Cast or heat treated La0.80Mg0.20（Ni0.94Co0.06）3.7 alloys were prepared to investigate effects of heat treatment on electrode cycling performance, phase composition and electrochemical corrosion behaviour of the alloys. The results from SEM and EDS analysis show that heat treatment will result in less Mg and Ni concentration difference between phases in the alloys. Compared with cast alloy, heat treated alloy has a more positive interphase corrosion mixed potential. The maximum interphase corrosion current density of cast alloy and heat treated alloy is 106.1 mA/g and 82.4 mA/g,respectively. After heat treatment, the al loy has better electrode cycling performance due to lower interphase electrochemical corrosion.

The sintered ZrO2-NieO3 sheets were prepared by doping graphite powders into material, and they were used as the cathode to prepare ZrNi alloy by direct eletro-deoxidation. Effects of graphite powders do- ping on morphology and composition of the sintered sheets and eletro-deoxidation reaction of the cathode were investigated. The results show that in the case of doping graphite powders, the sintered ZrO2-Ni2O3 sheets have more uniform particle size and higher porosity. Graphite powder doping can also improve ca- thodic electrolysis current and accelerate eletro-deoxidation reaction, and furthermore the content of ZrNi alloy phase in the electrolysis product is higher,with mass fraction up to 82%（from oxidation-weighing method） or 94.6% （from EDS microanalysis）.

Zr-Nb-N film was deposited on monocrystalline silicon wafer with RF magnetron sputtering method at different nitrogen partial pressure. The results from EDS, TEM and XRD analysis show that with the increase of nitrogen partial pressure, nitrogen content in the film increases but niobium content decreases. Meanwhile, fine grain structure coarsens, and the two phases of NbN and ZrN are separated from the single phase of Zr-Nb-N solid solution. Four-probe resistance meters and microhardness tester were used to characterize sheet resistance and microhardness of the film. The results show that with nitrogen partial pressure increasing, sheet resistance of the film declines,and microhardness increases first and then decreases.

The internal structure is not dense enough and the plastic performance is low for the conventional hot rolling molybdenum plate. Therefore, the main influencing factors and control methods of the plastic performance of molybdenum plate were studied based on the rolling forming quality analysis and control. The current hot rolling process was analyzed, and improvement program was put forward and then a con- trast test was carried out. The results show that both the density and plastic performance of molybdenum plate can be obviously improved by improving hot rolling process.

The current research and applications of several typical molybdenum alloys are summarized. The main properties, preparation processes and application fields are introduced of molybdenum-copper alloy, molybdenum-titanium-zirconium alloy, molybdenum-rhenium alloy,rare earth-molybdenum alloy and mo- lybdenum-silicon alloy. And their future development is forecasted.

The effects of alloying elements, strengthening approaches and mechanisms, current research of mechanical properties, heat treatment and aging precipitation behavior of Mg-Gd-Y-Zr alloys are introduced and their future development is forecasted.

2012年9月12日，由中国有色金属工业协会组织、全国相关研究院所及高等院校十三位冶金、选矿专业资深院士和教授组成的评价专家组，对以长沙有色冶金设计研究院有限公司为主完成的三个冶金及选矿项目进行了科技成果评价：

湖南稀土金属材料研究院始建于1958年，为国有独资科技型企业，是我国最早从事稀土材料应用研究与开发的单位，是军工稀土新材料研制开发的配套单位。该院已通过军品科研生产许可认证和ISO9001中国质量认证。

Based on the principle of universal central composite rotatable design （CCD）,the formulation of compound inhibitors was optimized and the related experiment was designed, by response surface analysis. Effects of compound inhibitors on oxidation dissolution of WC powder were investigated in hydrothermal environment,and compound inhibitors are composed of sodium citrate, borax, nitro-benzoic acid triethano- lamine ester （simplified as aromatic amine ester）. The electromotive force changes of different inhibitor so- lution were determined before and after adding WC powder. Response surface and contour line were drawn with AE as the response indicator. The interaction between various factors and leaching degree of WC in different solution were analyzed. The results show that with max response value i. e. minimum WC oxida- tion dissolution,the compound inhibitor formula is as follows：sodium citrate 0. 983 5 g/100 mLH20,borax 2. 507 4 g/100 mLH20,aromatic amine ester with 1 ： 1.1 molar ratio 2. 510 3 g/100 mLH20. And the pre- dictive value of the regression model is 0. 059 07 V and the actual measured value is 0. 058 36 V.

The experiment of cesium absorption on graphite was carried out with self-made glass vacuum de- vice,and the adsorbance and absorption ability of graphite for cesium metal in vacuum were investigated. The structure characteristics of ideal cesium adsorbent are discussed,and the graphite type is determined of excellent adsorption properties for cesium.