刚), SONG Tian... 2006 Abstract: Electrolytic low-titanium aluminum (ELTA) was produced by adding TiO2 powder to an industrial aluminum electrolyzer. The grain refining effect of Al-4B master alloy......
......
......
, the corrosion current density is reduced by two orders of magnitude compared with that of uneroded Mg68Zn32 alloy. Key words: as-cast magnesium alloy; corrosion resistance; icosahedral quasicrystal; Mg-Zn... of Mg68Zn32 and Mg68Zn28Y4 were prepared from the master alloy Mg-25%Y (mass fraction), high purity Mg (99.9%, mass fraction) and Zn(99.9%, mass fraction) by melting in graphite crucibles in 3 kW electric......
阻Rp较小,交换电流密度I0,极限电流密度IL以及阳极峰电流密度Ip较大,合金电极动力学性能较好.关键词:La-Mg-Ni基合金;电化学性能;储氢性能;...炼法制备La0.7(Pr0.75Nd0.25)xMg0.3Ni3.3(Co0.7Al0.3)0.3(x=0.0,0.1,0.2,0.3)合金,研究混合稀土含量对合金储氢和电化学性能的影响.合金XRD相分析结果表明,合金相主要由LaNi5,(La,Pr)Mg2Ni9,(La,Nd)2Ni7和LaNi3相组成.随着Pr和Nd含量的增加,合金吸氢量先增加后减小,最大吸氢量为1.42%(质量分数)(x......
生成焓ΔH的绝对值及吸氢平台压先减小后增加.制备合金中,La(1.7Sm0.3Mg16Ni合金的生成焓ΔH的绝对值最小,为-53.07 k J·mol-1.关键词:La-Mg-Ni合金;铸态;Sm替代;气态储氢;...铸态La2-xSmxMg16 Ni(x=0-0.4)合金的气态储氢性能冯佃臣1,2,孙昊2,王西涛1,张羊换2,31. 北京科技大学新金属材料国家重点实验室2. 内蒙古科技大学材料与冶金学院3. 钢铁研究总院功能材料研究所摘 要:采用真空感应熔炼技术制备了La2-xSmxMg16Ni(x......
金进行了退火处理,对比研究了快淬及其退火合金组织结构,储氢性能的差异,并对其失效行为进行了分析.结果表明,快淬La4MgNi19合金由(La,Mg)2Ni7,(La,Mg)5Ni19和LaNi5多相组成,退火使晶粒尺寸变大并促进了(La,Mg)5Ni19相含量的增加.退火处理提高了快淬合金的最大放电容量和高倍率放电性能,但降低了合金的电化学循环稳定性.浸泡试验表明退火能够提高合金的本征耐腐蚀性.然...-Mg-Ni系合金;快淬-退火处理;电化学性能;失效行为;......
能有效地提高贮氢合金电极电化学性能,处理温度是电极循环寿命和放电容量最为显著的影响因素,在NaH2PO2浓度25 g·L-1,处理温度80℃,时间30 min时综合电化学性能最佳.关键词:La-Mg-Ni系负极材料;化学沉积;最佳实验条件处理后合金;...化学沉积处理对RE-Mg-Ni系负极材料电化学性能影响许剑轶,胡峰,张国芳,李永治,李霞,张胤内蒙古科技大学材料与冶金学院摘 要:为了改善RE-Mg-Ni系超晶格负极材料的综合电化学性能,以NaH2PO2作为还原剂,对La0. 75Mg0. 25Ni3. 4Al0. 1负极材料进行化学沉积W-PNi/Y3......