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to the micro range. Two different foils out of the Al-Zr alloy with a thickness of about 15 μm were manufactured using a magnetron-sputtering process by applying substrate temperatures of 310 K and 433 K...Trans. Nonferrous Met. Soc. China 22(2012) s268-s274 Drawability of thin magnetron sputtered Al-Zr foils in micro deep drawing Gerrit BEHRENS1, Julien KOVAC2, Bernd 2, Frank VOLLERTSEN1, Heinz-Rolf......
Al-Zr(CO3)2体系反应合成复合材料的反应机制及动力学模型 赵玉涛, 孙建祥, 戴起勋, 程晓农, 林东洋 (江苏大学 材料科学与工程学院, 镇江 212013) 摘 要: 开发了Al-Zr(CO3)2体系熔体反应法合成新型(Al3Zr+Al2O3)p/Al复合材料, 研究了Al-Zr(CO3)2体系的反应热力学, 反应动力学及反应机制. 结果表明: Al-Zr(CO3..., 且合成过程前期(反应3min前)主要受化学反应控制, 合成过程后期(反应10min后)主要受扩散控制. Al-Zr(CO3)2体系中关键反应ZrO2与Al按反应-扩散-破裂机制进行, 并建立了反应原理图, 反应动力学模型和反应时间的动力学方程. 关键词: Al-Zr(CO3)2体系; 反应机制; 动力学模型; 熔体反应法; 原位复合材料 中图分类号: TB331 文献标识码......
Aluminothermic Reduction of K2ZrF6 for Preparation of Al-Zr Master AlloyRajagopalan P.K., Sharma I.G. and Krishnan T.S. Materials Processing Division, Bhabha Atomic Research Centre, Mumbai 400085, India Bose D.K. Uranium Extraction Division, Bhabha Atomic Research Centre, Mumbai 400085, India摘 要:luminothermicReductionofK2ZrF6forPreparationofAl......
; molten salt electrolysis; electrical conductivity; NaF; AlF3; Al-Zr alloy 1 Introduction Al-Zr alloys as one of the new structural materials are used in various fields, such as aerospace, military, nuclear reactions and atomic energy [1-4]. Cryolite- zirconia can be used as electrolyte for producing Al-Zr alloy by molten salt electrolysis. Compared with the common methods of preparing Al-Zr master......
and smaller mean radius were observed. The Al-0.30Zr-0.08Y alloys show improved recrystallization resistance compared with Al-0.30Zr alloys Key words: Al-Zr-Y alloy; yttrium; heat treatment... and Al-0.30Zr-0.08Y during aging as determined by electrical conductivity measurement. Al-Zr-Y exhibits relatively high electrical conductivity compared with Al-Zr during aging, indicating more alloy elements......
; 文章编号:1672-7207(2013)05-1806-07 Calculation of thermodynamic properties of Al-Zr, Al-Y and Zr-Y binary alloy melts LI Hongying, LU Xiaochao, BIN Jie, WEI Dongdong... of the element. According to the phase diagrams of Al-Zr and Al-Y binary alloy, the Gibbs free-energy of the phase precipitation reaction of Al3Zr and Al3Y were deduced. The results show that the values of Al-Zr......
Investigation on the High Temperature Internal Friction of a Subperitectic Al-Zr Alloy in Precipitating Process of ZrAl3Teng Gongqing Huang Changzhi Department of Physics,Northeast University of Technology,Shenyang,China摘 要:<正> An inverted torsion pendulum has been used to study the high temperature internal friction of an Al-0.22wt% Zr......
and development of ultra-high strength aluminum alloy containing zirconium[J]. Journal of Aeronautical Materials, 2002, 22(4): 56-61. [3] 张映新. Al-Ti和Al-Zr中间合金组织遗传性对铝合金铸造组织的影响[J]. 轻合金加工技术, 1998, 26(11): 11-13.ZHANG Ying-xin. Effect of structures heredities of Al-Ti and Al-Zr master alloys on casting structures of aluminum alloys[J]. Light Alloy Fabrication Technology, 1998, 26(11): 11-13. [4] 余爱武, 杨成刚, 刘奋成......
), it is demonstrated that the conductivity depends on the content of Zr in the Al solid solution which is the minimum after holding at 450 °C for 3 h. On the other hand, the hardness of the alloy is mainly... conditions, rolling regime and, especially, the heat treatment cycle. According to the experimental results of TACER et al [12], the conductivity of an Al–0.25%Zr (mass fraction) alloy reaches the peak......
电解Al-Zr母合金的热力学曹大力1,石忠宁1,王吉坤2,邱竹贤11. 东北大学材料与冶金学院2. 云南冶金集团总公司摘 要:简要介绍了Zr在铝及铝基合金中的作用,提出利用氧化锆,氧化铝直接在电解槽中电解Al-Zr母合金的工艺方案;从热力学角度对该方案进行了分析,并利用Miedema模型对锆在铝中的活度系数进行了计算·结果表明:在活性阳极电解条件下(1223K),锆与铝可以共同析出,锆在铝中的活度系数接近1;氧化锆在电解液中的溶解度约0·55%;可以在电解槽中直接生产锆的质量分数为2%左右的Al-Zr母合金·关键词:Al-Zr母合金;电解;热力学;ZrO2;活度系数;溶解度;......