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      grain     
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  晶粒
    AN ELECTRON MICROSCOPE OBSERVATION ON THE DISTRIBUTION OF MnS PRECIPITATES IN GRAIN ORIENTED 3% Si-IRON
    晶粒取向3%Si-Fe中MnS质点分布的电子显微镜研究
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    THE EFFECT OF DECARBURIZING PROCESS ON THE MAGNETIC PROPERTIES OF THE GRAIN ORIENTED 3%Si-Fe
    脱碳工艺对晶粒取向3%Si-Fe磁性的影响
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    THE MECHANISM OF THE GRAIN GROWTH OF SUPERCONDUCTING COMPOUND Nb_3Sn
    Nb_3Sn复合超导体晶粒生长机制
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    INFLUENCE OF GRAIN SIZE ON THE LOW-CYCLE FATIGUE FOR TURBINE DISC OF GH33 SUPERALLOY
    低倍晶粒尺寸对GH0033合金涡轮盘低循环疲劳的影响
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    The study of The crystal grain size of the forging of the rolling stock axle (RD_2)
    RD_2车轴锻件晶粒度的研究
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    Grain Boundary Structure and Some Properties of Metals and Alloys
    界结构与金属材料的各种性质
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    THE EFFECT OF GRAIN SIZE ON THE SUPERPLASTIC DEFORMATION OF Zn-Al EUTECTOID ALLOYS
    粒度对Zn—Al共析合金超塑变形的影响
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    EFFECTS OF RARE EARTH ON ZENER'S RELAXATION AND GRAIN BOUNDARY RELAXATION OF TERNARY Fe-25Cr-5Al ALLOYS
    稀土对Fe-25Cr-5Al的Zener弛豫和界弛豫的影响
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    GRAIN BOUNDARY EMBRITTLEMENT BY μ AND σ PHASES IN IRON-BASE SUPERALLOYS
    铁基高温合金中μ相和σ相引起的界脆化
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    RESEARCHES ON WAVE GRAIN BOUNDARIES HEAT TREATMENT PROCESSES FOR GH220 ALLOY
    GH220合金弯曲界热处理制度的研究
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  颗粒
    Corrosion Resistance of Amorphous Alloy Grain/Resin Matrix Composites
    非晶合金颗粒/树脂基复合材料的耐蚀性
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    The Influence of Grain Size on Phase Transformation of Nano Materials
    颗粒尺度对纳米材料相变的影响
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    The results of SEM and EDXA show that the grain of Y_2O_3 is symmetrical distributed in the coating via Y_2O_3 modified,and the content of Al on the surface is up to 30.65%.
    SEM及EDXA观察结果表明,经Y_2O_3改性的渗层,Y2O3颗粒均匀分布于渗层中,且表面铝含量达到30.65%。
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    The new η phase appears in the interface of WC-γ during the annealing ,annexing WC grain and growing,and distributes in the boundary of the WC grain.
    退火时新η相成核于WC-γ相界,吞并WC晶粒而长大,分布在WC颗粒的边界。
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    The experimental results show that Al-Ti-C-P grain refiner has excellent effect on eutectic Al-Si alloy and the main phases of Al-Ti-C-P grain refiner are TiAl3,TiC and AlP,It is also found that the TiC and TiAl3 particles in the melt can improve the modification effect of AlP to Al-Si alloy.
    结果表明:Al-Ti-C-P晶粒细化剂的主要相组成为TiAl3、TiC、AlP,对共晶铝硅合金具有优良的变质效果。 晶粒细化剂中的TiAl3和TiC颗粒促进了AlP对共晶铝硅合金的变质效果。
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  粒度
    THE EFFECT OF GRAIN SIZE ON THE SUPERPLASTIC DEFORMATION OF Zn-Al EUTECTOID ALLOYS
    晶粒度对Zn—Al共析合金超塑变形的影响
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    INFLUENCE OF GRAIN SIZE AND ORDERING DEGREE OF PARENT PHASE ON M_s IN A Cu-Zn-Al ALLOY CONTAINING B
    含硼的Cu-Zn-Al合金中母相晶粒度和有序度对M_s的影响
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    EFFECTS OF GRAIN SIZE OF GRINDING WHEEL AND ITS DRESSING ON GROUND SURFACE QUALITY OF THE ROLLER BEARING STEEL GCr15
    砂轮粒度及其修整影响GCr15钢磨削表面质量的研究
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    Effects of Different Solution Treatments on Microstructure and Grain Size of GH128 Superalloy
    不同固溶处理对GH128晶粒度和显微组织的影响
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    Three sets of Co-eemented tungsten carbide (94 wt.%WC-6wt.%Co) blades with different average grain size (0.5, 1.5 and 3 μm) were used as substrates placed in the electron aided hot filament chemical vapor deposition (EACVD) reactor to fabricate diamond thin films.
    采用电子增强热丝CVD法,在三种不同WC晶粒度的硬质合金衬底表面(牌号为YG6,晶粒度分别为0.5,1.5和3μm)上涂覆一层金刚石薄膜。
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      grain
           This precursor was calcined at 300°C for 1, 2 and 3 hours respectively, and then the nanocrystalline ZnO of different grain size were obtained.
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           The average grain size of the hexagonal close-packed Ni particles evaluated by Scherrer equation is about 12 nm.
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           The coarse grain H?lder exponent of the image pixels is first computed.
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           Factors affecting distribution of microbiotic crusts in the grain-for-green land of the loess region, northern Shaanxi, China
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           With the reduction of the parameter combination, the intergranular phase γ-(Fe, Ni) is formed in the grain boundaries of Ni-Al intermetallic matrix instead of the intergranular phase α-Fe, and large amount of intermetallics are obtained.
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             Creep under very small torsional stress has been investigated for 99.95% polycrystalline iron in the temperature range of 350°-525℃. The general features of the creep curves obtained are essentially the same as those previously reported for 99.991% aluminum. The creep is shown to be consisted of two parts, one occurring at lower temperatures or shorter times and the other at higher temperatures or longer times. The first part of the creep is limited in extent and is associated with the viscous behavior of #...
                用99.95%的多晶纯铁作了从350°-525℃的扭转微蠕变及应力弛豫试验,所得结果的概貌与以前用多晶纯铝所得的基本上相同。从蠕变曲线上可以看出这蠕变是由两部分组成的:第一部分是在较低温度或较短时间内发生的,第二部分是在较高温度或较长时间内发生的。第一部分的蠕变是有限的,是由于晶粒间界的粘滞性滑移所引起。根据微蠕变及应力弛豫测量的结果,这一部分蠕变所包含的激活能是78,000±4,000卡/克分子。这个激活能(晶粒间界滑移激活能)的数值与纯铁自扩散的激活能很相近,表示晶粒间界与晶粒内部对于原子迁移的基本过程而言并没有显著的差异。 加碳于纯铁中对于这两部分的蠕变都有显著的影响。最值得注意的结果是含碳量少到0.0004%时已经使晶粒间界的粘滞性滑移受到显著的阻碍。这些发现在控制金属高温蠕变的问题上指出一个一般性的原则,对于以前所提出来的晶粒间界空穴模型也提供了一些新的实验证据。 根据加碳的实验结果,对于第二部分高温蠕变的机构也提出了一个初步的看法,这蠕变所包括的基本过程可能是晶粒内部的空穴中的原子重新排列。
    文摘来源
             The change of the height of the carbon diffusion peak was observed during the process of decarburization of an α-iron specimen containing a small amount of carbon, and it was found that the height of the peak first decreases and then increases with time to a maximum value twice. This indicates that the carbon adsorbed in iron goes twice into solid solution during the process of decarburization. The first re-dissolving phenomenon occurs sooner and the amount of carbon involved is comparatively less than that...
                观察了含有微量碳的α-Fe试样在去碳过程中碳扩散内耗峰的变化,发现了峰的高度在去碳过程中始而降低,但是继而升高,并两次达到最大值,这表示吸附于铁中的碳两次再溶于固溶体。第一次再溶发生在较短的去碳时间,再溶的碳量较少;第二次再溶发生在较长的去碳时间,再溶的碳量较多。根据细晶粒和粗晶粒试样的实验结果,认为第二次再溶现象是由于吸附在晶粒间界地区的碳原子放出来的结果,第一次再溶现象则与晶粒内部的吸附有关。 根据晶粒间界空穴模型讨论了碳在晶粒间界地区吸附的情况。此外并初步认为碳在晶粒内部的吸附是由于碳原子填入晶粒内部所含的晶体缺陷。
    文摘来源
             The formation of Widmanst(a|¨)tten structure of alpha iron in hypoeutectoidsteels was investigated in 0.27,0.40,0.52 and 0.60% carbon steels.Specimenswere heated to 860° and 1240℃ in vacuo and cooled at different rates to roomtemperature or isothermally treated at various temperatures between 650° and750℃ in vacuo.It was shown that the Widmanst(a|¨)tten structure of alpha ironproduced in 0.27,0.40 and 0.52% carbon steels was always accompanied by asurface relief of the type associated with bainite transform...
                试验证明亚共析钢中魏氏组织的α铁系以贝茵体型相变的机构形成,相当于无碳贝茵体。奥氏体晶粒尺度、碳含量、温度以及冷却速度对魏氏组织的影响都很容易根据贝茵体形成机构的理论加以解释。
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