合金的

The experimental results show that:(1) for ideal spheres, the attenuation coefficient of velocity is constant, the air drag coefficient is slightly affected by the initial velocity and is a linear function of initial velocity, and (2) for real fragments formed by a warhead, the flight performances are different from ideal spheres, the air drag coefficient is affected by the flight velocity and is a linear function of flight velocity.

实验结果表明：(1)对于理想球形钨合金破片，在同一初始速度条件下，衰减系数为常数，空气阻力系数与初始速度有关，两者成线性关系；(2)对于经历爆轰驱动的球形钨合金破片，由于有轻微的质量损失和变形，速度衰减规律与理想球形钨合金破片有明显的区别，空气阻力系数与飞行速度有关，两者成线性关系。

The results obtained by XRD show that the as-cast and quenched alloys have a multiphase structure, including theNi3 phase, LaNi5 phase and LaNi2 phase. The substitution of Al for Ni increases the amount of LaNi2 phase in the as-cast alloys, but it has an inappreciable influence on the abundance of the LaNi2 phase in the as-quenched alloy.

X射线衍射分析结果表明：铸态及快淬态合金具有多相结构，包括Ni3相、 LaNi5相和一定量的LaNi2相； Al替代使铸态合金中LaNi2相的量显著增加，但对快淬态合金中LaNi2相的相丰度影响不显著。

In order to reach the purpose of using pre-laser cladding method preparation of Ni-based amorphous alloy coatings on 45 steel substrate surface by the method was carried out. The principles of the three clusters and the amorphous line of the law of composition rules were used. The Ni59.35Nb34.45Sn6.2 alloying powder which has a great glass-forming ability in conventional preparation methods of amorphous alloys was chosen. In the protection of atmosphere, the amorphous surface coating was prepared. The microstructure, micro-hardness and performance of the different output power of the laser cladding were analyzed.

中文摘要：为了达到研究预置激光熔覆可以在45钢上制备Ni基非晶合金涂层的目的，采用非晶形成能力三判据原则及非晶成分团簇线定律法则，选择了采用常规非晶合金制备方法中具有极大玻璃形成能力的Ni59.35Nb34.45Sn6.2合金粉末，在保护气氛下，制备非晶涂层，并对不同输出功率下得到的涂层进行微观组织和结构表征及性能测试。

This paper shows the principle and current application situation of unsalable LaCe/LaPrCe misch metal regarded as additive in aluminum,magnesium,zinc,copper,steel and alloy,mainly illustrates the application progress of magnesium alloy AE44 with high-performacec,low cost and great heat-resistant property by replacing Cewith LaCe/LaPrCe misch metal,and reportes the application of LaCe/LaPrCe in nickel hydrogen electrode cathode material.

综述了我国大量滞销的轻稀土资源LaCe/LaPrCe混合稀土金属作为添加剂在铝、镁、锌、铜、钢及其合金中的作用机理及其应用现状；重点阐述了用LaCe/LaPrCe代替富铈混合稀土金属作镁合金主要成分，开发出高性能、低成本、新型耐热镁合金AE44研发工作应用进展；报导了LaCe/LaPrCe在镍氢电极负极材料应用及组装成氢镍电池的简况。

We have the high-class technical group , and the total operation procedure of die-designing, die-tailoring, hot chamber die casting, CNC, surface processing, painting. Our production include parts of magnesian manufacture of cars, 3C (Computer, Communication, Consumer electronic's) and tools of electromotion.

拥有日本、韩国先进的镁合金Die-casting加工工艺和品质管理经验，依托世界一流的技术专家团队，和具备从模具设计、制作、铸造、CNC加工到表面处理、涂装完整的作业流程，致力于专业开发和生产镁合金汽车零部件和3C电子产品、电动工具外壳等镁合金制品。

The study results have indicated that the alloy layer thickness decreases with increase of Si addition, increases linearly with rise of bath temperature and varies parabolically with length of dip time.

结果表明：在实验研究范围内，随硅元素含量的增加，合金层厚度降低；随浸镀温度的升高，合金层厚度呈直线增加；随浸镀时间的延长，合金层厚度呈抛物线规律变化。

The model is proved by the numerical simulation of three engineering cases. The SMA superelastic damper of tension-pressure type is introduced. The design and the working principle of the damper are outlined.

采用本文的形状记忆合金一维超弹性本构关系模型对工程算例进行了数值模拟，试验和数值模拟结果表明，本文的形状记忆合金超弹性一维本构关系模型，能够比较真实地模拟NiTi形状记忆合金在温度和应力作用下的受力性能，并且形式简单，计算方便，可满足工程应用要求。

The results shown that the β-Zr's forming in the electronic beam alloying cumbered the diffusing of oxygen, and it improved the corrosion resistance of zirconium alloys. After the Nb ion implanted in Zr-4, ZrO2 and NbN were formed, at the range of 1×10^17 to 3×10^17g/cm^2, with the dose increasing, the capability of corrosion resistance was improved.

结果发现：电子束合金化后形成的β-Zr相阻碍了氧的扩散，提高了合金耐蚀能力；Nb离子注入合金后，注入层中生成了ZrO2和NbN，当注入剂量在1×10^17~3×10^17个／平方分米范围内时，随着注入剂量的增加，耐腐蚀能力增强。

The weight percentage for the components of the hyaline coating is as follows: SiO2 45 to 54 percent, B2O3 15 to 20 percent, one or more of Na2O, K2O and Li2O, 10 to 24 percent, one or more of TiO2, ZrO2 and ZnO, 6 to 18 percent , and the rest is one or more of CaO, MgO and CeO2. Firstly, the glass powder is mixed with the mill additions to be pulped and then plated on the surface of titanium or the titanium alloy. After being dried, the surface of titanium or the titanium alloy is directly used for a thermal hydrogen treatment or smelted at a temperature of 900 to 1, 000 DEG C for 15 to 30 minutes and then a hyaline coating with a thickness of 20 to 70 micrometers is formed on the surface of titanium or the titanium alloy; secondly, titanium or the titanium alloy plated with the coating is conducted a thermal hydrogen treatment. After the treatment technique is finished, the coating flakes off automatically in the process of cooling; and finally, a surface treatment is supplemented to meet the requirement of the workpiece surface.

该玻璃质涂层成分按重量百分比：45-54SiO2，15-20B2O3，10-24Na2O、K2O、Li2O中的一种或多种，6-18TiO2、ZrO2、ZnO中的一种或多种，余量CaO、MgO、CeO2一种或多种，将玻璃粉与磨加物混合制浆并涂覆在钛或钛合金表面，干燥后直接用于热氢处理，或在900-1000℃下熔烧15-30min，在钛或钛合金表面制得20-70微米玻璃质涂层，随后将制有该涂层的钛或钛合金置于氢气气氛下进行热氢处理，处理工艺结束后，涂层在冷却过程中自剥落，最后辅以表面处理即可满足工件表面要求。

However, theseare favourable to only mono-or bi-borides, but not for borides with complex struc-ture such as Cr_5B_3 or W_2B_5. The coefficient of S_c for alloy of CsCl structuredeviating from Bragg's S_c is directly proportional to charge transfer in alloy.

对CsCl型合金，S_c对Bragg定律的偏离系数γ和合金中电荷转移量成正比，后者越大表明金属键越强，则合金对离子的阻止本领越大，这与实验结果是吻合的。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。