合金的

Sponge zirconium was employed as raw material to prepare wedge-like specimens of Zr52.5Cu17.9Ni14.6Al10Ti5 quinary alloy by a tilt casting method using ladle-hearth-type arc furnace. The effect of active element Sc on the glass forming ability and crystallization kinetic parameters of the quinary alloy is investigated.

摘 要：以海绵锆为原材料，利用浇包型坩埚电弧炉倾斜铸造法制备Zr52.5Cu17.9Ni14.6Al10Ti5五元块体非晶合金楔形试样，研究活性元素Sc对合金玻璃形成能力及晶化动力学参数的影响。

The effects of technical parameters of laser surface alloying processing on the qualities of the alloyed layer of rocker arm used in motor were investigated with orthogonal test,and the factors and their levels were analyzed.

采用正交试验，对激光表面合金化工艺参数进行了优化，分析了各工艺参数对气门摇臂合金化层质量的影响。

Special alloys: varnished or satiny alloy with soft and refined colour modulations.

特殊合金：漆皮或经过色彩调制并且光滑柔软的合金。

Hardware accessories, metal products, decorations, archaize alloy scutcheon, bag fittings, electronic hardware die casting, zinc die-castings, automotive plastic hardware, plastic seal, badge.

现主要产品有：五金饰品，装饰品，仿古金属产品，合金标牌，箱包配件，电子五金压铸件，汽车锌合金压铸件，塑胶五金件，胶章，徽章，产品远销欧美，日本，新加坡各地，受到广大客户的青睐与信任。

Compared with that of 3Cr13 alloy, the oxidation resistance of the composites containing 5 vol.％TiC particle was improved greatly at 850℃, but the improvement was relatively limited at 950℃. But the oxidation resistance of 1Cr18Ni9 composites containing 5 vol.％ TiC particle was obviously improved at 950℃, and at 850℃ the improvement is not large. The TiC particle can improve the oxidation resistance mainly was by developing the oxidation selectiveness of the Cr element as to change the phase constitution of the oxidation film, to alleviate the production of the stress in the oxidation film and to improve the cohesive force of the oxidation film or matrix interface and the chemical combination of the oxidation film.

与3Cr13合金相比，含5％volTiC颗粒的复合材料在850℃的抗氧化性能得到大幅度提高，而在950℃复合材料的抗氧化性能提高作用却是有限的；与1Cr18Ni9合金相比，含5％volTiC颗粒的复合材料在850℃的抗氧化性能略有提高，而950℃复合材料的抗氧化性能提高却是明显的；TiC颗粒可以提高两种基体合金抗氧化性能，主要是通过促进Cr的选择性氧化，进而改变氧化膜的相组成、减缓氧化膜内应力的产生、增加氧化膜/基体界面凝聚力及提高氧化膜化学结合力而实现的。

The results show that a MgSnO3·H2O conversion film is formed by treatment in the stannate solution at 90℃, and the immersion test and potentiodynamic polarization show that the corrosion resistance of the AZ91D alloy is improved to some extent.

结果表明：锡酸盐转化处理后合金表面形成了以MgSnO3·H2O为主要成分的转化膜，可对合金起到一定的防护作用；转化膜由细小的球形颗粒密积而成，颗粒之间存在间隙，它可以为化学镀镍的前处理过程提供良好的吸附条件；转化膜上的化学镀镍层组织致密、无缺陷， MgSnO3·H2O转化膜在镀镍层与基体之间起到过渡作用，镀层的磷含量达到9%，与基体结合良好；在3.5% NaCl (pH=7)溶液中的动电位极化测试表明，镀镍以后的合金在阳极极化过程中发生了明显的钝化，耐腐蚀性能进一步提高，对基体起到了较好的防护作用。

The directly electroless nickel plating, the stannate conversion processing and the electroless nickel plating on the surface of the magnesium alloys that have formed the stannate chemical conversion film on their surface were researched.

论文摘要：本文以AZ91D合金为研究对象，对其进行直接化学镀镍、锡酸盐化学转化处理以及在形成锡酸盐化学转化膜的镁合金表面进行化学镀镍。

The samples were dissolved in hydrochloric acid and nitric acid with lower temperature. The stibium content was directly determined by atomic absorption spectrometry.

合金以盐酸-硝酸混合酸低温溶解，用原子吸收光谱法直接测定合金中锑的含量。

AZ31B magnesium alloy samples with two dimensions were implanted on the submaxilla surface of New-Zealand rabbits,with comparison of Ti-6A1-4V titanium alloy as a control.

方法在实验动物单侧下颌骨表面分别植入不同型态的镁合金内固定系统，并用钛合金内固定系统作为对照组。

After active carbon powder and alloy steel powder are added to the thermit, the self-propagating high-temperature synthesis reaction starts.

本文研究了合金化自蔓延陶瓷内衬复合钢管制造技术，即在铝热剂中加入活性碳粉或合金钢粉末，进行自蔓延高温合成反应，分析了碳和合金元素对复合钢管过渡层的影响。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。