合金

Results After firing/repolishing, the surface composition of the four metal-ceramic alloys changed slightly, and more oxygen was on the surface; Elements Cr, Mo, Al decreased in NiCr metal-ceramic alloys; Co, V is decreased and W increased in CoCr alloy; Pd increased in high noble alloy.

结果 烤瓷／抛光后，4种合金表面元素组成存在波动，表面氧组成增多，差别显著；NiCr合金Cr、Mo、Al减少；CoCr合金Co、V减少，W增加；Au合金Pd增加。

The results show that nano-crystalline NiAl intermetallic compound can be synthesized by MA taking elemental powders of NixAl100-x(x＝25,30,40,50) as green reactants. Supersaturating solid solution NiAl intermetallic compound can be synthesized by MA using nonstoichiometric Ni-Al powders, and the synthesis mechanism is combustion reaction which includes forced solid solution based on atomic diffusion.

研究表明：NixAl100-x四种成分的元素粉末通过机械合金化方法均制备出纳米晶NiAl金属间化合物粉末；非化学计量配比成分的Ni-Al粉末通过机械合金化合成NiAl过饱和固溶合金，其机械合金化合成机理为含有以原子扩散为基础的强制固溶的燃烧合成反应。

By testing the mechanic and electrochemical properties of lead and lead alloy,concluded that Pb Ca alloy have higher hardness and corrosion resistance,while Pb Sb alloy have better cycle charge discharge r property than Pb Ca alloy.

通过对铅及其铅基合金的机械性能和电化学性能的测试可得，Pb－Ca系合金具有较高的硬度和较优良的耐腐蚀性能，而Pb－Sb合金的循环充放性能优于Pb－Ca合金。

ZA alloy is based on Zn and composed of Al, Cu, Mg added as alloying elements. It is a kindof environmental friendly material that possesses characteristics of high strength, better plasticity,excellent wear resisting property, low friction coefficient and high specific strength, low meltingpoint and no magnetic. ZA alloy has been widely applicated in the fabrication of mechanical partsand models, such as bearing, axle sleeve, pressing plate and turbine. However, the joiningproblem of ZA alloy that hasnt been solved has limited its application in some fields.

ZA合金是以Zn为基，添加了Al、Cu、Mg等合金元素，具有强度高、塑性好、耐磨性优良、摩擦系数低及较高的比强度、低的熔点、无磁性等特点的环保材料，广泛应用于制造轴承、轴瓦、压板、涡轮等机械零件及模具等，但由于连接问题没有解决限制了ZA合金在一些领域的应用，也因此成为ZA合金急亟待解决的问题之一。

Based on the failure type of the guide roller for bar or wire mill, the contrasting experiment on the high temperature wear resistance of GJH 2 cermets and Gx casting alloys at different heat treatment condition and temperature was carried out, and the GJH 2 cermet was used as the guide roller of mill.

在分析棒、线材轧机使用的 Gx铸造合金导卫辊失效形式的基础上，对不同热处理状态的GJH- 2合金和 Gx铸造合金，在不同温度下的高温磨损特性进行了对比试验，并将 GJH- 2合金制成导卫辊在轧机上进行了装机试验。

The results show that the CNTs are dispersed effectively by bell jar immersing precast block casting. The maximal tensile strength and the elongation of the AZ31/CNTs composites are enhanced by 41.3% and 119.4%, respectively, and the elastic modulus and micro-hardness are also raised by 67.8% and 66.9%, respectively, when compared with those of the as-cast AZ31 Mg alloys. The CNTs can greatly refine the grains of the composites, playing a good role in reinforcing the matrixes of AZ31 Mg alloy. The fracture sections of the composites mainly consist of dimples and prisms, which demonstrates quasicleavage fracture modes.

结果表明：钟罩压块法可以有效地将碳纳米管分散到镁合金熔体中；CNTs对AZ31镁合金的力学性能有较强的增强效果，与本研究中的铸造AZ31合金相比，AZ31/CNTs复合材料的最大抗拉强度和伸长率分别提高41.3%和119.4%，弹性模量和显微硬度分别提高67.8%和66.9%；CNTs对AZ31镁合金基体晶粒的细化作用显著，与镁基体界面结合较好；复合材料试样断口形貌由韧窝和撕裂棱组成，呈现准解理断裂特征。

The results show that the CNTs are dispersed effectively by bell jar immersing precast block casting. The maximal tensile strength and the elongation of the AZ31/CNTs composites are enhanced by 41.3% and 119.4%, respectively, and the elastic modulus and micro-hardness are also raised by 67.8% and 66.9%, respectively, when compared with those of the as-cast AZ31 Mg alloys. The CNTs can greatly refine the grains of the composites, playing a good role in reinforcing the matrixes of AZ31 Mg alloy. The fracture sections of the composites mainly consist of dimples and prisms, which demonstrates quasi- cleavage fracture modes.

结果表明：钟罩压块法可以有效地将碳纳米管分散到镁合金熔体中；CNTs对AZ31镁合金的力学性能有较强的增强效果，与本研究中的铸造AZ31合金相比，AZ31/CNTs复合材料的最大抗拉强度和伸长率分别提高41.3%和119.4%，弹性模量和显微硬度分别提高67.8%和66.9%；CNTs对AZ31镁合金基体晶粒的细化作用显著，与镁基体界面结合较好；复合材料试样断口形貌由韧窝和撕裂棱组成，呈现准解理断裂特征。

Microstructure observation, micro-hardness testing, scanning electron microscope observation, energy dispersive spectroscope and X-ray diffraction analysis were employed to investigate the structure and performance of the joints.After SSNCed for 5min by means of HESP, surface nanostructured layer about 70μm and 50μm thickness were obtained on the stainless steel and titanium alloy ends respectively.

文中对高能喷丸处理后的不锈钢和钛合金的纳米组织进行了表征；试验研究了不锈钢和钛合金表面层纳米组织的热稳定性；采用恒温恒压、脉冲加压对表面自纳米化0Cr18Ni9Ti不锈钢与TA17近α钛合金进行扩散连接；借助拉伸实验机、金相观察、显微硬度测试、扫描电镜观察、能谱分析、X-射线衍射等分析手段研究了表面自纳米化钛合金与不锈钢扩散连接接头的组织结构和性能。

The results show that the differentheat treatment technologyhave noticeable effects on the activity ofhydrogen storage alloy,the stability capacity and cycle life ofhydrogen storage alloy were improved afterheat treatment,especially after 240 cycle times.

不同热处理工艺对合金的活化性能有较大的影响，合金经过热处理后，其稳定放电容量及循环寿命均有所提高，尤其是在240个周期循环后，热处理后的贮氢合金，其循环寿命明显高于未作热处理的合金。

The austenites without and with C and metallicalloying elements are found in the alloy as solid solution treated state. While the martensiteswithout and with C and alloying elements may be induced by cold deformation.

发现该合金在固溶处理状态时为两类奥氏体，即无碳奥氏体和含碳奥氏体；经变形诱发出不含碳与合金元素的无碳马氏体及含碳与合金元素的合金马氏体。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。