合金的

The results show that constitutional phases in the 〓 alloy is the same as that in the 〓 alloy, but phase composition and transformation temperatures of two alloys are quite different. The Ms temperature of the 〓 alloy is lower than-180℃. In order to enable the alloy to be used for making pipe couplings, it is necessary to control Al addition and to increase Ti addition in the alloy. In the 〓 alloy, there exist three constitutional phases: TiNi matrix phase with B19′structure,β-Ta phase and NiTa〓 phase. Transformation temperatures, M〓, Ms, As and A〓, of the alloy are 55℃, 66℃, 94℃ and 109℃, respectively.

结果表明，〓合金显微组织的相组成物与〓合金一样，但相成分明显不同，相变温度相差较大，其Ms温度低于-180℃，要想使该系合金用于制作记忆合金管接头，必须控制铝的添加量并提高合金中的钛含量使合金的Ms温度控制在-80℃～-100℃之间；〓合金是由具有B19'结构的TiNi基体相、β—Ta固溶体和NiTa〓化合物三相组成的，其相变温度M〓、Ms、As和A〓分别为：55℃、66℃、94℃和109℃。

Consequently, the improvement of cycle life is described as the partial substitution of Zr for Mg in the alloy.

XRD结构分析表明：主相仍为Mg↓2Ni； Zr替代Mg使合金的微晶结构发生了改变，趋于非晶化；添加Zr的合金的容量比由扩散法合成的合金的容量有所提高；合金中添加Zr，提高了电极的放电容量，增大了放电平台；特别是Zr 对六方晶系Mg2Ni合金结构中Mg的部分取代大幅度提高了电极的循环寿命，未经任何处理的 Mg1.4Zr0.6Ni合金电极经25个循环后，放电容量仅衰减4.11%，表明添加Zr对提高合金的循环寿命具有重要的作用。

This paper elaborates on the performance of Monel ,and It tells us the foundry and pressure working of Monel .

分析了蒙乃尔合金的性能，叙述了铸造蒙乃尔合金和变形蒙乃尔合金及耐蚀阀门选用的蒙乃尔合金牌号，介绍了整体蒙乃尔合金阀门和蒙乃尔合金内件阀门适用条

Electrochemical measurements of the singler A2B7 and A5B19 phase alloy showed that, the activation properties of singler type A2B7 and AsB19 phase composition alloys were the same. The maximum discharge capacity (386.12mAh/g) of A2B7 type phase alloy was slightly higher than the maximum discharge capacity (371.38mAh/g) of A5B19 type phase alloy. The cyclic stability of alloy electrode of both A2B7 and A5B19-type phase alloy were all very well. The capacity retention rate of 100 cyclic was more than 85%.The high-rate discharge (HRD900=85%) of AsB19phase alloy was higher than the high-rate discharge (HRD900=76.6%) of A2B7phase alloy.

对较单一的A2B7与A5B19型物相合金进行电化学测试，结果表明：A2B7型相结构储氢合金的活化次数与A5B19型相结构储氢合金的活化次数基本相同，A2B7型物相合金的最大放电容量(386.12mAh/g)略高于A5B19型物相合金的最大放电容量(371.38mAh/g)。A2B7与A5B19型物相合金电极100个循环容量保持率都在85%以上，且差别不大。A5B19型相结构合金的高倍率放电性能(HRD900=85%)高于A2B7型相结构合金的高倍率放电性能(HRD900=76.6%)。

The results show that Fe0.13[Co20Ni80]0.87 alloy fibers are characterized with thin diameters between 0.3 and 2.0 μm, with high aspect ratio, dense and smooth surfaces. The crystalline size of the alloy fibers are mainly influenced by the thermal reduction temperature and are in the range of 20 to 50 nm with a corresponding reduction temperature range of 300 to 700 ℃. The magnetic properties of the alloy fibers are largely affected by the carbon content and crystalline sizes of the alloy fibers. With increasing thermal reduction temperature, the coercivity decreases while the saturation magnetisation value of the alloy fibers dramatically increases at lower reduction temperatures. The alloy fibers prepared at reduction temperature of 700 ℃ have a saturation magnetisation value of 120 Am2/kg and a coercivity value of 10.4 kA/m, respectively.

结果表明：Fe0.13[Co20Ni80]0.87合金纤维的直径为0.3~2.0 μm，表面光滑、长径比大；组成合金纤维的晶粒大小与还原温度密切相关，当温度为300~700 ℃时，晶粒尺寸由约20 nm增加到约50 nm；该合金纤维显铁磁性，其矫顽力主要受合金中C含量及晶粒大小的影响，随制备温度的升高而降低；饱和磁化强度则主要与合金的组分相关，随还原温度的升高和合金纯度的提高而增大；经700 ℃热还原后，合金纤维的饱和磁化强度 m s为120 Am2/kg，矫顽力 H c为10.4 kA/m。

Taking the practice that uses liquating method to recycle magnesium alloy waste so as to produce AZ91 alloy for example, the work is done to compare the environmental impact of both primary magnesium alloy and recycled magnesium alloy.

以熔解法回收镁合金废料生产AZ91合金为例，比较了原生镁合金和再生镁合金的环境影响。

The results show that the dissolution process of prefabricating alloy can be divided into two periods when the temperature of zinc melt is below the melting point of aluminum.Firstly,zinc melts infiltrates into the prefabricating alloy and then Zn-Al-TiC alloy forms in the surface layer of the prefabricating alloy.Secondly,the Zn-Al-TiC alloy of this alloy surface layer begins to dissolve to the zinc melt.

结果表明：当锌熔体温度低于铝熔点时，预制合金的溶解可分为两个阶段：第一阶段为液态锌向预制合金中浸渗，并在预制合金表层内形成Zn-Al-TiC合金；第二阶段为预制合金表层内的Zn-Al-TiC合金开始溶解并进入锌熔体。

Crystal structure was identified by X-ray diffractometer using Cu Kαradiation at room temperature.

稀土元素对合金晶体结构没有影响；添加稀土元素显著提高了合金的相变温度，使合金的相变热滞后稍有降低，同时对合金的居里温度影响不大；添加稀土元素合金的晶粒明显细化，改善了合金的机械性能。

Grain boundary slidings happen in this alloy at the creep temperature of 200 ℃ and the deformation of this alloy is coordinated by intragranular slip and grain boundary sliding.

结果表明：在125~200 ℃蠕变温度下，当蠕变寿命接近100 h时，2024铝合金的蠕变应力随着温度的升高明显下降；与125 ℃相比，150 ℃时合金的蠕变应力下降9.3%，在175 ℃时合金的蠕变应力下降30.3%；当蠕变温度为200 ℃时，该合金的蠕变应力下降幅度达到45.8%；在125~175 ℃下，合金在蠕变过程中的变形机制主要为位错在晶内的滑移；在200℃时，合金晶界开始发生滑移，合金变形由晶界滑移与位错在晶内的滑移协调完成；在合金蠕变断面上存在大量微孔，随着蠕变温度的升高，微孔的尺寸明显变大，当微孔尺寸超过3 μm时，微孔对合金的断裂机制有显著影响；在125和150 ℃下，合金的蠕变断口呈现韧窝型穿晶断裂特征；在175和200 ℃下，合金的蠕变断口呈现沿晶断裂特征。

Heat treating of tool steels 工具钢的热处理 The purpose of heat treatment is to control the properties of a metal or alloy through the alteration of the structure of the metal or alloy by heating it to definite temperatures and cooling at various rates.

热处理的目的是通过把金属或合金加热到预定的温度并以不同的速率冷却，来改变金属或合金的结构，从而控制它们的性质。

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。